Feature Catalog for the 2025 American Indian Tribal Subdivision (AITS) for United States Cartographic Boundary File American Indian Tribal Subdivisions (AITS) 2026-05 2026-05 eng; USA utf8 U.S. Department of Commerce, U.S. Census Bureau, Geography Division 301-763-1128 301-763-4710 4600 Silver Hill Road, Stop 7400 Washington DC 20233-7400 United States geo.geography@census.gov pointOfContact cb_2025_us_aitsn_500k.shp American Indian Tribal Subdivision (AITS) (national) false AIANNHCE Current American Indian/Alaska Native/Native Hawaiian area census code 0001 to 4799 Federally recognized legal American Indian area 5500 to 5899 Oklahoma Tribal Statistical Area TRSUBCE Current American Indian tribal subdivision census code 001 to 998 Current tribal subdivision census code TRSUBNS Current American Indian tribal subdivision Geographic Names Information System (GNIS) code INCITS 446:2008 (Geographic Names Information System (GNIS)), Identifying Attributes for Named Physical and Cultural Geographic Features (Except Roads and Highways) of the United States, Its Territories, Outlying Areas, and Freely Associated Areas, and the Waters of the Same to the Limit of the Twelve-Mile Statutory Zone GEOIDFQ American FactFinder summary level code + geovariant code + '00US' + GEOID Fully Qualified GEOID GEOID American Indian tribal subdivision identifier; a concatenation of Current American Indian/Alaska Native/Native Hawaiian area census code and American Indian tribal subdivision census code The GEOID attribute is a concatenation of the Current American Indian/Alaska Native/Native Hawaiian Area census code ("AIANNHCE" attribute) followed by the tribal subdivision ("TRSUBCE" attribute) code. No spaces are allowed between the two codes. NAME Current American Indian tribal subdivision name Values for this attribute are composed of a set of American Indian tribal subdivision names. As such, they do not exist in a known, predefined set. NAMELSAD Current name and the translated legal/statistical area description for American Indian tribal subdivision Current name and the translated legal/statistical area description for American Indian tribal subdivision LSAD Current legal/statistical area description code for American Indian tribal subdivision 00 Blank 07 District (suffix) 28 District (prefix) 82 Community (suffix) T1 Area (suffix) T2 Chapter (suffix) T3 Segment (suffix) TA Administrative Area (suffix) TB Addition (suffix) TC County District (prefix) ALAND Current land area (square meters) 0 9,999,999,999,999 AWATER Current water area (square meters) 0 9,999,999,999,999