Documentation: Census 1980
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Publisher: U.S. Census Bureau
Survey: Census 1980
Document: Summary Tape File 1
citation:
Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1980 [United States]: Summary Tape File 1a [Computer file]. ICPSR version. Washington, DC: U.S. Dept. of Commerce, Bureau of the Census [producer], 1982. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2002.
Summary Tape File 1
General
ICPSR Inter-university Consortium for Political and Social Research

Codebook for All Parts except Puerto Rico and Outlying AreasUnited States Department of CommerceBureau of the CensusICPSR 7941Census of Population and Housing, 1980 [United States]: Summary Tape File 1A(ICPSR 7941)Principal InvestigatorUnited States Department of Commerce Bureau of the CensusFirst ICPSR VersionSeptember 2002Inter-university Consortium forPolitical and Social ResearchP.O. Box 1248Ann Arbor, Michigan 48106

Bibliographic Citation
Publications based on ICPSR data collections should acknowledge those sources by means of bibliographic citations. To ensure that such source attributions are captured for social science bibliographic utilities, citations must appear in footnotes or in the reference section of publications. The bibliographic citation for this data collection is: U.S. Dept. of Commerce, Bureau of the Census. Census of Population and Housing, 1980 [United States]: Summary Tape File 1A [Computer file]. ICPSR version. Washington, DC: U.S. Dept. of Commerce, Bureau of the Census [producer], 1982. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2002.

Request for Information on Use of ICPSR Resources
To provide funding agencies with essential information about use of archival resources and to facilitate the exchange of information about ICPSR participants' research activities, users of ICPSR data are requested to send to ICPSR bibliographic citations for each completed manuscript or thesis abstract. Please indicate in a cover letter which data were used.

Data Disclaimer
The original collector of the data, ICPSR, and the relevant funding agency bear no responsibility for uses of this collection or for interpretations or inferences based upon such uses.

Data Collection Description
United States Department of Commerce. Bureau of the Census; Census of Population and Housing, 1980 [United States]: Summary Tape File 1A (ICPSR 7941)

Summary: Summary Tape File (STF) 1 consists of four sets of computer-readable data files containing detailed tabulations of the nation's population and housing characteristics produced from the 1980 Census. This series is comprised of STF 1A, STF 1B, STF 1C, and STF 1D. All files in the STF 1 series are identical, containing 321 substantive data variables organized in the form of 59 "tables," as well as standard geographic identification variables. All of the data items contained in the STF 1 files were tabulated from the "complete count" or "100-percent" questions included on the 1980 Census questionnaire. All four groups of files within the STF 1 series have identical record formats and technical characteristics and differ only in the types of geographical areas for which the summarized data items are presented. STF 1A provides summaries for state or state equivalent, county or county equivalent, minor civil division/census county division (MCD/CCD), place or place segment within MCD/CCD or remainder of MCD/CCD, census tract or block numbering area (BNA) or untracted segment within place, place segment or remainder or MCD/CCD, and block group (BG) or BG segment or enumeration district (ED). This file contains 57 data files, one for each state, the District of Columbia, Puerto Rico, and the United States possessions, which include American Samoa, Guam, Northern Mariana Islands, the Trust Territory of the Pacific Islands, and the Virgin Islands. The information on the United States possessions is similar but not identical to the other data and is documented in a separate codebook. Puerto Rico is also documented by a separate codebook.

Universe: All persons and housing units in the United States.

Note: (1) Records in Parts 1-56 consist of 3,276 characters and have two record segments (physical records) of 1,638 characters each. Records in Part 72 consist of 2,700 characters and have two record segments of 1,638 characters each. Records in Parts 60, 66, 69, 75, and 78 consist of 3,438 characters and have two record segments of 1,719 characters each.

(2) SAS and SPSS data definition statements are for all parts except for Puerto Rico and outlying areas.

(3) The codebooks are provided by ICPSR as Portable Document Format (PDF) files. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided on the ICPSR Web site.

Extent of Collection: 57 data files + machine-readable documentation (PDF) + SAS data definition statements + SPSS data definition statements.

Extent of Processing: SCAN/ REFORM.DOC/ DDEF. ICPSR

Data Format: Logical Record Length with SAS and SPSS data definition statements. Parts: Part numbers correspond to FIPS codes of states File Structure: rectangular Cases: varies by file.Variables: approx. 321 Record Length: 1,638 Records Per Case: 2 Part 81: Codebook for All Parts except Puerto Rico and Outlying AreasCensus of Population and Housing, 1980: Summary Tape File 1 Technical Documentation Washington, D.C.; 1981.

Note: The 1980 census figures are subject to change, pending the outcome of litigation. Counts of the population by race and Spanish origin in this file are provisional. Final counts will be determined after the sample data have been processed. U.S. Department of Commerce Malcolm Baldrige, Secretary Joseph R. Wright, Jr., Deputy Secretary William A. Cox, Acting Chief Economist Bureau of the Census Daniel B. Levine, Acting Director Bureau of the Census Daniel B. Levine, Acting Director Data User Services Division Michael G. Garland, Chief Marshall L. Turner, Jr., Assistant Chief for User Services

Acknowledgments
This documentation was prepared within the Data Access and Use Staff, under the direction of James P. Curry, Chief, and Barbara J. Aldrich, Chief of its Technical Information Section. Annette Ralston was the coordinator for this file assisted by Joann Sutton. It was partially adapted from materials prepared by Richard Warren and David Silver of Decennial Census Division and staff members of Data User Services Division. Support was provided through content review by staff members from Decennial Census Division, Geography Division, Housing Division, Population Division, and Statistical Methods Division.The files should be cited as follows:

  • Census of Population and Housing, 1980: Summary Tape File 1A (Name of State) [machine-readable data file] / prepared by the Bureau of the Census. --Washington: The Bureau [producer and distributor], 1981.
  • Census of Population and Housing, 1980: Summary Tape File 1B (Name of State) [machine-readable data file 1 / prepared by the Bureau of the Census. --Washington: The Bureau [producer and distributor], 1981.
  • Census of Population and Housing, 1980: Summary Tape File 1C [machine-readable data file] / prepared by the Bureau of the Census. --Washington: The Bureau [producer and distributor], 1981.
This technical documentation should be cited as follows:

Census of Population and Housing, 1980: Summary Tape File 1 Technical Documentation / prepared by the Data User Services Division, Bureau of the Census. --Washington: The Bureau, 1981.

