Documentation: Census 2000
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Publisher: U.S. Census Bureau
Survey: Census 2000
Document: Summary File 1 Technical Documentation
citation:
Social Explorer, U.S. Census Bureau; 2000 Census of Population and Housing, Summary File 1: Technical Documentation, 2001.
Summary File 1 Technical Documentation
Chapter 7. Data Dictionary
Identification Section
NOTE: The filling of codes and data attributes in the files is specific to summary level; not all fields are filled for every summary level. Where a code or attribute is specified, the actual value is assigned to the field except for the use of three special codes:

Assignment of codes of nine (9) indicates a balance record or that the entity or attribute does not exist for this record.

Assignment of pound signs (#) indicates that more than one value exists for this field and, thus, no specific value can be assigned.

Assignment of exclamation marks (!) indicates that this value has not yet been determined for this file.

Field name Data dictionary refernce name Field size Starting position Data Type
RecordCodes
File Identification1   FILEID 6 1 A/N
State/U.S.-Abbreviation(USPS)   STUSAB 2 7 A
AK Alaska        
AL Alabama        
AR Arkansas        
AS AmericanSamoa        
AZ Arizona        
CA California        
CO Colorado        
CT Connecticut        
DC DistrictofColumbia        
DE Delaware        
FL Florida        
GA Georgia        
GU Guam        
HI Hawaii        
IA Iowa        
ID Idaho        
IL Illinois        
IN Indiana        
KS Kansas        
KY Kentucky        
LA Louisiana        
MA Massachusetts        
MDME MarylandMaine        
MIMN MichiganMinnesota        
MP NorthernMarianaIslands        
MO Missouri        
MS Mississippi        
MT Montana        
NC NorthCarolina        
ND NorthDakota        
NE Nebraska        
NH NewHampshire        
NJ NewJersey        
NM NewMexico        
NV Nevada        
NY NewYork        
OH Ohio        
OK Oklahoma        
OR Oregon        
PA Pennsylvania        
PR PuertoRico        
RI RhodeIsland        
SC SouthCarolina        
SD SouthDakota        
TN Tennessee        
TX Texas        
US UnitedStates        
UT Utah        
VA Virginia        
VI VirginIslandsoftheUnitedStates        
VT Vermont        
WA Washington        
WI Wisconsin        
WV WestVirginia        
WY Wyoming        
Summary Level2   SUMLEV 3 9 N
Geographic Component3   GEOCOMP 2 12 A/N

Characteristic Iteration4

000Not a characteristic iteration

  CHARITER 3 14 A/N
Characteristic Iteration File Sequence Number   CIFSN 2 17 A/N
Logical Record Number5   LOGRECNO 7 19 N


Field name Data dictionary refernce name Field size Starting position Data Type
Geographic Area Codes
Region6   REGION 1 26 A/N
1 Northeast        
2 Midwest        
3 South        
4 West        
9 Not in a region (Puerto Rico,American Samoa,Guam,Northern Mariana Islands,Virgin        
Division6   DIVISION 1 27 A/N
0 Not in a division (Puerto Rico, American Samoa, Guam, Northern Mariana Islands, Virgin Islands of the United States)        
1 New England        
2 Middle Atlantic        
3 East North Central        
4 West North Central        
5 South Atlantic        
6 East South Central        
7 West South Central        
8 Mountain        
9 Pacific        
State(Census)6   STATECE 2 28 A/N
01 Northern Mariana Islands        
03 American Samoa        
04 Guam        
06 Puerto Rico        
7 Virgin Islands of the United States        
11 Maine        
12 New Hampshire        
13 Vermont        
14 Massachusetts        
15 RhodeIsland        
16 Connecticut        
21 NewYork        
22 New Jersey        
23 Pennsylvania        
31 Ohio        
32 Indiana        
33 Illinois        
34 Michigan        
35 Wisconsin        
41 Minnesota        
42 Iowa        
43 Missouri        
44 North Dakota        
45 South Dakota        
46 Nebraska        
47 Kansas        
51 Delaware        
52 Maryland        
53 District of Columbia        
54 Virginia        
55 West Virginia        
56 North Carolina        
57 South Carolina        
58 Georgia        
59 Florida        
61 Kentucky        
62 Tennessee        
63 Alabama        
64 Mississippi        
71 Arkansas        
72 Louisiana        
73 Oklahoma        
74 Texas        
81 Montana        
82 Idaho        
83 Wyoming        
84 Colorado        
85 New Mexico        
86 Arizona        
87 Utah        
88 Nevada        
91 Washington        
92 Oregon        
93 California        
94 Alaska        
95 Hawaii        
State(FIPS)6,7   STATE 2 30 A/N
01 Alabama        
02 Alaska        
04 Arizona        
05 Arkansas        
06 California        
08 Colorado        
09 Connecticut        
10 Delaware        
11 District of Columbia        
12 Florida        
13 Georgia        
15 Hawaii        
16 Idaho        
17 Illinois        
18 Indiana        
19 Iowa        
20 Kansas        
21 Kentucky        
22 Louisiana        
23 Maine        
24 Maryland        
25 Massachusetts        
26 Michigan        
27 Minnesota        
28 Mississippi        
29 Missouri        
30 Montana        
31 Nebraska        
32 Nevada        
33 New Hampshire        
34 New Jersey        
35 New Mexico        
36 New York        
37 North Carolina        
38 North Dakota        
39 Ohio        
40 Oklahoma        
41 Oregon        
42 Pennsylvania        
44 RhodeIsland        
45 South Carolina        
46 South Dakota        
47 Tennessee        
48 Texas        
49 Utah        
50 Vermont        
51 Virginia        
53 Washington        
54 West Virginia        
55 Wisconsin        
56 Wyoming        
60 American Samoa        
66 Guam        
69 Northern Mariana Islands        
72 Puerto Rico        
78 Virgin Islands of the United States        
County6   COUNTY 3 32 A/N
County Size Code   COUNTYSC 2 35 A/N
00 Not in universe        
01 0        
02 1-24        
03 25-99        
04 100-199        
05 200-249        
06 250-299        
07 300-499        
08 500-999        
09 1,000-1,499        
10 1,500-1,999        
11 2,000-2,499        
12 2,500-4,999        
13 5,000-9,999        
14 10,000-19,999        
15 20,000-24,999        
16 25,000-49,999        
17 50,000-99,999        
18 100,000-249,999        
19 250,000-499,999        
20 500,000-999,999        
21 1,000,000-2,499,999        
22 2,500,000-4,999,999        
23 5,000,000ormore        
County Subdivision(FIPS)6,7   COUSUB 5 37 A/N
FIPS County Subdivision Class Code7   COUSUBCC 2 42 A/N
C1 Incorporated place that is governmentally active, is not related to an Alaska Native village statistical area (ANVSA), and does not serve as a minor civil division (MCD) equivalent.        
C2 Incorporated place that also serves as a minor civil division (MCD)equivalent because,although the place is coextensive with an MCD , the Census Bureau, in agreement with state officials, does not recognize that MCD for presenting statistical data since the MCD cannot provide governmental services (Iowa and Ohio only).        
C5

Incorporated place that also serves as a minor civil division (MCD) equivalent because it is not part of any MCD or a county subdivision classified as Z5.

