Idaho State Counties
Reservations
Valley: Median age






Source: 1980 and 1990: U.S. Bureau of the Census, (https://www.census.gov/programs-surveys/decennial-census/data.html);
2000 & 2010: U.S. Bureau of the Census, Census of Population and Housing, (https://data.census.gov/cedsci/);
2011-2021: U.S. Bureau of the Census, Population Estimates - County Characteristics, (http://www.census.gov/popest/); DATE LAST UPDATED: May 10, 2023.



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