44 counties
| County | Declarations | Major disasters | Most common hazard | Latest | Population 2024 |
|---|---|---|---|---|---|
| Bonner County | 18 | 14 | Severe Storm | 2026 | 53,955 |
| Idaho County | 18 | 12 | Flood | 2026 | 17,912 |
| Kootenai County | 18 | 15 | Severe Storm | 2026 | 188,323 |
| Benewah County | 16 | 14 | Severe Storm | 2026 | 10,529 |
| Latah County | 16 | 12 | Flood | 2026 | 42,180 |
| Shoshone County | 16 | 14 | Flood | 2026 | 14,074 |
| Clearwater County | 15 | 12 | Flood | 2026 | 9,151 |
| Nez Perce County | 15 | 10 | Fire | 2026 | 42,847 |
| Boundary County | 12 | 10 | Severe Storm | 2026 | 14,040 |
| Lewis County | 12 | 9 | Flood | 2026 | 3,728 |
| Valley County | 12 | 6 | Fire | 2022 | 12,777 |
| Elmore County | 11 | 6 | Flood | 2020 | 29,729 |
| Blaine County | 10 | 4 | Fire | 2022 | 25,261 |
| Washington County | 10 | 6 | Flood | 2026 | 11,539 |
| Adams County | 9 | 5 | Biological | 2022 | 4,998 |
| Camas County | 8 | 4 | Biological | 2020 | 1,247 |
| Bingham County | 7 | 5 | Biological | 2020 | 50,889 |
| Boise County | 7 | 4 | Biological | 2020 | 8,581 |
| Bonneville County | 7 | 4 | Biological | 2020 | 133,644 |
| Custer County | 7 | 5 | Biological | 2020 | 4,597 |
| Gem County | 7 | 4 | Biological | 2022 | 21,857 |
| Gooding County | 7 | 5 | Flood | 2020 | 16,189 |
| Lincoln County | 7 | 4 | Biological | 2020 | 5,556 |
| Ada County | 6 | 4 | Biological | 2020 | 535,799 |
| Butte County | 6 | 4 | Biological | 2020 | 2,735 |
| Jefferson County | 6 | 4 | Biological | 2020 | 34,854 |
| Jerome County | 6 | 4 | Biological | 2020 | 26,056 |
| Owyhee County | 6 | 4 | Biological | 2020 | 12,748 |
| Payette County | 6 | 4 | Biological | 2020 | 27,662 |
| Bannock County | 5 | 3 | Biological | 2020 | 91,010 |
| Caribou County | 5 | 2 | Biological | 2020 | 7,239 |
| Cassia County | 5 | 3 | Biological | 2020 | 25,976 |
| Fremont County | 5 | 3 | Biological | 2020 | 14,399 |
| Lemhi County | 5 | 3 | Biological | 2020 | 8,397 |
| Madison County | 5 | 3 | Biological | 2020 | 55,549 |
| Minidoka County | 5 | 3 | Biological | 2020 | 22,691 |
| Power County | 5 | 3 | Biological | 2020 | 8,381 |
| Bear Lake County | 4 | 1 | Biological | 2020 | 6,779 |
| Canyon County | 4 | 2 | Biological | 2020 | 266,892 |
| Clark County | 4 | 1 | Biological | 2020 | 794 |
| Franklin County | 4 | 2 | Biological | 2020 | 15,638 |
| Twin Falls County | 4 | 2 | Biological | 2020 | 96,509 |
| Oneida County | 3 | 1 | Biological | 2020 | 4,976 |
| Teton County | 3 | 1 | Biological | 2020 | 12,932 |