       
C7

Incorporated place that is an independent city; that is, it also serves as a county equivalent because it is not part of any county, and a minor civil division (MCD) equivalent because it is not part of any MCD.

       
T1 Governmentally active minor civil division (MCD) that is not coextensive with an incorporated place.        
T5 Governmentally active minor civil division (MCD) that is coextensive with an incorporated place.        
T9 Minor civil division (MCD) whose government is inactive.        
Z1 Minor civil division (MCD) that cannot provide general-purpose governmental services.        
Z2 American Indian reservation and/or off-reservation trust land area that also serves as a primary division of a county or statistically equivalent area.        
Z3 Unorganized territory identified by the Census Bureau as a minor civil division (MCD) equivalent for presenting statistical data.        
Z5 Census county division (CCD), census subarea (Alaska only), or census subdistrict (U.S. Virgin Islands only).        
Z7 Incorporated place that the Census Bureau treats as a minor civil division (MCD) equivalent because it is not in any MCD or is coextensive with a legally established but nonfunctioning MCD that the Census Bureau does not recognize for statistical data presentation purposes, AND is located in a state or county whose MCDs cannot provide governmental services (Iowa, Louisiana, Nebraska, and North Carolina only).        
Z9 Pseudo-minor civil division (MCD) that consists of water area not assigned to any legal MCD.        
County Subdivision Size Code   COUSUBSC 2 44 A/N
00 Not in universe        
01 0        
02 1-24        
03 25-99        
04 100-199        
05 200-249        
06 250-299        
07 300-499        
08 500-999        
09 1,000-1,499        
10 1,500-1,999        
11 2,000-2,499        
12 2,500-4,999        
13 5,000-9,999        
14 10,000-19,999        
15 20,000-24,999        
16 25,000-49,999        
17 50,000-99,999        
18 100,000-249,999        
19 250,000-499,999        
20 500,000-999,999        
21 1,000,000-2,499,999        
22 2,500,000-4,999,999        
23 5,000,000ormore        
Place(FIPS)6,7   PLACE 5 46 A/N
FIPS Place Class Code7   PLACECC 2 51 A/N
C1 Incorporated place that is governmentally active,is not related to an Alaska Native village statistical area(ANVSA),and does not serve as a minor civil division(MCD)equivalent.        
C2 Incorporated place that also serves as a minor civil division (MCD) equivalent because, although the place is coextensive with an MCD, the Census Bureau, in agreement with state officials, does not recognize that MCD for presenting statistical data since the MCD cannot provide governmental services (Iowa and Ohio only).        
C5 Incorporated place that also serves as a minor civil division (MCD) equivalent because it is not part of any MCD or a county subdivision classified as Z5.        
C6 Incorporated place that coincides with or approximates an Alaska Native village statistical area (ANVSA).        
C7 Incorporated place that is an independent city; that is, it also serves as a county equivalent because it is not part of any county, and a minor civil division (MCD) equivalent because it is not part of any MCD.        
C8 The portion ("balance") of a consolidated city that excludes the separately incorporated place(s) within that jurisdiction.        
C9 Incorporated place whose government is operationally inactive or is not included in any other "C" subclass.        
M2 Military or U.S. Coast Guard installation (or part of an installation) that serves as a census designated place (CDP).        
U1 Census designated place (CDP) with a name that is commonly recognized for the populated area and designated as a populated space by the U.S. Geological Survey (USGS).        
U2 Census designated place (CDP) with a name that is not commonly recognized for the populated area (e.g., a combination of the names of two or three commonly recognized communities, or a name that identifies the location of the CDP in relation to an adjacent incorporated place).        
U9 Census designated place (CDP) that coincides with or approximates an Alaska Native village statistical area (ANVSA).        
Note: Place class code is set at both the place-county level and for the whole place and could vary if a place is in multiple counties. The place class code describes the portion of the place within a county in all summary levels except: 160, 372, 375, 382, 391, 460, 461, and 531; for those excepted summary levels, the place description describes the entire place entity. The different place class codes only can occur in Iowa, Nebraska, and Ohio.        
Place Description Code   PLACEDC 1 53 A/N
0 Legal entity has no area classified as a central place of an urban area or central city of a metropolitan area (MA).        
1 Legal entity has all of its area classified as a central place of an urban area and as a central city of a metropolitan area (MA).        
2 Legal entity has part of its area classified as a central place of an urban area and all of its area classified as a central city of a metropolitan area (MA).        
3 Legal entity has no area classified as a central place of an urban area and all of its area classified as a central city of a metropolitan area (MA).        
4 Legal entity has all of its area classified as a central place of an urban area and part of its area classified as a central city of a metropolitan area (MA).        
5 Legal entity has part of its area classified as a central place of an urban area and part of its area classified as a central city of a metropolitan area (MA).        
6 Legal entity has no area classified as a central place of an urban area and part of its area classified as a central city of a metropolitan area (MA).        
7 Legal entity has all of its area classified as a central place of an urban area and no area classified as a central city of a metropolitan area (MA).        
8 Legal entity has part of its area classified as a central place of an urban area and no area classified as a central city of a metropolitan area (MA).        
9 Entity is a "false" entity and not applicable for a place description.        
A Statistical entity has no area classified as a central place of an urban area or central city of a metropolitan area (MA).        
B Statistical entity has all of its area classified as a central place of an urban area and as a central city of a metropolitan area (MA).        
C Statistical entity has part of its area classified as a central place of an urban area and all of its area classified as a central city of a metropolitan area (MA).        
D Statistical entity has no area classified as a central place of an urban area and all of its area classified as a central city of a metropolitan area (MA).        
E Statistical entity has all of its area classified as a central place of an urban area and part of its area classified as a central city of a metropolitan area (MA).        
F Statistical entity has part of its area classified as a central place of an urban area and part of its area classified as a central city of a metropolitan area (MA).        
G Statistical entity has no area classified as a central place of an urban area and part of its area classified as a central city of a metropolitan area (MA).        
H Statistical entity has all of its area classified as a central place of an urban area and no area classified as a central city of a metropolitan area (MA).        
I Statistical entity has part of its area classified as a central place of an urban area and no area classified as a central city of a metropolitan area (MA).        
Note: Place description code is set at both the place-county level and for the whole place and could vary if a place is in multiple counties. The place description code describes the portion of the place within a county in all summary levels except: 160, 372, 375, 382, 391, 460, 461, and 531; for those excepted summary levels, the place description describes the entire place entity.        
Place Size Code   PLACESC 2 54 A/N
00 Not in universe        
01 0        
