Idaho ID
44 counties ranked by FEMA National Risk Index score. Click any column header to re-sort. Scores are 0–100 percentiles relative to all US counties — blank means Not Applicable or Insufficient Data.
| County | Overall | Wildfire | Inland flood | Coastal flood | Earthquake | Heat wave | Tornado | Hurricane | Hail | Strong wind | Winter wx | Ice storm | Cold wave | Lightning | Drought | Landslide | Avalanche | Tsunami | Volcanic |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ada County | 87.8 | 98.3 | 89.8 | — | 88.2 | 92.9 | 27 | — | 54.5 | 91.8 | 98.9 | 80.5 | 51.7 | 90.1 | 14.6 | 69.1 | 27 | — | 74.3 |
| Bonneville County | 82.4 | 90.3 | 78.6 | — | 94.2 | 81.2 | 16.2 | — | 84.9 | 43.9 | 66.2 | 26.8 | 93 | 89.5 | 19.4 | 94.2 | 94.2 | — | 72.3 |
| Kootenai County | 79 | 79.5 | 86.3 | — | 79.2 | 83.1 | 22 | — | 17.3 | 38.6 | 92.7 | 84.1 | 88.6 | 24.5 | 14 | 95.5 | 53.5 | — | — |
| Idaho County | 78.4 | 98.7 | 72.9 | — | 40.1 | 37.9 | 6.1 | — | 9.3 | 6.6 | 40.5 | 11 | 11.7 | 33.2 | 14.9 | 98.9 | 86.1 | — | — |
| Bonner County | 77.3 | 82.7 | 87 | — | 55.8 | 53.9 | 10.3 | — | 5.5 | 20.4 | 86.5 | 71.3 | 71.6 | 46.9 | 13.4 | 93.9 | 94.6 | — | — |
| Canyon County | 71.7 | 92.5 | 80.3 | — | 78.8 | 89.5 | 20.8 | — | 46.7 | 68.4 | 97 | 73.8 | 26 | 84.9 | 20.9 | 31.7 | 5.6 | — | 68.7 |
| Bannock County | 66.9 | 96.9 | 51.9 | — | 82.8 | 79 | 15.1 | — | 40.3 | 12.9 | 96.1 | 20.3 | 88.6 | 80 | 16.2 | 58.4 | 23 | — | 68.1 |
| Blaine County | 65.4 | 93.8 | 70.5 | — | 73.7 | 64.3 | 7.7 | — | 5.8 | 21.7 | 93.1 | 9.2 | 44.4 | 53.9 | 15.6 | 86.3 | 96.9 | — | 56.7 |
| Shoshone County | 62.8 | 69.6 | 76 | — | 38.4 | 30.6 | 4 | — | 2.9 | 5.5 | 61.9 | 55.2 | 35.7 | 5.9 | 12.4 | 98.2 | 96.1 | — | — |
| Bingham County | 60.1 | 83.6 | 58.8 | — | 88.3 | 86 | 8.2 | — | 44.1 | 30.6 | 93.4 | 16.9 | 81.7 | 74.4 | 26.8 | 68.6 | 20.5 | — | 67.1 |
| Madison County | 58.6 | 70.3 | 57.8 | — | 87.6 | 77 | 9.9 | — | 41.7 | 19.1 | 67.9 | 16.7 | 85.2 | 88.3 | 21.3 | 64.2 | 73.7 | — | 64.5 |
| Valley County | 55.6 | 97.5 | 55.8 | — | 66.2 | 17.6 | 3.6 | — | 5.2 | 7 | 59.1 | 9.2 | 5.5 | 27 | 12.8 | 96.4 | 84.2 | — | 23.8 |
