Table 4. American Indian and Alaska Native Alone Population in Households and Group Quarters by Sex and Selected Age Groups, for the United States: 2000 Source: U.S. Census Bureau Internet Release date: March 20, 2001 NOTE: Data not adjusted based on the Accuracy and Coverage Evaluation. For information on confidentiality protection, sampling error, nonsampling error, and definitions, see http://factfinder.census.gov/home/en/datanotes/expplu.html. For definitions of household and group quarters population, see below. ----------------------------------------------------------------------------------------------------------------------------- | | | In group quarters | | |------------------------------------------------------------------------- | | | | Percent of total | | | | | | population in | Institutionalized | Noninstitutionalized Subject | Total | In households | Total | group quarters | population | population ----------------------------------------------------------------------------------------------------------------------------- Both sexes 2,475,956 2,400,916 75,040 3.0 40,465 34,575 Under 18 years 840,312 831,742 8,570 1.0 4,151 4,419 18 to 29 years 474,474 444,128 30,346 6.4 12,061 18,285 30 to 49 years 736,708 712,055 24,653 3.3 16,395 8,258 50 years or more 424,462 412,991 11,471 2.7 7,858 3,613 Males 1,233,982 1,181,385 52,597 4.3 31,681 20,916 Under 18 years 427,912 422,756 5,156 1.2 2,793 2,363 18 to 29 years 243,868 222,469 21,399 8.8 10,632 10,767 30 to 49 years 363,863 344,437 19,426 5.3 13,867 5,559 50 years or more 198,339 191,723 6,616 3.3 4,389 2,227 Females 1,241,974 1,219,531 22,443 1.8 8,784 13,659 Under 18 years 412,400 408,986 3,414 0.8 1,358 2,056 18 to 29 years 230,606 221,659 8,947 3.9 1,429 7,518 30 to 49 years 372,845 367,618 5,227 1.4 2,528 2,699 50 years or more 226,123 221,268 4,855 2.1 3,469 1,386 ----------------------------------------------------------------------------------------------------------------------------- NOTE: For discussion of race and Hispanic origin concepts used in Census 2000, please see U.S. Census Bureau, Census 2000 Brief, "Overview of Race and Hispanic Origin: 2000," March 2001, CENBR/01-1, http://www.census.gov/prod/2001pubs/cenbr01-1.pdf. Source: U.S. Census Bureau, Census 2000, unpublished tables. Household -- A household includes all people who occupy a housing unit. People not living in households are classified as living in group quarters. Group Quarters Population -- The group quarters population includes all people not living in households. Two general categories of people in group quarters are recognized: 1) the institutionalized population which includes people under formally authorized, supervised care or custody in institutions at the time of enumeration (such as correctional institutions, nursing homes, and juvenile institutions) and 2) the noninstitutionalized population which includes all people who live in group quarters other than institutions (such as college dormitories, military quarters, and group homes).