02 1-24        
03 25-99        
04 100-199        
05 200-249        
06 250-299        
07 300-499        
08 500-999        
09 1,000-1,499        
10 1,500-1,999        
11 2,000-2,499        
12 2,500-4,999        
13 5,000-9,999        
14 10,000-19,999        
15 20,000-24,999        
16 25,000-49,999        
17 50,000-99,999        
18 100,000-249,999        
19 250,000-499,999        
20 500,000-999,999        
21 1,000,000-2,499,999        
22 2,500,000-4,999,999        
23 5,000,000or more        
Census Tract6   TRACT 6 56 A/N
Block Group6   BLKGRP 1 62 A/N
Block6   BLOCK 4 63 A/N
Internal Use Code8   IUC 2 67 A/N
Consolidated City (FIPS)6,7   CONCIT 5 69 A/N
03436 Athens-Clarke County,Georgia        
04200 Augusta-Richmond County, Georgia        
11397 Butte-Silver Bow, Montana        
19000 Columbus, Georgia        
36003 Indianapolis, Indiana        
47515 Milford, Connecticut        
52006 Nashville-Davidson, Tennessee        
FIPS Consolidated City Class Code 6,7   CONCITCC 2 74 A/N
C3 Consolidated city        
Consolidated City Size Code   CONCITSC 2 76 A/N
00 Not in universe        
01 0        
02 1-24        
03 25-99        
04 100-199        
05 200-249        
06 250-299        
07 300-499        
08 500-999        
09 1,000-1,499        
10 1,500-1,999        
11 2,000-2,499        
12 2,500-4,999        
13 5,000-9,999        
14 10,000-19,999        
15 20,000-24,999        
16 25,000-49,999        
17 50,000-99,999        
18 100,000-249,999        
19 250,000-499,999        
20 500,000-999,999        
21 1,000,000-2,499,999        
22 2,500,000-4,999,999        
23 5,000,000 or more        
American Indian Area/Alaska Native Area/Hawaiian HomeLand(Census)6,9   AIANHH 4 78 A/N
American Indian Area/Alaska Native Area/Hawaiian HomeLand(FIPS)6,7,9,10   AIANHHFP 5 82 A/N
FIPS American Indian Area/Alaska Native Area/Hawaiian HomeLand Class Code 7,9   AIANHHCC 2 87 A/N
D1 Federally recognized American Indian reservation that has associated off-reservation trust land.        
D2 Federally recognized American Indian reservation that does not have associated off-reservation trust lands.        
D3 Federally recognized American Indian off-reservation trust land area without any associated reservation.        
D4 State recognized American Indian reservation.        
D6 Statistical entity identified for a federally recognized American Indian tribe that does not have a reservation or identified off-reservation trust land. Specifically, a tribal designated statistical area (TDSA) or Oklahoma tribal statistical area (OTSA) but excluding Alaska Native village statistical areas (ANVSAs).        
D9 State designated American Indian statistical area (SDAISA).        
E1 Alaska Native village statistical area (ANVSA) that does not coincide with or approximate an incorporated place or a census designated place (CDP).        
E2 Alaska Native village statistical area (ANVSA) that coincides with or approximates a census designated place (CDP).        
E6 Alaska Native village statistical area (ANVSA) that coincides with or approximates an incorporated place.        
F1 Hawaiian home land, an area established by the Hawaiian Homes Commission Act of 1921 providing for lands held in trust by the State of Hawaii for the benefit of Native Hawaiians.        
American Indian Trust Land/Hawaiian Home Land Indicator9   AIHHTLI 1 89 A/N
R American Indian reservation (federal and state) only, Oklahoma tribal statistical area (OTSA), tribal designated statistical area (TDSA), and state designated American Indian statistical area (SDAISA)        
T Of f-reservation trust land        
H Hawaiian home land        
M American Indian reservation with associated off-reservation trust land        
9 Not an American Indian area        
American Indian Tribal Subdivision (Census)6   AITSCE 3 90 A/N
American Indian Tribal Subdivision (FIPS) 6,7,10   AITS 5 93 A/N
FIPS American Indian Tribal Subdivision Class Code7   AITSCC 2 98 A/N
D7 American Indian Tribal Subdivision        
Alaska Native Regional Corporation (FIPS) 6,7   ANRC 5 100 A/N
00590 Ahtna        
01570 Aleut        
03950 Arctic Slope        
06370 Bering Straits        
09040 Bristol Bay        
09800 Calista        
14410 Chugach        
17140 Cook Inlet        
20010 Doyon        
41640 Koniag        
52120 NANA        
67940 Sealaska        
FIPSAlaska Native Regional Corporation Class Code7   ANRCCC 2 105 A/N
E7 Alaska Native Regional Corporation        
Metropolitan Statistical Area/Consolidated   MSACMSA 4 107 A/N
Metropolitan Statistical Area6          
MSA/CMSA Size Code   MASC 2 111 A/N
00 Not in universe        
01 0        
02 1-24        
03 25-99        
04 100-199        
05 200-249        
06 250-299        
07 300-499        
08 500-999        
09 1,000-1,499        
10 1,500-1,999        
11 2,000-2,499        
12 2,500-4,999        
13 5,000-9,999        
14 10,000-19,999        
15 20,000-24,999        
16 25,000-49,999        
17 50,000-99,999        
18 100,000-249,999        
19 250,000-499,999        
20 500,000-999,999        
21 1,000,000-2,499,999        
22 2,500,000-4,999,999        
23 5,000,000or more        
Consolidated Metropolitan Statistical Area 6   CMSA 2 113 A/N
Metropolitan Area Central City Indicator   MACCI 1 115 A/N
Y Yes, designated or within a central city of a metropolitan area        
N No, not designated or within a central city of a metropolitan area        
9 Area is not in metropolitan area        
Primary Metropolitan Statistical Area 6   PMSA 4 116 A/N
New England County Metropolitan Area   NECMA 4 120 A/N
New England County Metropolitan Area Central City   NECMACCI 1 124 A/N
Indicator          
Y Yes, designated or within a central city of a New England county metropolitan area        
N No, not designated or within a central city of a New England county metropolitan area        
9 Area is not in New England county metropolitan area        
New England County Metropolitan Area Size Code   NECMASC 2 125 A/N
Extended Place Indicator6   EXI 1 127 A/N
Y Extended city        
N Not an extended city        
Urban Area6   UA 5 128 A/N
Urban Area Size Code   UASC 2 133 A/N
00 Not in universe        
01 0        
02 1-24        
03 25-99        
04 100-199        
05 200-249        
06 250-299        
07 300-499        
08 500-999        
09 1,000-1,499        
10 1,500-1,999        
11 2,000-2,499        
12 2,500-4,999        
13 5,000-9,999        
14 10,000-19,999        
15 20,000-24,999        
16 25,000-49,999        
17 50,000-99,999        
18 100,000-249,999        
19 250,000-499,999        
20 500,000-999,999        
21 1,000,000-2,499,999        
22 2,500,000-4,999,999        
23 5,000,000or more        
Urban Area Type   UATYPE 1 135 A/N
U Urbanized area        
C Urban cluster        
9 Not in an urban area        
Urban/Rural6   UR 1 136 A/N
U Wholly urban        
R Wholly rural        
M Mixed(partially urban and rural)        
Congressional District(106th)6   CD106 2 137 A/N
Congressional District(108th)6   CD108 2 139 A/N
Congressional District(109th)6   CD109 2 141 A/N
Congressional District(110th)6   CD110 2 143 A/N
01-52 The actual congressional district number        
00 Applies to states whose representative is elected "at large";i.e., the state has only one representative in the United States House of Representatives        
98 Applies to areas that have an "at large" nonvoting delegate or resident commissioner in the United States House of Representatives        
99 Applies to areas that have no representation in the United States House of Representatives        
State Legislative District (Upper Chamber)6,11   SLDU 3 145 A/N
State Legislative District(Lower Chamber)6,11   SLDL 3 148 A/N
Voting District6,12   VTD 6 151 A/N
Voting District Indicator   VTDI 1 157 A/N
A Actual voting district        
P Pseudo-voting district        
Blank voting districts not defined for this county          
ZIP Code Tabulation Area(3 digit)6   ZCTA3 3 158 A/N
ZIP Code Tabulation Area(5 digit)6   ZCTA5 5 161 A/N
Subbarrio(FIPS)6,7   SUBMCD 5 166 A/N
FIPS Subbarrio Class Code7   SUBMCDCC 2 171 A/N
Z6 Subbarrio in Puerto Rico        


