66 counties · FEMA NRI December 2025
South Dakota: home risks by county
0 of 66 South Dakota 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 |
|---|---|---|---|---|---|---|---|
| Minnehaha County | Relatively Moderate | 17 | 425 | Oct 6 | Ice storm (Very High) | 6A | 1 |
| Dewey County | Relatively Low | 16 | — | Sep 30 | Cold wave (Very High) | 6A | 2 |
| Pennington County | Relatively Low | 21 | 135 | Oct 1 | Hail (Relatively High) | 6A | 2 |
| Brown County | Relatively Low | 19 | 484 | Sep 26 | Winter weather (Very High) | 6A | 1 |
| Yankton County | Relatively Low | 16 | 62 | Oct 11 | Drought (Relatively High) | 5A | 1 |
| Lincoln County | Relatively Low | 17 | 39 | Oct 6 | Winter weather (Relatively High) | 6A | 1 |
| Codington County | Relatively Low | 23 | 472 | Sep 30 | Ice storm (Relatively High) | 6A | 1 |
| Brule County | Relatively Low | 21 | 7 | Oct 7 | Cold wave (Relatively High) | 5A | 1 |
| Brookings County | Relatively Low | 21 | 143 | Oct 1 | Winter weather (Relatively High) | 6A | 1 |
| Oglala Lakota County | Relatively Low | — | — | Sep 27 | Strong wind (Relatively High) | 6A | 2 |
| Meade County | Relatively Low | 21 | 23 | Sep 26 | Winter weather (Relatively High) | 6A | 2 |
| Lawrence County | Relatively Low | 17 | 38 | Sep 29 | Winter weather (Relatively High) | 6A | 2 |
| Charles Mix County | Relatively Low | 17 | 11 | Oct 13 | Cold wave (Relatively Moderate) | 5A | 1 |
| Hutchinson County | Relatively Low | 24 | 14 | Oct 4 | Drought (Relatively High) | 5A | 1 |
| Beadle County | Relatively Low | 21 | 24 | Oct 2 | Drought (Relatively Moderate) | 6A | 1 |
| McCook County | Relatively Low | 21 | 29 | Sep 29 | Winter weather (Relatively Moderate) | 6A | 1 |
| Walworth County | Very Low | 12 | — | Oct 4 | Cold wave (Relatively Moderate) | 6A | 1 |
| Davison County | Very Low | 15 | 30 | Oct 5 | Winter weather (Relatively High) | 6A | 1 |
| Corson County | Very Low | 16 | 1 | Sep 30 | Cold wave (Relatively High) | 6A | 1 |
| Roberts County | Very Low | 24 | 51 | Sep 30 | Winter weather (Relatively High) | 6A | 1 |
| Union County | Very Low | 19 | 443 | Oct 3 | Winter weather (Relatively Moderate) | 5A | 1 |
| Todd County | Very Low | 13 | 4 | Sep 29 | Winter weather (Relatively High) | 5A | 2 |
| Tripp County | Very Low | 20 | — | Oct 10 | Cold wave (Relatively Moderate) | 5A | 2 |
| Lake County | Very Low | 20 | 291 | Sep 30 | Winter weather (Relatively Moderate) | 6A | 1 |
| Fall River County | Very Low | 16 | 1 | Sep 30 | Wildfire (Relatively Moderate) | 6A | 2 |
| Day County | Very Low | 25 | 257 | Oct 6 | Winter weather (Relatively Moderate) | 6A | 1 |
| Moody County | Very Low | 21 | 59 | Oct 4 | Ice storm (Relatively High) | 6A | 1 |
| Lyman County | Very Low | 16 | 16 | Sep 28 | Cold wave (Relatively Moderate) | 5A | 1 |
| Ziebach County | Very Low | 21 | 3 | Oct 3 | Cold wave (Relatively Moderate) | 6A | 2 |
| Turner County | Very Low | 26 | 26 | Oct 4 | Drought (Relatively Moderate) | 6A | 1 |
| Butte County | Very Low | 21 | 13 | Oct 1 | Hail (Relatively Moderate) | 6A | 2 |
| Clay County | Very Low | 19 | 13 | Oct 11 | Drought (Relatively Moderate) | 5A | 1 |
