Idaho Population by County

Data Item State
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Resident total population, 2010 - (Number)
County Value
Ada 392,365
Adams 3,976
Bannock 82,839
Bear Lake 5,986
Benewah 9,285
Bingham 45,607
Blaine 21,376
Boise 7,028
Bonner 40,877
Bonneville 104,234
Boundary 10,972
Butte 2,891
Camas 1,117
Canyon 188,923
Caribou 6,963
Cassia 22,952
Clark 982
Clearwater 8,761
Custer 4,368
Elmore 27,038
Franklin 12,786
Fremont 13,242
Gem 16,719
Gooding 15,464
Idaho 16,267
Jefferson 26,140
Jerome 22,374
Kootenai 138,494
Latah 37,244
Lemhi 7,936
Lewis 3,821
Lincoln 5,208
Madison 37,536
Minidoka 20,069
Nez Perce 39,265
Oneida 4,286
Owyhee 11,526
Payette 22,623
Power 7,817
Shoshone 12,765
Teton 10,170
Twin Falls 77,230
Valley 9,862
Washington 10,198

Value for Idaho (Number): 1,567,582

Data item: Resident total population, 2010

Source: U.S. Census Bureau, 2010 Census of Population, Public Law 94-171 Redistricting Data File. Updated every 10 years.


In Census 2010, people were counted at their "usual residence", a principle followed in each census since 1790. Usual residence has been defined as the place where the person lives and sleeps most of the time. This place is not necessarily the same as the person's voting residence or legal residence.

Noncitizens who are living in the United States are included, regardless of their immigration status.

Persons temporarily away from their usual residence, such as on vacation or on a business trip on Census Day, were counted at their usual residence. People who live at more than one residence during the week, month, or year were counted at the place where they live most of the year. People without a usual residence, however, were counted where they were staying on Census Day.

Scope and Methodology:

Place of residence was derived from answers to questions that were asked of all people in Census 2010 and Census 2000.

The "April 1, 2000 estimates base" reflects corrections to the Census 2000 figures, where necessary, or adjustments to account for any boundary changes subsequent to the census.

Population percent change, 2000 to 2010, is derived by dividing the difference between the population in Census 2010 and the April 1, 2000 estimates base by the April 1, 2000 estimates base.

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