Field name Data dictionary refernce name Field size Starting position Data Type
Area Characteristics
Area(Land)13   AREALAND 14 173 A/N
Area(Water)14   AREAWATR 14 187 A/N
Area Name-Legal/Statistical Area Description(LSAD)Term-Part Indicator15   NAME 90 201 A/N
Functional Status Code   FUNCSTAT 1 291 A/N
A Active government providing primary general-purpose functions.        
B Active government that is partially consolidated with another government but with separate officials providing primary general-purpose functions.        
C Active government that is consolidated with another government that has the same officials providing primary general-purpose functions. Functional status C is assigned to the nonprimary entity.        
E Active government providing special-purpose functions.        
F Fictitious entity created to fill the Census Bureau's geographic hierarchy that is coextensive or nearly so with another governmental unit.        
G Active government that is fiscally or administratively subordinate to another unit of government that provides primary general-purpose functions; not classified as a government by the Census Bureau's Governments Division.        
I Inactive governmental unit that has the power to provide primary general-purpose functions.        
N Non functioning legal entity.        
S Statistical entity.        
T State recognized American Indian tribe.        
Geographic Change User Note Indicator   GCUNI 1 292 A/N
Y Geographic change user note exists for this entity        
N No geographic change user note exists for this entity        
PopulationCount(100%)16   POP100 9 293 A/N
HousingUnitCount(100%)17   HU100 9 302 A/N
InternalPoint(Latitude)18   INTPTLAT 9 311 A/N
InternalPoint(Longitude)19   INTPTLON 10 320 A/N
Legal/Statistical Area Description Code20   LSADC 2 330 A/N
Part Flag   PARTFLAG 1 332 A/N
W Not a Part        
P Part        


Field name Data dictionary refernce name Field size Starting position Data Type
Special Area Codes
School District (Elementary)   SDELM 5 333 A/N
School District (Secondary)   SDSEC 5 338 A/N
School District (Unified)   SDUNI 5 343 A/N
Traffic Analysis Zone   TAZ 6 348 A/N
Oregon Urban Growth Area   UGA 5 354 A/N
Public Use Microdata Area - 5% File6   PUMA5 5 359 A/N
Public Use Microdata Area - 1% File6   PUMA1 5 364 A/N
Reserved   RESERVE2 15 369 A/N
Metropolitan Area Central City   MACC 5 384 A/N
Urban Area Central Place   UACP 5 389 A/N
Reserved   RESERVED 7 394 A/N


Footnote Section
1. A unique, six-character identifier for each file series. File identification codes are as follows:

"uPL" Census 2000 Redistricting Data (Public Law 94-171) Summary File
"uRHLSF" Race and Hispanic or Latino Summary File
"uSF1" SF 1 summary files for 52 states
"uSF1A" SF 1 Advance National file
"uSF1F" SF 1 Final National file
"SF2" SF 2 summary files for 52 states
"SF2A" SF 2 Advance national file
"SF2F" SF 2 Final National file
"SF3" SF 3 summary files for 52 states
"SF3A" SF 3 Advance National file
"SF3F" SF 3 Final National file
"SF4" SF 4 summary files for 52 states

See How to Use This File for further information.

