Population
|
County
|
511,931
|
Ada
|
243,115
|
Canyon
|
179,789
|
Kootenai
|
127,930
|
Bonneville
|
92,243
|
Twin Falls
|
88,263
|
Bannock
|
53,881
|
Madison
|
49,491
|
Bonner
|
48,876
|
Bingham
|
42,454
|
Nez Perce
|
40,313
|
Latah
|
32,202
|
Jefferson
|
28,827
|
Elmore
|
26,350
|
Payette
|
25,164
|
Cassia
|
24,766
|
Blaine
|
24,662
|
Jerome
|
21,955
|
Minidoka
|
19,792
|
Gem
|
17,040
|
Idaho
|
15,772
|
Gooding
|
14,666
|
Franklin
|
|
Population
|
County
|
13,612
|
Shoshone
|
13,592
|
Fremont
|
12,561
|
Boundary
|
12,336
|
Owyhee
|
12,267
|
Teton
|
12,241
|
Valley
|
10,898
|
Washington
|
9,931
|
Benewah
|
8,895
|
Clearwater
|
8,162
|
Lemhi
|
8,094
|
Boise
|
7,950
|
Power
|
7,111
|
Caribou
|
6,545
|
Bear Lake
|
5,282
|
Lincoln
|
4,625
|
Adams
|
4,611
|
Oneida
|
4,428
|
Custer
|
3,715
|
Lewis
|
2,654
|
Butte
|
1,139
|
Camas
|
792
|
Clark
|
|