# Counties in Iowa by national Risk Index score (FEMA), 2025

All 99 values come from Federal Emergency Management Agency for 2025, so the places are comparable.

- Indicator id: `nri_risk_index_score`
- Unit: index
- Definition: FEMA's composite natural hazard risk score for a US county, from 0 to 100: the county's national percentile rank among all counties for risk, which combines expected annual losses from 18 natural hazards with social vulnerability and community resilience. Higher means more risk.
- Source: Federal Emergency Management Agency, National Risk Index Counties, National Risk Index Score Composite (RISK_SCORE) (https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355)
- Publisher page: https://invokely.ai/en/publishers/fema
- Retrieved: 2026-10-12
- Citation: Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties, National Risk Index Score Composite (RISK_SCORE). https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Retrieved 2026-10-12. This product uses the FEMA National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
- Web page: https://invokely.ai/rankings/national-risk-index-score/iowa-counties

| Rank | Place | index |
|---:|---|---:|
| 1 | Polk County | 92 |
| 2 | Johnson County | 87.4 |
| 3 | Linn County | 86.7 |
| 4 | Scott County | 84.9 |
| 5 | Woodbury County | 83.3 |
| 6 | Pottawattamie County | 80.4 |
| 7 | Black Hawk County | 76.6 |
| 8 | Cerro Gordo County | 69.6 |
| 9 | Story County | 68.8 |
| 10 | Wapello County | 65.3 |
| 11 | Clinton County | 64.8 |
| 12 | Dubuque County | 63.6 |
| 13 | Lee County | 63 |
| 14 | Marshall County | 62.5 |
| 15 | Crawford County | 60.9 |
| 16 | Dallas County | 60.6 |
| 17 | Cass County | 60.1 |
| 18 | Webster County | 60 |
| 19 | Hardin County | 58.4 |
| 20 | Muscatine County | 57.8 |
| 21 | Carroll County | 57.6 |
| 22 | Des Moines County | 55.8 |
| 23 | Sioux County | 52.4 |
| 24 | Fayette County | 50.9 |
| 25 | Davis County | 50.4 |
| 26 | Delaware County | 49.8 |
| 27 | Union County | 49.5 |
| 28 | Adair County | 49.5 |
| 29 | Plymouth County | 49.2 |
| 30 | Floyd County | 47.7 |
| 31 | Tama County | 45.3 |
| 32 | Calhoun County | 44.6 |
| 33 | Washington County | 44.2 |
| 34 | Jasper County | 43.7 |
| 35 | Hamilton County | 42.9 |
| 36 | Emmet County | 42.8 |
| 37 | Clayton County | 42.2 |
| 38 | Wright County | 41.5 |
| 39 | Appanoose County | 41.2 |
| 40 | Page County | 40.2 |
| 41 | Buena Vista County | 39.3 |
| 42 | Audubon County | 38.6 |
| 43 | Taylor County | 38.5 |
| 44 | Allamakee County | 38.2 |
| 45 | Mitchell County | 37.7 |
| 46 | Clay County | 36.4 |
| 47 | Dickinson County | 36.3 |
| 48 | Winneshiek County | 36.2 |
| 49 | Warren County | 36.1 |
| 50 | Jackson County | 36.1 |
| 51 | Madison County | 35.5 |
| 52 | Marion County | 34.4 |
| 53 | Cherokee County | 34.1 |
| 54 | Montgomery County | 33.7 |
| 55 | Van Buren County | 33.6 |
| 56 | Pocahontas County | 33.1 |
| 57 | Jones County | 32.7 |
| 58 | Kossuth County | 32.3 |
| 59 | Greene County | 31.8 |
| 60 | Chickasaw County | 31.7 |
| 61 | Harrison County | 31.3 |
| 62 | Poweshiek County | 31.3 |
| 63 | Henry County | 30.9 |
| 64 | Winnebago County | 30.7 |
| 65 | Mahaska County | 29.7 |
| 66 | Lucas County | 29.7 |
| 67 | Benton County | 28.8 |
| 68 | Hancock County | 28.8 |
| 69 | Boone County | 28.4 |
| 70 | Iowa County | 28.2 |
| 71 | Sac County | 27.3 |
| 72 | Butler County | 27.1 |
| 73 | Jefferson County | 27.1 |
| 74 | Guthrie County | 26.5 |
| 75 | Monona County | 25.1 |
| 76 | Bremer County | 24.6 |
| 77 | Humboldt County | 24.1 |
| 78 | Buchanan County | 24.1 |
| 79 | Decatur County | 23.6 |
| 80 | Shelby County | 22.8 |
| 81 | Wayne County | 22 |
| 82 | Franklin County | 22 |
| 83 | Keokuk County | 21.9 |
| 84 | Cedar County | 21.5 |
| 85 | Adams County | 20.4 |
| 86 | Lyon County | 19.2 |
| 87 | Mills County | 18.5 |
| 88 | Clarke County | 18.4 |
| 89 | Ida County | 18.4 |
| 90 | Louisa County | 17.5 |
| 91 | O'Brien County | 16.4 |
| 92 | Howard County | 15.6 |
| 93 | Palo Alto County | 15.5 |
| 94 | Fremont County | 15 |
| 95 | Osceola County | 14.9 |
| 96 | Ringgold County | 14.2 |
| 97 | Grundy County | 13.1 |
| 98 | Monroe County | 10.3 |
| 99 | Worth County | 9.9 |