2. Identifies the geographic level for which the data matrices on the summary file have been summarized. The summary level sequence chart describes the hierarchical arrangement of the specified geographic areas with other geographic areas, if any. The summary level must be used in combination with the geographic area codes to identify a specific geographic area (for example, summary level 050 and a specific county code must be used together to locate the data for a particular county). See How to Use This File for further information.

3. Indicates an iteration (repetition), for the specified summary level, of the data matrices on the summary file for the geographic components listed in the Geographic Component field. See How to Use This File for further information.
Geographic Component Codes

00 Not a geographic component
01 Urban
02 Urban-in central place of urban area
03 Urban-not in central place of urban area
04 Urban-in urbanized area
05 Urban-in urbanized area of 5,000,000 or more population
06 Urban-in urbanized area of 2,500,000 to 4,999,999 population
07 Urban-in urbanized area of 1,000,000 to 2,499,999 population
08 Urban-in urbanized area of 500,000 to 999,999 population
09 Urban-in urbanized area of 250,000 to 499,999 population
10 Urban-in urbanized area of 100,000 to 249,999 population
11 Urban-in urbanized area of 50,000 to 99,999 population
12 Urban-in urbanized area-in central place of urbanized area
13 Urban-in urbanized area of 5,000,000 or more population-in central place of urbanized area
14 Urban-in urbanized area of 2,500,000 to 4,999,999 population-in central place of urbanized area
15 Urban-in urbanized area of 1,000,000 to 2,499,999 population-in central place of urbanized area
16 Urban-in urbanized area of 500,000 to 999,999 population-in central place of urbanized area
17 Urban-in urbanized area of 250,000 to 499,999 population-in central place of urbanized area
18 Urban-in urbanized area of 100,000 to 249,999 population-in central place of urbanized area
19 Urban-in urbanized area of 50,000 to 99,999 population-in central place of urbanized area
20 Urban-in urbanized area-not in central place of urbanized area
21 Urban-in urbanized area of 5,000,000 or more population-not in central place of urbanized area
22 Urban-in urbanized area of 2,500,000 to 4,999,999 population-not in central place of urbanized area
23 Urban-in urbanized area of 1,000,000 to 2,499,999 population-not in central place of urbanized area
24 Urban-in urbanized area of 500,000 to 999,999 population-not in central place of urbanized area
25 Urban-in urbanized area of 250,000 to 499,999 population-not in central place of urbanized area
26 Urban-in urbanized area of 100,000 to 249,999 population-not in central place of urbanized area
27 Urban-in urbanized area of 50,000 to 99,999 population-not in central place of urbanized area
28 Urban-in urban cluster
29 Urban-in urban cluster of 25,000 to 49,999 population
30 Urban-in urban cluster of 10,000 to 24,999 population
31 Urban-in urban cluster of 5,000 to 9,999 population
32 Urban-in urban cluster of 2,500 to 4,999 population
33 Urban-in urban cluster-inside central place
34 Urban-in urban cluster of 25,000 to 49,999 population-inside central place
35 Urban-in urban cluster of 10,000 to 24,999 population-inside central place
36 Urban-in urban cluster of 5,000 to 9,999 population-inside central place
37 Urban-in urban cluster of 2,500 to 4,999 population-inside central place
38 Urban-in urban cluster-not in central place
39 Urban-in urban cluster of 25,000 to 49,999 population-not in central place
40 Urban-in urban cluster of 10,000 to 24,999 population-not in central place
41 Urban-in urban cluster of 5,000 to 9,999 population-not in central place
42 Urban-in urban cluster of 2,500 to 4,999 population-not in central place
43 Rural
44 Rural-place
45 Rural-place of 2,500 or more population
46 Rural-place of 1,000 to 2,499 population
47 Rural-place of less than 1,000 population
48 Rural-not in place
49 Rural-farm
50 Urban portion of extended city
51 Rural portion of extended city
52 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)
53 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 5,000,000 or more population
54 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 2,500,000 to 4,999,999 population
55 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 1,000,000 to 2,499,999 population
56 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 500,000 to 999,999 population
57 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 250,000 to 499,999 population
58 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 100,000 to 249,999 population
59 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 50,000 to 99,999 population
60 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- urban
61 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- urban-in urbanized area
62 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- urban-in urban cluster
63 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- rural
64 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)-in MSA/CMSA central city
65 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 5,000,000 or more population-in MSA/CMSA central city
66 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 2,500,000 to 4,999,999 population-in MSA/CMSA central city
67 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 1,000,000 to 2,499,999 population-in MSA/CMSA central city
68 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 500,000 to 999,999 population-in MSA/CMSA central city
69 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 250,000 to 499,999 population-in MSA/CMSA central city
70 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 100,000 to 249,999 population-in MSA/CMSA central city
71 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 50,000 to 99,999 population-in MSA/CMSA central city
72 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- not in MSA/CMSA central city
73 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 5,000,000 or more population-not in MSA/CMSA central city
74 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 2,500,000 to 4,999,999 population-not in MSA/CMSA central city
75 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 1,000,000 to 2,499,999 population-not in MSA/CMSA central city
76 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 500,000 to 999,999 population-not in MSA/CMSA central city
77 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 250,000 to 499,999 population-not in MSA/CMSA central city
78 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 100,000 to 249,999 population-not in MSA/CMSA central city
79 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA) of 50,000 to 99,999 population-not in MSA/CMSA central city
80 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- not in MSA/CMSA central city-urban
81 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- not in MSA/CMSA central city-urban-in urbanized area
82 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- not in MSA/CMSA central city-urban-in urban cluster
83 In metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)- not in MSA/CMSA central city-rural
84 Not in metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)
85 Not in metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)-urban
86 Not in metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)-urban-inside urbanized area
87 Not in metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)-urban-inside urban cluster
88 Not in metropolitan statistical area (MSA)/consolidated metropolitan statistical area (CMSA)-rural
89 American Indian reservation and trust land-Federal Tribe
90 American Indian reservation and trust land-State Tribe
91 Oklahoma Tribal Statistical Area
92 Tribal Designated Statistical Area
93 Alaska Native Village Statistical Area
94 State Designated American Indian Statistical Area
95 Hawaiian Home Land
96 In New England County Metropolitan Area
97 In New England County Metropolitan Area-in central city
98 In New England County Metropolitan Area-not in central city

4. Indicates an iteration (repetition), for the specified summary level, of the data matrices on the summary file for a population or housing characteristic. These iteration fields apply to SF 2 and SF 4 only. See How to Use This File (Chapter 2) for further information.

