Map of Idaho
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How many counties are in Idaho?
Idaho has 44 counties. The list below includes each county, its FIPS code, and population.
Idaho county table
County list for Idaho with county FIPS codes and population totals.
| County | State | County FIPS | Population |
|---|---|---|---|
| Ada County | ID | 16001 | 524,673 |
| Canyon County | ID | 16027 | 257,674 |
| Kootenai County | ID | 16055 | 185,010 |
| Bonneville County | ID | 16019 | 131,366 |
| Twin Falls County | ID | 16083 | 95,156 |
| Bannock County | ID | 16005 | 90,400 |
| Madison County | ID | 16065 | 54,547 |
| Bonner County | ID | 16017 | 52,547 |
| Bingham County | ID | 16011 | 50,395 |
| Nez Perce County | ID | 16069 | 42,987 |
| Latah County | ID | 16057 | 41,301 |
| Jefferson County | ID | 16051 | 34,198 |
| Elmore County | ID | 16039 | 29,724 |
| Payette County | ID | 16075 | 27,279 |
| Cassia County | ID | 16031 | 25,696 |
| Jerome County | ID | 16053 | 25,479 |
| Blaine County | ID | 16013 | 25,041 |
| Minidoka County | ID | 16067 | 22,480 |
| Gem County | ID | 16045 | 21,071 |
| Idaho County | ID | 16049 | 17,890 |
| Gooding County | ID | 16047 | 16,061 |
| Franklin County | ID | 16041 | 15,494 |
| Fremont County | ID | 16043 | 14,196 |
| Shoshone County | ID | 16079 | 14,026 |
| Boundary County | ID | 16021 | 13,557 |
| Owyhee County | ID | 16073 | 12,722 |
| Valley County | ID | 16085 | 12,644 |
| Teton County | ID | 16081 | 12,549 |
| Washington County | ID | 16087 | 11,425 |
| Benewah County | ID | 16009 | 10,369 |
| Clearwater County | ID | 16035 | 9,214 |
| Boise County | ID | 16015 | 8,517 |
| Lemhi County | ID | 16059 | 8,441 |
| Power County | ID | 16077 | 8,253 |
| Caribou County | ID | 16029 | 7,219 |
| Bear Lake County | ID | 16007 | 6,766 |
| Lincoln County | ID | 16063 | 5,450 |
| Oneida County | ID | 16071 | 4,953 |
| Adams County | ID | 16003 | 4,903 |
| Custer County | ID | 16037 | 4,523 |
| Lewis County | ID | 16061 | 3,739 |
| Butte County | ID | 16023 | 2,758 |
| Camas County | ID | 16025 | 1,232 |
| Clark County | ID | 16033 | 801 |