Mapping tribal and specialized geographies on data.census.gov and TidalWeb

Jul 29, 2026

Census staff explained legal vs statistical tribal geographies (reservations, off-reservation trust lands, tribal subdivisions, OTSAs) and recommended TidalWeb for map-only exploration; they demonstrated Fort Peck and Navajo Nation examples.

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Mendez distinguished legal and statistical American Indian, Alaska Native and Native Hawaiian areas and cautioned users to pick appropriate tables when seeking race data. "The legal entities include federally recognized American Indian reservations and off reservation trust areas," she said, and outlined statistical areas (ANVSA, OTSAs, tribal designated statistical areas) that the Census uses to tabulate data.

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