5. The logical record is the complete record for a geographic entity defined by the summary level, but exclusive of the characteristic iteration. A logical record may have one or more parts (or segments). Each logical record has an assigned sequential integer number within the file. See How to Use This File for further information.

6. See Appendix A, Census 2000 Geographic Terms and Concepts, for definition of this field.

7. Federal Information Processing Standards (FIPS) codes are standards and guidelines that are issued by National Institute of Standards and Technology (NIST) for use in computer systems within the federal government. There are several standards used in Census 2000 data presentation. The Census Bureau maintains the following standards:

FIPS 5, Codes for the identification of the states, the District of Columbia, and the Outlying Areas of the United States, and associated areas
FIPS 6, Counties and equivalent entities of the United States, its possessions, and associated areas
FIPS 9, Congressional Districts of the United States The Office of Management and Budget (OMB) maintains:
FIPS 8, Metropolitan Areas (Including MSAs, CMSAs, PMSAs, and NECMAs) The United States Geological Survey (USGS) maintains:
FIPS 55, Guideline: Codes for Named Populated Places, Primary County Divisions, and Other Locational Entities of the United States, Puerto Rico, and the Outlying Areas General information about FIPS can be found on the Internet at: http://geonames.usgs.gov/

The actual codes assigned to the many FIPS 55 entities can be found at: http://geonames.usgs.gov/fips55.html

8. Codes in unspecified arrangement for U.S. Census Bureau use.

9. For summary levels 256, 257, 258, 259, 289, 291, 292, 293, and 294, the Census Bureau only creates records for federally recognized American Indian reservation and/or offreservation trust land entities, as appropriate for the summary level. No records are created for state reservations, statistical American Indian and Alaska Native areas, and Hawaiian home lands.

10. Federal Information Processing Standards (FIPS) 55 codes are assigned by state. Because American Indian areas can exist in more than one state, multiple FIPS 55 codes exist for the entity. In National products, American Indian areas in multiple states will show a FIPS 55 code of '#####' indicating that multiple FIPS codes exist for this entity.

11. State legislative district codes can have one to three characters including special characters of dashes, slashes, and periods. If the code contains less than three characters, the field is rightjustified with leading blanks.

12. Voting district codes can have one to six characters including special characters of dashes, slashes, and periods. If the code contains less than six characters, the field is right-justified with leading blanks

13. Land area measurement in square meters. The accuracy of the area measurement is limited by the inaccuracy inherent in the mapping of the various boundary features in the TIGER® file. Land area includes intermittent water and glaciers, which appear on census maps and in the TIGER file as hydrographic features. Square miles can be derived by dividing square meters by 2,589,988. See Appendix A, Census 2000 Geographic Terms and Concepts, for definition of this field if it is applicable to this file.

14. Water area measurement in square meters. The accuracy of the area measurement is limited by the inaccuracy inherent in the mapping of the various boundary features in the TIGER File. Water area excludes intermittent water and glaciers, which are treated as land even though they appear on census maps and in the TIGER File as hydrographic features. Square miles can be derived by dividing square meters by 2589988. See Appendix A, Census 2000 Geographic Terms and Concepts, for definition of this field if it is applicable to this file.

15. Name of the lowest-level entity represented by the summary level. In addition to the name of the entity, the name field contains the legal/statistical area description (LSAD) when appropriate, and sometimes contains the state abbreviation. For legal entities, the name is the one reported to the U.S. Census Bureau in the Boundary and Annexation Survey or by other appropriate sources. For statistical entities, the name is determined by the Office of Management and Budget for metropolitan areas. For other areas, the name is determined by the local officials, usually in cooperation with the U.S. Census Bureau. When the summary level represents only part of the area specified in the name, the name usually will have "(pt.)" appended to the name/code terminology to designate that this entry for the entity represents only a part of the total entity.

16. The total number of persons enumerated in the specified summary level as determined in the 100-percent processing.

17. The total number of housing units enumerated in the specified summary level as determined in the 100-percent processing.

18. Latitude in degrees, to six decimal places, of a point within the geographic area represented by the summary level. The decimal point is implied on the file. The character immediately preceding the first digit of the latitude of an internal point identifies the direction (hemisphere): a plus sign (+) indicates the Northern Hemisphere; a minus sign (-) indicates the Southern Hemisphere. See Appendix A, Census 2000 Geographic Terms and Concepts, for definition of this field if it is applicable to this file.

19. Longitude in degrees, to six decimal places, of a point with the geographic area represented by the summary level. The decimal point is implied on the file. The character immediately preceding the first digit of the longitude of an internal point identifies the direction (hemisphere): a plus sign (+) indicates the Eastern Hemisphere; a minus sign (-) indicates the Western Hemisphere. A point on the 180th meridian is assigned to the Western Hemisphere (-180000000). See Appendix A, Census 2000 Geographic Terms and Concepts, for definition of this field if it is applicable to this file.