| Custer County | 52.4 | 87 | 57.3 | — | 79.3 | 20.5 | 3 | — | 2.1 | 15.7 | 50.4 | 7.7 | 30.4 | 43.7 | 15 | 98.2 | 96.8 | — | 29.6 |
| Elmore County | 52 | 97.6 | 30.1 | — | 42 | 58.7 | 7.1 | — | 17.8 | 49.1 | 69.6 | 30.4 | 12.2 | 22 | 18 | 80.3 | 90.8 | — | 39.7 |
| Boise County | 48.9 | 97.2 | 42.9 | — | 40 | 14.9 | 4 | — | 4.5 | 23.6 | 51.9 | 13.2 | 4.6 | 9.3 | 12.4 | 97.3 | 87.6 | — | 31.9 |
| Clearwater County | 46.9 | 96.4 | 55.7 | — | 23 | 27.5 | 3.4 | — | 6.9 | 4.2 | 34 | 8.3 | 9.6 | 4.6 | 13.3 | 97.3 | 82.9 | — | — |
| Twin Falls County | 46.9 | 94 | 51.1 | — | 74 | 82.7 | 13.4 | — | 31.1 | 36.7 | 95.2 | 56.8 | 41.2 | 54.3 | 23.3 | 93.1 | 54.1 | — | 55.4 |
| Owyhee County | 44.1 | 95.8 | 58.7 | — | 34.5 | 48.2 | 6.2 | — | 15.1 | 10.9 | 71.2 | 20.5 | 9.8 | 18.1 | 20 | 71.4 | 71.8 | — | 43.6 |
| Cassia County | 43.6 | 94.7 | 52.7 | — | 74.5 | 56.6 | 9.8 | — | 10.9 | 23.2 | 81.9 | 13.8 | 42.7 | 69.1 | 25.2 | 49.5 | 56.9 | — | 47.2 |
| Lemhi County | 41.4 | 93.2 | 59.8 | — | 53.5 | 12.5 | 3.1 | — | 4.8 | 4.3 | 21.9 | 6.9 | 30.7 | 78.3 | 14.4 | 95.7 | 60.1 | — | 13 |
| Jefferson County | 40.1 | 62.5 | 37.1 | — | 80.6 | 79.1 | 7 | — | 20.6 | 12.4 | 82.7 | 10.9 | 81.8 | 54.7 | 22.2 | 34.5 | 1.9 | — | 58.3 |
| Adams County | 39.6 | 96.7 | 35.9 | — | 37.4 | 18.3 | 2.9 | — | 3.9 | 2.8 | 41 | 2.7 | 5.4 | 9.5 | 13.2 | 91.6 | 86 | — | 16.9 |
| Fremont County | 38.3 | 87.1 | 41.4 | — | 82.9 | 29.4 | 6.8 | — | 14.7 | 8 | 78.5 | 8.7 | 52.5 | 68 | 19.3 | 78.6 | 90.6 | — | 49.5 |
| Gem County | 34.4 | 96.5 | 35.7 | — | 51 | 44.3 | 5.9 | — | 5 | 24.5 | 53.9 | 23.4 | 6.4 | 19.9 | 13.2 | 47.4 | 49.9 | — | 45 |
| Latah County | 33.3 | 92.1 | 50.4 | — | 43.6 | 51.3 | 9.4 | — | 25 | 18.9 | 14.3 | 16.3 | 53.3 | 6.2 | 16 | 75.4 | 59.4 | — | — |
| Nez Perce County | 33 | 89.3 | 57.7 | — | 38.3 | 56.1 | 7.5 | — | 8.3 | 8.1 | 5.5 | 7.1 | 19.3 | 8.9 | 15.6 | 42.5 | 66.1 | — | — |
| Washington County | 30.3 | 95.6 | 38.2 | — | 53.8 | 38.3 | 5.5 | — | 18.7 | 21.9 | 51.6 | 15.9 | 8 | 17.5 | 14.2 | 72.9 | 73.5 | — | 40.1 |
| Teton County | 29.5 | 90.9 | 28 | — | 78.3 | 9.7 | 10.6 | — | 21.4 | 4.9 | 64.6 | 8.5 | 43.7 | 69.1 | 15.9 | 68.8 | 90.9 | — | 47.9 |
| Boundary County | 26.1 | 80.7 | 45.8 | — | 25.4 | 30.9 | 3.5 | — | 3.8 | 5.2 | 68.4 | 1 | 47.9 | 17.9 | 15.2 | 97.7 | 82.6 | — | — |
