The U.S. constitution mandates that a population census be
carried out every 10 years. The most recent census taken April 1,
2000, counted 281,421,906 people in the 50 states and the District
of Columbia. For Census 2000, a short-form with questions on age,
sex, race and ethnicity were asked of every person and household.
See the final response rates to the Census 2000 for all Indiana
counties and townships at http://www.census.gov/dmd/www/response/disp-fro.18.txt.
For Census 2000, there was a revision to the question on
race. Specifically, respondents had the option of selecting one or
more categories to indicate their racial identities. The six single
race categories are presented at this website (i.e. White, Black or
African-American, American Indian and Alaska Native, Asian, Native
Hawaiian and Other Pacific Islander and some other race) and one
multiple race category (i.e. two or more races).
The Census
Bureau defines ethnicity as the heritage, nationality group,
lineage, or country of birth of the person or the person's parents
or ancestors before their arrival in the United States. The ethnic
categories used are Hispanic or Latino and Not Hispanic or Latino.
Note that Hispanics or Latinos can be of any race. A subcategory of
Not Hispanic or Latino presented by the Census Bureau and at this
website is White alone.
The age categories used at this
website (0-17, 18-24, 25-34, 35-44, 45-65 and 65+) were designated
by the Substance Abuse and Mental Health Services Administration to
assist in their assessment of treatment and prevention needs.
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