20. Legal/Statistical Area Description Codes 00 (none)-nation; no description is appended to the name of the entity. 01 (none)-state or state equivalent; no description is appended to the name of the entity. 03 City and Borough-Legal county equivalent in Alaska; "City and Borough" is appended to the name of the entity. 04 Borough-Legal county equivalent in Alaska; "Borough" is appended to the name of the entity. 05 Census area-Statistical county equivalent in Alaska; "Census Area" is appended to the name of the entity. 06 County-Legal county in 48 states; "County" is appended to the name of the entity. 07 District-Legal county equivalent in American Samoa; "District" is appended to the name of the entity. 08 Independent city-legal county equivalent in Maryland, Missouri, and Virginia; "city" is appended to the name of the entity. 09 (none)-Independent city that is a legal county equivalent in Nevada; no description is appended to the name of the entity. 10 Island-Legal county equivalent in the Virgin Islands (U.S.); "Island" is appended to the name of the entity. 11 (none)-Legal county equivalent in American Samoa; "Island" is part of the name and is not appended to the name of the entity. 12 Municipality-Legal county equivalent in Alaska and the Northern Mariana Islands; "Municipality" is appended to the name of the entity. 13 Municipio-Legal county equivalent in Puerto Rico; "Municipio" is appended to the name of the entity. 14 (none)-Legal county equivalent, used at county level for District of Columbia and Guam; no description is appended to the name of the entity. 15 Parish-Legal county equivalent in Louisiana; "Parish" is appended to the name of the entity. 19 Reservation-Legal county subdivision equivalent in Maine and New York (coextensive with all or part of an American Indian reservation); "Reservation" is appended to the name of the entity. 20 Barrio-Legal county subdivision in Puerto Rico; "barrio" is appended to the name of the entity. 21 Borough-legal county subdivision in New York; legal county subdivision equivalent in New Jersey and Pennsylvania; "borough" is appended to the name of the entity. 22 CCD-Census county divisions are statistical area county subdivision equivalents in 21 states; "CCD" is appended to the name of the entity. 23 Census subarea-Statistical area county subdivision equivalent in Alaska; "census subarea" is appended to the name of the entity. 24 Census subdistrict-legal county subdivision equivalent in the Virgin Islands (U.S.); "subdistrict" is appended to the name of the entity. 25 City-Legal county subdivision equivalent in 20 states and the District of Columbia; "city" is appended to the name of the entity. 26 County-Legal county subdivision in American Samoa; "county" is appended to the name of the entity. 27 District-Legal county subdivision in Pennsylvania, Virginia, West Virginia, Guam, and the Northern Mariana Islands; "district" is appended to the name of the entity. The description may refer to an election, magisterial, municipal, or road district. 28 (none)-Legal county subdivision in Louisiana, Maryland, Mississippi, Virginia, West Virginia, and the Northern Mariana Islands; "District" is part of the name and is not appended to the name of the entity. The description may refer to an assessment, election, magisterial, supervisors, parish governing authority, or municipal district. 29 Precinct-Legal county subdivision in Illinois and Nebraska; "precinct" is appended to the name of the entity. The description refers to an election precinct. 30 (none)-Legal county subdivision in Illinois and Nebraska. "Precinct" is part of the name and is not appended to the name of the entity. The description refers to an election precinct. 31 Gore-Legal county subdivision in Maine and Vermont; "gore" is appended to the name of the entity. 32 Grant-Legal county subdivision in New Hampshire and Vermont; "grant" is appended to the name of the entity. 33 Independent city-Legal county subdivision equivalent in Maryland, Missouri, and Virginia; "city" is appended to the name of the entity. 34 (none)-Independent city that is a legal county subdivision equivalent in Nevada. "City" is part of the name and is not appended to the name of the entity. 35 (none)-Legal county subdivision in American Samoa; "Island" is part of the name and is not appended to the name of the entity. 36 Location-Legal county subdivision in New Hampshire; "location" is appended to the name of the entity. 38 (none)-Legal county subdivision equivalent for Arlington County, Virginia; no description is appended to the name of the entity. 39 Plantation-Legal county subdivision in Maine; "plantation" is appended to the name of the entity. 40 (none)-Legal county subdivision not defined; no description is appended to the name of the entity. 41 Barrio-pueblo-Legal county subdivision in Puerto Rico; "barrio-pueblo" is appended to the name of the entity. 42 Purchase-Legal county subdivision in New Hampshire; "purchase" is appended to the name of the entity. 43 Town-Legal county subdivision in eight states, legal county subdivision equivalent in New Jersey, North Carolina, Pennsylvania, and South Dakota. The description "town" is appended to the name of the entity. 44 Township-Legal county subdivision in 16 states; "township" is appended to the name of the entity. 45 (none)-Legal county subdivision in Kansas, Minnesota, Nebraska, and North Carolina; "Township" is part of the name and is not appended to the name of the entity. 46 Unorganized territory-statistical area county subdivision in ten states; "UT" is appended to the name of the entity. 47 Village-Legal county subdivision equivalent in New Jersey, Ohio, South Dakota, and Wisconsin; "village" is appended to the name of the entity. 49 Charter township-Legal county subdivision in Michigan; "charter township" is appended to the name of the entity. 51 Subbarrio-Sub-MCD in Puerto Rico; "subbarrio" is appended to the name of the entity. 53 City and Borough-Incorporated place in Alaska; "city and borough" is appended to the name of the entity. 54 Municipality-Incorporated place in Alaska; "municipality" is appended to the name of the entity. 55 Comunidad-statistical area place in Puerto Rico; "comunidad" is appended to the name of the entity. 56 Borough-Incorporated place in Connecticut, New Jersey, and Pennsylvania; "borough" is appended to the name of the entity. 57 CDP-Census designated places (CDPs) are statistical area places in all 50 states, Guam, Northern Mariana Islands, and the Virgin Islands (U.S.); "CDP" is appended to the name of the entity. 58 City-Incorporated place in 49 states (not Hawaii) and the District of Columbia; "city" is appended to the name of the entity. 59 (none)-Incorporated place having no legal description in three states; place equivalent in five states. Some places have a unique description, no description, or description included with the name, as follows: Athens-Clarke County (balance) (Georgia): "Unified Government of Athens-Clarke County" Augusta-Richmond County (balance) (Georgia): (no description appended) Anaconda-Deer Lodge County (Montana): incorporated municipality Butte-Silver Bow (balance) (Montana): (no description appended) Carson City, Nevada: (no description appended) Columbus city (balance) (Georgia) Indianapolis city (balance) (Indiana): (no description appended) Lexington-Fayette (Kentucky): Urban County Government Nashville and Davidson County (balance) (Tennessee): "Metropolitan Government of Nashville and Davidson County" 60 Town-Incorporated place in 30 states and the Virgin Islands (U.S.); "town" is appended to the name of the entity. 61 Village-Incorporated place in 20 states and traditional place in American Samoa; "village" is appended to the name of the entity. 62 Zona urbana-Statistical area place in Puerto Rico; "zona urbana" is appended to the name of the entity. 