| Aurora County | Very Low | 23 | 2 | Oct 5 | Ice storm (Relatively Moderate) | 6A | 1 |
| Grant County | Very Low | 22 | 41 | Oct 2 | Cold wave (Relatively Moderate) | 6A | 1 |
| Spink County | Very Low | 23 | 74 | Oct 1 | Cold wave (Relatively Moderate) | 6A | 1 |
| Hughes County | Very Low | 17 | 88 | Oct 3 | Winter weather (Relatively Moderate) | 6A | 1 |
| Custer County | Very Low | 17 | 50 | Sep 24 | Wildfire (Relatively Moderate) | 6A | 2 |
| Gregory County | Very Low | 22 | 3 | Oct 3 | Cold wave (Relatively Moderate) | 5A | 2 |
| Hanson County | Very Low | 25 | 10 | Oct 5 | Drought (Relatively Moderate) | 6A | 1 |
| Marshall County | Very Low | 20 | 13 | Oct 9 | Winter weather (Relatively Moderate) | 6A | 1 |
| Buffalo County | Very Low | 21 | — | Oct 7 | Cold wave (Relatively Moderate) | 6A | 1 |
| McPherson County | Very Low | 17 | 3 | Sep 30 | Winter weather (Relatively Moderate) | 6A | 1 |
| Bon Homme County | Very Low | 16 | 2 | Oct 7 | Drought (Relatively Moderate) | 5A | 1 |
| Douglas County | Very Low | 18 | 1 | Oct 6 | Ice storm (Relatively Moderate) | 5A | 1 |
| Jackson County | Very Low | 22 | — | Oct 1 | Ice storm (Relatively Moderate) | 5A | 2 |
| Potter County | Very Low | 16 | — | Oct 2 | Cold wave (Relatively Moderate) | 6A | 1 |
| Hamlin County | Very Low | 22 | 347 | Sep 30 | Ice storm (Relatively Moderate) | 6A | 1 |
| Haakon County | Very Low | 16 | 2 | Sep 30 | Wildfire (Relatively Low) | 5A | 2 |
| Jerauld County | Very Low | 21 | — | Oct 8 | Cold wave (Relatively Moderate) | 6A | 1 |
| Faulk County | Very Low | 17 | 3 | Sep 28 | Hail (Relatively Low) | 6A | 1 |
| Kingsbury County | Very Low | 24 | 47 | Oct 4 | Ice storm (Relatively Moderate) | 6A | 1 |
| Edmunds County | Very Low | 20 | 6 | Sep 30 | Winter weather (Relatively Moderate) | 6A | 1 |
| Deuel County | Very Low | 24 | — | Sep 30 | Ice storm (Relatively Moderate) | 6A | 1 |
| Hyde County | Very Low | 15 | 1 | Oct 1 | Wildfire (Relatively Low) | 6A | 1 |
| Hand County | Very Low | 22 | 8 | Oct 3 | Wildfire (Relatively Low) | 6A | 1 |
| Sully County | Very Low | 16 | 5 | Oct 3 | Wildfire (Relatively Low) | 6A | 1 |
| Bennett County | Very Low | 15 | — | Oct 2 | Wildfire (Relatively Low) | 5A | 2 |
| Mellette County | Very Low | 14 | — | Oct 4 | Wildfire (Relatively Low) | 5A | 2 |
| Stanley County | Very Low | 15 | 117 | Oct 3 | Winter weather (Relatively Low) | 5A | 1 |
| Clark County | Very Low | 22 | 15 | Oct 5 | Cold wave (Relatively Low) | 6A | 1 |
| Campbell County | Very Low | 15 | 1 | Sep 30 | Wildfire (Relatively Low) | 6A | 1 |
| Sanborn County | Very Low | 22 | 11 | Oct 5 | Wildfire (Relatively Low) | 6A | 1 |
| Miner County | Very Low | 20 | — | Oct 2 | Drought (Relatively Moderate) | 6A | 1 |
| Perkins County | Very Low | 21 | — | Oct 1 | Wildfire (Relatively Low) | 6A | 1 |
| Harding County | Very Low | 15 | 1 | Oct 1 | Wildfire (Relatively Low) | 6A | 2 |
| Jones County | Very Low | 15 | — | Oct 7 | Wildfire (Relatively Low) | 5A | 2 |
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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