Data Dictionary: ACS 2012 (1-Year Estimates)
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Data Source: Social Explorer; U.S. Census Bureau
Table: T138. Ancestry - Place of Origin (Total Categories Tallied) For People With One Or More Ancestry Categories Reported [108]
Universe: Total ancestry categories tallied for people with one or more ancestry categories reported
Table Details
T138. Ancestry - Place of Origin (Total Categories Tallied) For People With One Or More Ancestry Categories Reported
Universe: Total ancestry categories tallied for people with one or more ancestry categories reported
Variable Label
T138_001
T138_002
T138_003
T138_004
T138_005
T138_006
T138_007
T138_008
T138_009
T138_010
T138_011
T138_012
T138_013
T138_014
T138_015
T138_016
T138_017
T138_018
T138_019
T138_020
T138_021
T138_022
T138_023
T138_024
T138_025
T138_026
T138_027
T138_028
T138_029
T138_030
T138_031
T138_032
T138_033
T138_034
T138_035
T138_036
T138_037
T138_038
T138_039
T138_040
T138_041
T138_042
T138_043
T138_044
T138_045
T138_046
T138_047
T138_048
T138_049
T138_050
T138_051
T138_052
T138_053
T138_054
T138_055
T138_056
T138_057
T138_058
T138_059
T138_060
T138_061
T138_062
T138_063
T138_064
T138_065
T138_066
T138_067
T138_068
T138_069
T138_070
T138_071
T138_072
T138_073
T138_074
T138_075
T138_076
T138_077
T138_078
T138_079
T138_080
T138_081
T138_082
T138_083
T138_084
T138_085
T138_086
T138_087
T138_088
T138_089
T138_090
T138_091
T138_092
T138_093
T138_094
T138_095
T138_096
T138_097
T138_098
T138_099
T138_100
T138_101
T138_102
T138_103
T138_104
T138_105
T138_106
T138_107
T138_108
Relevant Documentation:
Total Ancestries Reported
Includes the total number of ancestries reported and coded. If a person reported a multiple ancestry such as "German Danish," that response was counted twice in the tabulations--once in the German category and again in the Danish category. Also, if a person reported two different types of German ancestry, such as "Bavarian Hamburger," they would be counted twice in the German category on this type of table. Thus, each line of this table represents the number of reports for that ancestry type, not the number of people (although sometimes that number is the same). Likewise, the sum of the estimates in each of the rows in this type of presentation is not the total population but the total of all responses. The German line in this table is interpreted as "The number of times a German ancestry was reported."

Question/Concept History

The question on ancestry has been asked on the American Community Survey since 1996. The question wording has never changed, although placement of the question changed slightly. Also, the examples listed below the write-in lines changed in 1999, but have remained the same since then.

The question on ancestry was first asked in the 1980 Census. It replaced the question on parental place of birth, in order to include ancestral heritage for people whose families have been in the U.S. for more than two generations. The question also was asked in the 1990 Census and Census 2000.

From 1996 to 1999, the ACS editing system used answers to the race and place of birth questions to clarify ancestry responses of "Indian," where possible. In 2000 and subsequent years, the editing was expanded to aid interpretation of two-word ancestries, such as "Black Irish."

Limitation of the Data

Although some experts consider religious affiliation a component of ethnic identity, the ancestry question was not designed to collect any information concerning religion. The Census Bureau is prohibited from collecting information on religion. Thus, if a religion was given as an answer to the ancestry question, it was coded as an "Other" response.

Beginning in 2006, the population in group quarters (GQ) was included in the ACS. Some types of GQ populations may have ancestry distributions that are different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the ancestry distribution. This is particularly true for areas with a substantial GQ population.

Comparability

The data are comparable to Census 2000, as long as some caution is used. Response rates to the ancestry question are generally higher for ACS than for Census, and data are never generated for missing ancestry responses, therefore some ancestry groups are reported more heavily in ACS than in Census 2000.

In 2010, there were two major changes to the coding rules. If up to two ancestries were listed, both were coded, even if one was the specific of the other or if one was American. Also, race groups and Hispanic groups were coded with the same priority as non-race andnon-Hispanic groups. For example, "Haitian Black French" would previously have been coded Haitian and French, but now would be coded Haitian and Black.

See the 2012 Code List on the ACS website (http://www.census.gov) for Ancestry Code List.