Ranking of Idaho Counties By Total Population from Census 2020
Updated on February 7, 2023.
According to the data from the US 2020 Census, the most populated Idaho county as at April 2020 was Ada County (494.97K), followed by Canyon County (231.11K), and Kootenai County (171.36K).
The chart below shows the top 10 most populated counties, and the table below shows the ranking of all the counties in the state of Idaho.
You can also see the ranking of counties by population for other states as well as for the whole United States.
You may also be interested in:
Related Topics: Idaho Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Idaho Counties By Total Population from Census 2020
Items per page:
0 of 0
| Rank | County | Population |
|---|---|---|
| 1 | Ada County | 494967 |
| 2 | Canyon County | 231105 |
| 3 | Kootenai County | 171362 |
| 4 | Bonneville County | 123964 |
| 5 | Twin Falls County | 90046 |
| 6 | Bannock County | 87018 |
| 7 | Madison County | 52913 |
| 8 | Bingham County | 47992 |
| 9 | Bonner County | 47110 |
| 10 | Nez Perce County | 42090 |
| 11 | Latah County | 39517 |
| 12 | Jefferson County | 30891 |
| 13 | Elmore County | 28666 |
| 14 | Payette County | 25386 |
| 15 | Cassia County | 24655 |
| 16 | Blaine County | 24272 |
| 17 | Jerome County | 24237 |
| 18 | Minidoka County | 21613 |
| 19 | Gem County | 19123 |
| 20 | Idaho County | 16541 |
| 21 | Gooding County | 15598 |
| 22 | Franklin County | 14194 |
| 23 | Fremont County | 13388 |
| 24 | Shoshone County | 13169 |
| 25 | Boundary County | 12056 |
| 26 | Owyhee County | 11913 |
| 27 | Valley County | 11746 |
| 28 | Teton County | 11630 |
| 29 | Washington County | 10500 |
| 30 | Benewah County | 9530 |
| 31 | Clearwater County | 8734 |
| 32 | Lemhi County | 7974 |
| 33 | Power County | 7878 |
| 34 | Boise County | 7610 |
| 35 | Caribou County | 7027 |
| 36 | Bear Lake County | 6372 |
| 37 | Lincoln County | 5127 |
| 38 | Oneida County | 4564 |
| 39 | Adams County | 4379 |
| 40 | Custer County | 4275 |
| 41 | Lewis County | 3533 |
| 42 | Butte County | 2574 |
| 43 | Camas County | 1077 |
| 44 | Clark County | 790 |