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

All 66 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/south-dakota-counties

| Rank | Place | index |
|---:|---|---:|
| 1 | Minnehaha County | 89.5 |
| 2 | Dewey County | 78.7 |
| 3 | Pennington County | 78.6 |
| 4 | Brown County | 73.5 |
| 5 | Yankton County | 63.4 |
| 6 | Lincoln County | 63 |
| 7 | Codington County | 61.8 |
| 8 | Brule County | 58.7 |
| 9 | Brookings County | 50.1 |
| 10 | Oglala Lakota County | 49.8 |
| 11 | Meade County | 49.5 |
| 12 | Lawrence County | 49.3 |
| 13 | Charles Mix County | 48.5 |
| 14 | Hutchinson County | 47.9 |
| 15 | Beadle County | 47.1 |
| 16 | McCook County | 43.5 |
| 17 | Walworth County | 39.5 |
| 18 | Davison County | 39.3 |
| 19 | Corson County | 38.1 |
| 20 | Roberts County | 37.8 |
| 21 | Union County | 37.1 |
| 22 | Todd County | 36.6 |
| 23 | Tripp County | 36.5 |
| 24 | Lake County | 32.6 |
| 25 | Fall River County | 30.9 |
| 26 | Day County | 27.6 |
| 27 | Moody County | 26.9 |
| 28 | Lyman County | 26.5 |
| 29 | Ziebach County | 25.2 |
| 30 | Turner County | 24 |
| 31 | Butte County | 23.3 |
| 32 | Clay County | 20.5 |
| 33 | Aurora County | 19.6 |
| 34 | Grant County | 18.9 |
| 35 | Spink County | 17.7 |
| 36 | Hughes County | 16.5 |
| 37 | Custer County | 16.4 |
| 38 | Gregory County | 16.2 |
| 39 | Hanson County | 14.8 |
| 40 | Marshall County | 14.5 |
| 41 | Buffalo County | 13.7 |
| 42 | McPherson County | 11.1 |
| 43 | Bon Homme County | 10.9 |
| 44 | Douglas County | 10.4 |
| 45 | Jackson County | 10.2 |
| 46 | Potter County | 10 |
| 47 | Hamlin County | 10 |
| 48 | Haakon County | 9.7 |
| 49 | Jerauld County | 9.5 |
| 50 | Faulk County | 8 |
| 51 | Kingsbury County | 7.9 |
| 52 | Edmunds County | 7 |
| 53 | Deuel County | 6.9 |
| 54 | Hyde County | 6.5 |
| 55 | Hand County | 6.5 |
| 56 | Sully County | 6.3 |
| 57 | Bennett County | 5.9 |
| 58 | Mellette County | 5.2 |
| 59 | Stanley County | 5.1 |
| 60 | Clark County | 4.6 |
| 61 | Campbell County | 4.4 |
| 62 | Sanborn County | 3.6 |
| 63 | Miner County | 3.4 |
| 64 | Perkins County | 2.6 |
| 65 | Harding County | 1.5 |
| 66 | Jones County | 1.3 |