Idaho Total Population in 2000 by County

Data Item State
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Resident population (April 1) 2000 (complete count) - (Number)
County Value
Ada 300,904
Adams 3,476
Bannock 75,565
Bear Lake 6,411
Benewah 9,171
Bingham 41,735
Blaine 18,991
Boise 6,670
Bonner 36,835
Bonneville 82,522
Boundary 9,871
Butte 2,899
Camas 991
Canyon 131,441
Caribou 7,304
Cassia 21,416
Clark 1,022
Clearwater 8,930
Custer 4,342
Elmore 29,130
Franklin 11,329
Fremont 11,819
Gem 15,181
Gooding 14,155
Idaho 15,511
Jefferson 19,155
Jerome 18,342
Kootenai 108,685
Latah 34,935
Lemhi 7,806
Lewis 3,747
Lincoln 4,044
Madison 27,467
Minidoka 20,174
Nez Perce 37,410
Oneida 4,125
Owyhee 10,644
Payette 20,578
Power 7,538
Shoshone 13,771
Teton 5,999
Twin Falls 64,284
Valley 7,651
Washington 9,977

Value for Idaho (Number): 1,293,953

Data item: Resident population (April 1) 2000 (complete count)

Source: U.S. Bureau of the Census, Population Estimates Program (PEP). Updated annually. Census Bureau, 2000 Census of Population, Public Law 94-171 Redistricting Data File. Updated every 10 years.

Estimates are made for the United States, states, counties, places, and metropolitan areas within the United States. The timing of estimates and availability of demographic detail vary by geographic level. The schedule of releases is available at


The Census Bureau's Population Estimates Program (PEP) produces July 1 estimates for years after the last published decennial census (2000). Existing data series such as births, deaths, and domestic and international immigration, are used to update the decennial census base counts. PEP estimates are used in federal funding allocations, in setting the levels of national surveys, and in monitoring recent demographic changes.

With each new issue of July 1 estimates, PEP revises estimates for years back to the last census. Previously released estimates are superseded. Revisions to estimates for prior years are usually due to input data updates, changes in methodology, or legal boundary changes.

Scope and Methodology:

The population shown for April 1, 2000, is based on Census 2000, revised as necessary to reflect corrections to the census figures or adjustments to account for any boundary changes subsequent to the census.

County population estimates are created by starting with that base population for April 1, 2000. The estimated number of births for the time period since April 1, 2000 is added and the estimated number of deaths for the time period is subtracted. The result is adjusted for net migration, which is calculated using several components including net internal migration, net foreign-born international migration, net movement to/from Puerto Rico, net movement of federal and civilian citizens, the change in group-quarters population, and native emigration from the United States. Birth and death data are obtained through vital statistics, domestic migration is estimated through the address matching of federal tax returns, and international migration data is supplied by the Immigration and Naturalization Service.

County population estimates are produced with this component-of-population-change method, while the state population estimates are solely the sum of the county populations. The following documentation describes the work that is being carried out in the production of the latest published population estimates.

More information: