Address register area (ARA) A geographic entity established by the Census Bureau for 1990 census data collection purposes. It usually consists of a census tract or block group. See also enumeration district, tape address register.
Adjacent A term descriptive of geographic entities that are next to each other and share all or a portion of a common boundary. See also conjoint, contiguous, jump, jump corridor, merger.
Administrative entity A geographic area, usually with legally defined boundaries but often without elected officials, created to administer elections and other governmental functions. Administrative areas include school districts, voting districts, ZIP Codes, and nonfunctioning MCDs such as election precincts, election districts, and assessment districts. See also governmental unit, legal entity, minor civil division, statistical entity.
Agriculture (census) See census of agriculture.
AIANA See American Indian and Alaska Native area.
AIANA code A four-digit number assigned by the Census Bureau to identify AIANAs for data processing and tabulation during the 1990 census; AIANA codes range from 0001 through 4989. A five-digit FIPS code used to identify each AIANA (or portion of an AIANA) within a State. See also Geographic Identification Code Scheme, Federal Information Processing Standards.
Alaska Native For decennial census purposes, includes people who report their race as Aleut or Eskimo as well as those who report race entries such as Alutiiq, Egegik, Pribilovian, Arctic Slope, Inupiat, and Yupik.
Alaska Native Claims Settlement Act (ANCSA) Legislation enacted in 1972 establishing 13 ANRCs to conduct business and nonprofit activities by and for Alaska Natives. See also Alaska Native Regional Corporation, Alaska Native village, Alaska Native village statistical area.