For additional information concerning the files, contact Data User Services Division, Customer Services (Tapes), Bureau of the Census, Washington, D.C. Phone: (301) 449-1600. For additional information concerning the technical documentation contact Data User Services Division, Data Access and Use Staff, Bureau of the Census, Washington, D.C. 20233. Phone: (301) 449-1667. For additional information concerning the subject matter of the file, contact Population Division, (301) 763-7962, or Housing Division, (301) 763-2873, Bureau of the Census, Washington, D.C. 20233.

User Notes
This section will contain information relevant to Summary Tape File 1 which becomes available after the file is released. User Notes will be sent to all users who (1) purchased their files (or technical documentation) from the Census Bureau and (2) returned the original copy of the coupon located following the front cover of this documentation. Census of Population and Housing, 1980: Summary Tape File 1

User Note No. 1

A blank indicates not applicable or the total summary for a geographic area which is partially blocked. A code of 1 indicates a summary for the blocked portion of a geographic area which is partially blocked or a total summary for a geographic area which is completely blocked. An additional correction on updated page 59 indicates a code of F appears for a census designated place, (CDP) of 1,000 or more, not in an urbanized area (UA) and for a CDP in a UA with a central city of 50,000 or less. Census of Population-and Housing, 1980: Summary Tape File 1
User Note No. 2
Table 44 (Median contract rent) located in positions 2888-2896 is incorrect and should not be used. Users who need median rent data can calculate it from the distribution in Table 43. This problem is unique to STF 1B. Table 44 on STP 1A contains the correct data. This median can be calculated by CENSPAC users using the commands shown in the CENSPAC Report Generation Guide available without charge from Systems and Programming Branch, Data User Services Division, Bureau of the Census, Washington, D.C. 20233. For those users unfamiliar with the algorithm for calculating a median from grouped data, the following is provided:

Computing a Median From Grouped Data



= the lower limit of the class containing the middle, or N/2th item

N = the sum of all frequencies

= the sum of the frequencies in all classes preceding the class containing the N/2th item

= the frequency of the class containing the N/2th

item i = the size of the class interval containing the N/2th item

Example: Computing Median Contract Rent from Table 43-STF 1B

Universe: Specified Renter-Occupied Housing Units Paying Cash Rent

Cash Rent Specified Renter Occupied H.U's (fx) Cumulative frequency
Less than $50 5 5
$50 to $99 15 20
$100 to $119 28 48
$120 to $139 42 90
$140 to $159 63 153
$150 to $159 59 212
$160 to $169 68 280
$170 to $199 71 351
$200 to $249 55 406
$250 to $299 40 446
$300 to $399 25 471
$400 to $499 18 489
$500 or more 0 489
No cash rent 2  


Note: The 'No cash rent' class is not used as it falls outside the universe. The N/2th, or middle housing unit falls within the class interval $160 to $169.



Median = $160 + (.478) 10

Median = $164.78, or rounded - $165

Census of Population and Housing, 1980: Summary Tape File 1.
User Note No. 3.
The following codes are available on STF 1 to assist users in identifying political/statistical areas below the State level. These codes are located in position 29.

Code Political/Statistical Area Description
A County
B Borough
C City
D District
E Consolidated government
F Census county division
G Core
H Independent city
I Indian reservation
J Unorganized territory
K Parish
L Plantation
M Location
N (None)
O Precinct
P Quadrant
Q Purchase
R Township
S Town
T Census designated place
U Village
V Ward
W Grant
X Census area
Z Census subarea
1 Island
2 Census sub district
3 Municipio
4 Barrio
5 Ciudad
6 Pueblo
7 Aldea
8 Zona urbana
9 Municipality


Census of Population and Housing, 1980: Summary Tape File 1.
User Note No. 4.
This note applies to STF 1C only. There is an error in Table 35 (Persons per unit) on summaries for large geographic areas. Summary levels the records containing affected include 01 (United States), 02 (Regions) and Divisions 2, 3, and 5 of summary level 03 (Divisions).

Users who need the count of persons per unit for any of the above areas may calculate it by the method shown below:

Total persons in occupied housing units (Table 36, Cell 1). Total occupied housing units (Table 26, Cell 1)

Addendum To Census of Population and Housing, 1980: Summary Tape File 1.

User Note No. 1. Subject: Tracts Split by Standard Metropolitan Statistical Areas (SMSA'S)

There are currently two instances in New England in which a tract is split by an SMSA because some of its minor civil divisions (MCD's) are inside an SMSA and some are not. This occurs because it was not known at the time the tracts were established which MCD's would be included within new SMSA's. The two instances are listed below. Maine - Tract 0090 in Penobscot County (019) has two MCD's which are in the Bangor SMSA and one which is outside the SMSA. Vermont - Tract 0035 in Chittenden County (007) has three MCD's which are in the Burlington SMSA and two which are outside the SMSA.