Data Dictionary: ACS 2006 (1-Year Estimates)
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Data Source: Social Explorer; U.S. Census Bureau
Table: T134. Ancestry - Place of Origin (Second Ancestry Reported) [110]
Universe: Total population
Table Details
T134. Ancestry - Place of Origin (Second Ancestry Reported)
Universe: Total population
Variable Label
T134_001
T134_002
T134_003
T134_004
T134_005
T134_006
T134_007
T134_008
T134_009
T134_010
T134_011
T134_012
T134_013
T134_014
T134_015
T134_016
T134_017
T134_018
T134_019
T134_020
T134_021
T134_022
T134_023
T134_024
T134_025
T134_026
T134_027
T134_028
T134_029
T134_030
T134_031
T134_032
T134_033
T134_034
T134_035
T134_036
T134_037
T134_038
T134_039
T134_040
T134_041
T134_042
T134_043
T134_044
T134_045
T134_046
T134_047
T134_048
T134_049
T134_050
T134_051
T134_052
T134_053
T134_054
T134_055
T134_056
T134_057
T134_058
T134_059
T134_060
T134_061
T134_062
T134_063
T134_064
T134_065
T134_066
T134_067
T134_068
T134_069
T134_070
T134_071
T134_072
T134_073
T134_074
T134_075
T134_076
T134_077
T134_078
T134_079
T134_080
T134_081
T134_082
T134_083
T134_084
T134_085
T134_086
T134_087
T134_088
T134_089
T134_090
T134_091
T134_092
T134_093
T134_094
T134_095
T134_096
T134_097
T134_098
T134_099
T134_100
T134_101
T134_102
T134_103
T134_104
T134_105
T134_106
T134_107
T134_108
T134_109
T134_110
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2006 Summary File: Technical Documentation.
 
Ancestry
The data on ancestry were derived from answers to Question 12. The question was based on self-identification; the data on ancestry represent self-classification by people according to the ancestry group(s) with which they most closely identify. Ancestry refers to a person's ethnic origin or descent, "roots," or heritage; or the place of birth of the person, the person's parents, or ancestors before their arrival in the United States. Some ethnic identities, such as "Egyptian" or "Polish" can be traced to geographic areas outside the United States, while other ethnicities such as "Pennsylvania German" or "Cajun" evolved in the United States.
The intent of the ancestry question was not to measure the degree of attachment the respondent had to a particular ethnicity, but simply to establish that the respondent had a connection to and self-identified with a particular ethnic group. For example, a response of "Irish" might reflect total involvement in an Irish community or only a memory of ancestors several generations removed from the individual.
The Census Bureau coded the responses into a numeric representation of over 1,000 categories. To do so, responses initially were processed through an automated coding system; then, those that were not automatically assigned a code were coded by individuals trained in coding ancestry responses. The code list reflects the results of the Census Bureau's own research and consultations with many ethnic experts. Many decisions were made to determine the classification of responses. These decisions affected the grouping of the tabulated data. For example, the "Indonesian" category includes the responses of "Indonesian," "Celebesian," "Moluccan," and a number of other responses.
The ancestry question allowed respondents to report one or more ancestry groups. Generally, only the first two responses reported were coded. If a response was in terms of a dual ancestry, for example, "Irish English," the person was assigned two codes, in this case one for Irish and another for English. However, in certain cases, multiple responses such as "French Canadian," "Scotch-Irish," "Greek Cypriot," and "Black Dutch" were assigned a single code reflecting their status as unique groups. If a person reported one of these unique groups in addition to another group, for example, "Scotch-Irish English," resulting in three terms, that person received one code for the unique group (Scotch-Irish) and another one for the remaining group (English). If a person reported "English Irish French," only English and Irish were coded. For certain combinations of ancestries where the ancestry group is a part of another, such as "German Bavarian," the responses were coded as a single ancestry using the more detailed group (Bavarian). Also, responses such as "Polish-American" or "Italian-American" were coded and tabulated as a single entry (Polish or Italian).
The Census Bureau accepted "American" as a unique ethnicity if it was given alone, with an ambiguous response, or with state names. If the respondent listed any other ethnic identity such as "Italian American," generally the "American" portion of the response was not coded. However, distinct groups such as "American Indian," "Mexican American," and "African American" were coded and identified separately because they represented groups who may consider themselves different from those who reported as "Indian," "Mexican," or "African," respectively.
In all tabulations, when respondents provided an unclassifiable ethnic identity (for example, "multi-national," "adopted," or "I have no idea"), the answer was included in "Unclassified or not reported."
The tabulations on ancestry use two types of data presentations - one used total people as the base, and the other used total responses as the base. The following are categories shown in the two data presentations.
Presentations Based on People
People Reporting Single Ancestry
Includes all people who reported only one ethnic group such as "German." Also included in this category are people with multiple-term responses such as "Scotch-Irish" who are assigned a single code because they represent one distinct group.
People Reporting Multiple Ancestries
Includes all people who reported more than one group, such as "German" and "Irish" and were assigned two ancestry codes.
People Reporting Ancestry
Includes all people who reported each ancestry, regardless of whether it was their first or second ancestry, or part of a single or multiple response.
Presentations Based on Responses
First Ancestry Reported
Includes the first response of all people who reported at least one codeable entry. For example, in this category, the count for Danish would include all those who reported only Danish and those who reported Danish first and then some other group.
Second Ancestry Reported
Includes the second response of all people who reported a multiple ancestry. Thus, the count for Danish in this category includes all people who reported Danish as the second response, regardless of the first response provided.
Total Ancestries Reported
Includes the total number of ancestries reported and coded. If a person reported a multiple ancestry such as "French Danish," that response was counted twice in the tabulations--once in the French category and again in the Danish category. Thus, the sum of the counts in this type of presentation is not the total population but the total of all responses.
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) is 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.
Question/Concept History
The 1996-1999 American Community Survey system for coding required consistency checks with answers to other questions when the write-in response to ancestry was "Indian." The coding in 2000 and subsequent years involved consistency checks for those respondents writing "Indian" and for two-word ancestries containing the word "Black," such as "Black Irish." Since 1999, the list of examples differed from those used for the 1996-1998 ACS.
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2006 Summary File: Technical Documentation.
 
Second Ancestry Reported
Includes the second response of all people who reported a multiple ancestry. Thus, the count for Danish in this category includes all people who reported Danish as the second response, regardless of the first response provided.