44 counties · FEMA NRI December 2025
Idaho: home risks by county
0 of 44 Idaho counties are rated Relatively High or Very High for overall risk relative to other US counties. Sort the table to compare disaster declarations, flood-insurance claims and typical first freeze.
| County | Overall risk ↓ | Declarations | Flood claims | First freeze | Top hazard | Zone | Radon |
|---|---|---|---|---|---|---|---|
| Ada County | Relatively Moderate | 6 | 133 | Oct 21 | Winter weather (Very High) | 5B | 2 |
| Bonneville County | Relatively Moderate | 7 | 17 | Sep 20 | Avalanche (Relatively High) | 6B | 2 |
| Kootenai County | Relatively Low | 18 | 91 | Oct 18 | Winter weather (Relatively High) | 5B | 1 |
| Idaho County | Relatively Low | 18 | 5 | Oct 25 | Landslide (Relatively High) | 5B | 1 |
| Bonner County | Relatively Low | 18 | 40 | Sep 28 | Avalanche (Relatively High) | 6B | 1 |
| Canyon County | Relatively Low | 4 | 29 | Oct 21 | Winter weather (Very High) | 5B | 2 |
| Bannock County | Relatively Low | 5 | 40 | Sep 18 | Winter weather (Relatively High) | 6B | 2 |
| Blaine County | Relatively Low | 10 | 309 | Oct 1 | Avalanche (Very High) | 6B | 1 |
| Shoshone County | Relatively Low | 16 | 108 | Sep 23 | Avalanche (Very High) | 5B | 1 |
| Bingham County | Relatively Low | 7 | 31 | Sep 18 | Winter weather (Relatively High) | 6B | 2 |
| Madison County | Relatively Low | 5 | 9 | Sep 23 | Lightning (Relatively High) | 6B | 2 |
| Valley County | Relatively Low | 12 | 1 | Sep 10 | Wildfire (Relatively Moderate) | 6B | 1 |
| Custer County | Relatively Low | 7 | 1 | Sep 25 | Avalanche (Very High) | 6B | 1 |
| Elmore County | Relatively Low | 11 | 11 | Sep 6 | Wildfire (Relatively High) | 5B | 1 |
| Boise County | Relatively Low | 7 | 1 | Sep 4 | Avalanche (Relatively High) | 6B | 1 |
| Twin Falls County | Relatively Low | 4 | 16 | Oct 4 | Winter weather (Relatively High) | 5B | 2 |
| Clearwater County | Relatively Low | 15 | 8 | Sep 7 | Landslide (Relatively Moderate) | 5B | 1 |
| Owyhee County | Relatively Low | 6 | — | Oct 17 | Wildfire (Relatively Moderate) | 5B | 2 |
| Cassia County | Relatively Low | 5 | 2 | Oct 4 | Wildfire (Relatively Moderate) | 5B | 2 |
| Lemhi County | Very Low | 5 | 24 | Sep 24 | Landslide (Relatively Moderate) | 6B | 1 |
| Jefferson County | Very Low | 6 | 18 | Sep 20 | Winter weather (Relatively Moderate) | 6B | 2 |
| Adams County | Very Low | 9 | 4 | Sep 10 | Avalanche (Relatively High) | 6B | 3 |
| Fremont County | Very Low | 5 | 7 | Sep 21 | Avalanche (Relatively High) | 6B | 1 |
| Gem County | Very Low | 7 | 4 | Sep 16 | Wildfire (Relatively Moderate) | 5B | 3 |
| Latah County | Very Low | 16 | 61 | Oct 2 | Wildfire (Relatively Moderate) | 5B | 1 |
| Nez Perce County | Very Low | 15 | 6 | Oct 26 | Wildfire (Relatively Moderate) | 5B | 3 |
| Washington County | Very Low | 10 | 23 | Sep 27 | Wildfire (Relatively Moderate) | 5B | 3 |
| Teton County | Very Low | 3 | 4 | Sep 9 | Avalanche (Relatively High) | 6B | 2 |
| Boundary County | Very Low | 12 | 3 | Oct 4 | Landslide (Relatively Moderate) | 6B | 1 |
| Gooding County | Very Low | 7 | 6 | Oct 1 | Wildfire (Relatively Moderate) | 5B | 1 |
| Jerome County | Very Low | 6 | 1 | Oct 14 | Winter weather (Relatively High) | 5B | 2 |
| Minidoka County | Very Low | 5 | 5 | Oct 4 | Winter weather (Relatively Moderate) | 5B | 2 |
| Benewah County | Very Low | 16 | 34 | Oct 4 | Landslide (Relatively Moderate) | 5B | 1 |
| Payette County | Very Low | 6 | 26 | Oct 14 | Wildfire (Relatively Moderate) | 5B | 2 |
| Power County | Very Low | 5 | — | Sep 18 | Wildfire (Relatively Moderate) | 5B | 2 |
| Lincoln County | Very Low | 7 | 5 | Oct 14 | Wildfire (Relatively Moderate) | 5B | 2 |
| Franklin County | Very Low | 4 | 1 | Sep 20 | Winter weather (Relatively Moderate) | 6B | 2 |
| Caribou County | Very Low | 5 | 1 | Sep 17 | Avalanche (Relatively Moderate) | 6B | 2 |
| Bear Lake County | Very Low | 4 | — | Sep 3 | Avalanche (Relatively Moderate) | 6B | 2 |
| Camas County | Very Low | 8 | — | Sep 14 | Avalanche (Relatively High) | 6B | 1 |
| Butte County | Very Low | 6 | — | Sep 6 | Avalanche (Relatively Moderate) | 6B | 1 |
| Lewis County | Very Low | 12 | — | Sep 20 | Wildfire (Relatively Low) | 5B | 3 |
| Oneida County | Very Low | 3 | 1 | Sep 20 | Wildfire (Relatively Low) | 6B | 2 |
| Clark County | Very Low | 4 | — | Sep 20 | Avalanche (Relatively Moderate) | 6B | 1 |
Ratings are relative to other US counties, not probabilities. Counties without a link have too little public data for a full profile.
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