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Total Population in Idaho, by County

Total Population for every county in Idaho, ranked. The highest is Ada County at 518,935 and the lowest is Clark County at 849.

Idaho: 1,934,262 · United States: 334,922,499 · median county in Idaho: 13,943

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#County Total Population
1Ada County518,935
2Canyon County250,790
3Kootenai County181,996
4Bonneville County129,523
5Twin Falls County93,734
6Bannock County89,454
7Madison County54,618
8Bonner County51,049
9Bingham County49,664
10Nez Perce County42,697
11Latah County41,049
12Jefferson County33,154
13Elmore County29,321
14Payette County26,771
15Cassia County25,483
16Jerome County25,173
17Blaine County24,951
18Minidoka County22,208
19Gem County20,614
20Idaho County17,432
21Gooding County15,931
22Franklin County15,056
23Fremont County13,943
24Shoshone County13,785
25Boundary County13,172
26Owyhee County12,503
27Teton County12,425
28Valley County12,389
29Washington County11,142
30Benewah County10,142
31Clearwater County9,012
32Boise County8,273
33Lemhi County8,249
34Power County8,133
35Caribou County7,162
36Bear Lake County6,650
37Lincoln County5,358
38Oneida County4,768
39Adams County4,744
40Custer County4,470
41Lewis County3,682
42Butte County2,684
43Camas County1,124
44Clark County849

Everyone living in the area, from the 5-year American Community Survey.

Source: ACS 2020-2024 5-Year Estimates, 2024.

Idaho ranks 39th of 52 states for total population.

Total Population in other states

Other statistics for Idaho by county