65 City-Consolidated city in Connecticut, Georgia, and Indiana; "city" is appended to the name of the entity. 66 (none)-Some consolidated cities have unique descriptions or no descriptions, as follows: Athens-Clarke County (Georgia): "Unified Government of Athens-Clarke County" Augusta-Richmond County (Georgia): (no description appended) Butte-Silver Bow (Montana): (no description appended) Nashville-Davidson (Tennessee): "Metropolitan Government of Nashville and Davidson County" 68 Region-Census region; "Region" is appended to the name of the entity. 69 Division-Census division; "Division" is appended to the name of the entity. 70 Urban growth area (UGA)-Only in Oregon; "urban growth area" is appended to the name of the entity. 71 CMSA-Consolidated metropolitan statistical area; "CMSA" is appended to the name of the entity. 72 MSA-Metropolitan statistical area; "MSA" is appended to the name of the entity. 73 PMSA-Primary metropolitan statistical area; "PMSA" is appended to the name of the entity. 74 NECMA-New England county metropolitan area; "NECMA" is appended to the name of the entity. 75 Urbanized area (UA); "Urbanized Area" is appended to the name of the entity. 76 Urban cluster (UC); "Urban Cluster" is appended to the name of the entity. 77 Alaska Native Regional Corporation (ANRC); "Alaska Native Regional Corporation" is appended to the name of the entity. 78 Hawaiian home land; "Home Land" is appended to the name of the entity. 79 Alaska Native village statistical area (ANVSA); "ANVSA" is appended to the name of the entity. 80 Tribal designated statistical area (TDSA); "TDSA" is appended to the name of the entity. 81 Colony-American Indian reservation; "Colony" is appended to the name of the entity. 82 Community-American Indian reservation; "Community" is appended to the name of the entity. 83 Joint use area-American Indian reservation equivalent; "joint use area" is appended to the name of the entity. 84 Pueblo-American Indian reservation; "Pueblo" is appended to the name of the entity. 85 Rancheria-American Indian reservation; "Rancheria" is appended to the name of the entity. 86 Reservation-American Indian reservation; "Reservation" is appended to the name of the entity. 87 Reserve-American Indian reservation; "Reserve" is appended to the name of the entity. 88 Oklahoma tribal statistical area (OTSA); "OTSA" is appended to the name of the entity. 89 Trust land only entity-American Indian reservation equivalent; "Trust Land" is appended to the name of the entity. 90 Joint use area OTSA-Joint use area of Oklahoma tribal statistical area (OTSA); "joint use OTSA" is appended to the name of the entity. 91 Ranch-American Indian reservation; "Ranch" is appended to the name of the entity. 92 State designated American Indian statistical area (SDAISA); "SDAISA" is appended to the name of the entity. 93 Indian village-American Indian reservation; "Indian Village" is appended to the name of the entity. 94 Village-American Indian reservation; "Village" is appended to the name of the entity. 95 Indian community-American Indian reservation; "Indian Community" is appended to the name of the entity. T1 (none)-American Indian tribal subdivision; "Area" is part of the name and is not appended to the name of the entity. T2 Chapter-American Indian tribal subdivision; "Chapter" is appended to the name of the entity. T3 Community-American Indian tribal subdivision; "Community" is appended to the name of the entity. T4 District-American Indian tribal subdivision; "District" is appended to the name of the entity. T5 (none)-American Indian tribal subdivision; "District" is part of the name and is not appended to the name of the entity. T6 Segment-American Indian tribal subdivision; "Segment" is appended to the name of the entity. T7 Tract-American Indian tribal subdivision; "Tract" is appended to the name of the entity. T8 Agency-American Indian tribal subdivision; "Agency" is appended to the name of the entity. T9 Parcel-American Indian tribal subdivision; "Parcel" is appended to the name of the entity. T0 Precinct-American Indian tribal subdivision; "Precinct" is appended to the name of the entity. U1 Region-American Indian tribal subdivision; "Region" is appended to the name of the entity. U2 Township-American Indian tribal subdivision; "Township" is appended to the name of the entity. U3 Village-American Indian tribal subdivision; "Village" is appended to the name of the entity. C1 Congressional district; "Congressional District (at Large)" is appended to the name of the entity. C2 Congressional district; "Congressional District" is appended to the name of the entity. C3 Congressional district; "Resident Commissioner District (at Large)" is appended to the name of the entity. C4 Congressional district; "Delegate District (at Large)" is appended to the name of the entity. C5 Congressional district; "No Representative" is appended to the name of the entity. LL State legislative district-lower chamber; "State House District" is prefixed to the name of the entity. No legislative districts exist in the following states/state equivalents: Arkansas, California, District of Columbia, Florida, Hawaii, Kentucky, Maine, Maryland, Minnesota, Montana, Nebraska, New Hampshire, Puerto Rico, Texas, and the Island Areas. LU State legislative district-upper chamber; "State Senate District" is prefixed to the name of the entity. No legislative districts exist in the following states/state equivalents: Arkansas, California, District of Columbia, Florida, Hawaii, Kentucky, Maine, Maryland, Minnesota, Montana, Puerto Rico, Texas, and the Island Areas. V0 (none)-Descriptions, such as "Precinct" and "Voting District", are part of the name and are not prefixed or appended to the name of the entity. No 2000 voting districts exist in the following states/state equivalents: California, Florida, Kentucky, Montana, North Dakota, Ohio, Oregon, Wisconsin, and the Island Areas. V1 Voting district; "Voting District" is prefixed to the name of the entity. No 2000 voting districts exist in the following states/state equivalents: California, Florida, Kentucky, Montana, North Dakota, Ohio, Oregon, Wisconsin and the Island Areas. V2 Voting district; "Voting District" is appended to the name of the entity. No 2000 voting districts exist in the following states/state equivalents: California, Florida, Kentucky, Montana, North Dakota, Ohio, Oregon, Wisconsin, and the Island Areas. P1 (none)-1% public-use microdata file; no description is appended to the name of the entity. P5 (none)-5% public-use microdata file; no description is appended to the name of the entity. PK (none)-Park landmark; no description is appended to the name of the entity. S1 (none)-Elementary school district; no description is appended to the name of the entity. S2 (none)-Secondary school district; no description is appended to the name of the entity. S3 (none)-Unitary school district; no description is appended to the name of the entity. S4 (none)-Administrative school area in Hawaii and New York city only; no description is appended to the name of the entity. S5 (none)-Bureau of Indian Affairs (BIA) school area; no description is appended to the name of the entity. S6 (none)-Department of Defense (DOD) school area; no description is appended to the name of the entity. S7 (none)-Areas not coded to a school district; no description is appended to the name of the entity. TZ (none)-Traffic analysis zone; no description is appended to the name of the entity. Z3 ZIP Code® tabulation area (3-Digit); "3-Digit ZCTA" is appended to the name of the entity. Z5 ZIP Code® tabulation area (5-Digit); "5-Digit ZCTA" is appended to the name of the entity. Five-Digit ZCTAs may include codes ending in "XX" and "HH".

Table (Matrix) Section
[Please refer to the Summary File 3 Codebook here]