Idaho / Counties by Population

Idaho Counties by Population

Below are the 44 Idaho counties sorted by population from 1 to 44 . The population data are from the 2020 American Community Survey. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Ada County 469,473
2 Canyon County 223,890
3 Kootenai County 161,676
4 Bonneville County 116,970
5 Bannock County 86,742
6 Twin Falls County 86,198
7 Bingham County 46,246
8 Bonner County 44,688
9 Nez Perce County 40,468
10 Latah County 40,052
11 Madison County 39,725
12 Jefferson County 29,238
13 Elmore County 27,043
14 Jerome County 24,074
15 Cassia County 23,847
16 Payette County 23,705
17 Blaine County 22,729
18 Minidoka County 20,817
19 Gem County 17,771
20 Idaho County 16,511
21 Gooding County 15,280
22 Franklin County 13,736
23 Fremont County 13,111
24 Shoshone County 12,700
25 Boundary County 12,156
26 Teton County 11,776
27 Owyhee County 11,724
28 Valley County 11,085
29 Washington County 10,128
30 Benewah County 9,231
31 Clearwater County 8,735
32 Lemhi County 7,929
33 Power County 7,635
34 Boise County 7,625
35 Caribou County 7,028
36 Bear Lake County 6,054
37 Lincoln County 5,342
38 Oneida County 4,429
39 Adams County 4,200
40 Custer County 4,193
41 Lewis County 3,850
42 Butte County 2,603
43 Camas County 1,069
44 Clark County 885

United States Census Bureau. B01001 SEX BY AGE, 2020 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 17 March 2022. http://www.census.gov/.

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