| Gooding County | 25.4 | 95.3 | 25.9 | — | 58.5 | 56.2 | 9.6 | — | 26.3 | 13.8 | 71.5 | 25.1 | 22.6 | 21.5 | 20.9 | 26 | 12.3 | — | 34.9 |
| Jerome County | 21.5 | 90.2 | 31.1 | — | 58.7 | 72.9 | 9 | — | 7.3 | 19.3 | 86.3 | 36.5 | 28.7 | 28.1 | 24.1 | 10.3 | 34.9 | — | 45.3 |
| Minidoka County | 20.5 | 55.3 | 32.1 | — | 74.3 | 71.7 | 8.3 | — | 9.6 | 17.9 | 82.3 | 11.5 | 45 | 51.7 | 26 | 9.7 | — | — | 55 |
| Benewah County | 19.9 | 74.8 | 46.9 | — | 26.4 | 27 | 5.1 | — | 6 | 7.6 | 37.2 | 40.4 | 31.9 | 3.6 | 14.2 | 93.9 | 48.2 | — | — |
| Payette County | 17.1 | 90 | 33.9 | — | 55.9 | 48.5 | 6.7 | — | 28.2 | 13.8 | 58.3 | 11.1 | 8.3 | 21.9 | 14.8 | 36.7 | 8 | — | 46.6 |
| Power County | 16.9 | 89 | 7.6 | — | 58.2 | 40.7 | 5.3 | — | 10.1 | 8.6 | 70.9 | 5.7 | 78.5 | 21.4 | 24.4 | 19.1 | 18.3 | — | 66.1 |
| Lincoln County | 9.1 | 92 | 14.4 | — | 32.2 | 40.2 | 3.9 | — | 4 | 10.4 | 51.6 | 12.4 | 24.2 | 12.7 | 18.6 | 9.4 | — | — | 56.4 |
| Franklin County | 7.6 | 78.8 | 17.4 | — | 70.5 | 26.6 | 3.2 | — | 6.1 | 10.4 | 64.3 | 5.5 | 20.5 | 39.2 | 16.5 | 41.3 | 25.4 | — | 21.8 |
| Caribou County | 7.2 | 81 | 10.7 | — | 72.1 | 9.1 | 3.1 | — | 9.8 | 5.5 | 58.6 | 4.6 | 28.1 | 39 | 18 | 45.1 | 80 | — | 29 |
| Bear Lake County | 6.6 | 78.4 | 7.2 | — | 68.9 | 5.5 | 2 | — | 3.8 | 10.1 | 55 | 3.8 | 18.5 | 26.8 | 15.4 | 81.9 | 84.9 | — | 24.4 |
| Camas County | 6 | 80.8 | 3.4 | — | 23.2 | 8.6 | 1.7 | — | 2.1 | 2.1 | 14.2 | 1 | 7.5 | 1.7 | 15.4 | 55.1 | 92.8 | — | 28 |
| Butte County | 4.4 | 55.5 | 9.1 | — | 45.9 | 27.7 | 3 | — | 2.7 | 7.5 | 33.1 | 3.1 | 40 | 4.8 | 18.2 | 53.3 | 81.3 | — | 57.7 |
| Lewis County | 3.1 | 85.9 | 12 | — | 23.4 | 19.3 | 2.8 | — | 8.6 | 2.7 | 2.8 | 1.2 | 9.5 | 2.2 | 15.3 | 39.5 | 62.7 | — | — |
| Oneida County | 1.4 | 81.2 | 4.9 | — | 39.8 | 17.1 | 2.6 | — | 3.1 | 6.2 | 37.1 | 2.2 | 10.1 | 13.2 | 15.5 | 22.9 | 18 | — | 23.1 |
| Clark County | 0.8 | 64.7 | 2.1 | — | 30.9 | 4.9 | 1.5 | — | 1.7 | 1.8 | 14.6 | 0.3 | 12.9 | 3.3 | 16.1 | 49.2 | 79.4 | — | 22.8 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are percentile rankings among all US counties — see the methodology page for definitions.