Wisconsin drought risk
Grant County has the highest drought risk in Wisconsin, scoring 64.7 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Grant County | 64.7 | Relatively Moderate | 0 |
| 2 | Rock County | 48 | Relatively Low | 0 |
| 3 | Racine County | 46.9 | Relatively Low | 0 |
| 4 | Dodge County | 46.2 | Relatively Low | 0 |
| 5 | Lafayette County | 46 | Relatively Low | 0 |
| 6 | Jackson County | 45.1 | Relatively Low | 0 |
| 7 | Kenosha County | 43.9 | Relatively Low | 0 |
| 8 | Vernon County | 43.7 | Relatively Low | 0 |
| 9 | Walworth County | 43.7 | Relatively Low | 0 |
| 10 | Green Lake County | 43.3 | Relatively Low | 0 |
| 11 | Waushara County | 42.9 | Relatively Low | 0 |
| 12 | Buffalo County | 40.9 | Relatively Low | 0 |
| 13 | Adams County | 40.6 | Relatively Low | 0 |
| 14 | Dane County | 39.9 | Relatively Low | 0 |
| 15 | Columbia County | 38.8 | Relatively Low | 0 |
| 16 | Trempealeau County | 38 | Relatively Low | 0 |
| 17 | Jefferson County | 37.6 | Relatively Low | 0 |
| 18 | Pierce County | 36.5 | Relatively Low | 0 |
| 19 | Richland County | 36 | Relatively Low | 0 |
| 20 | Marquette County | 35.2 | Relatively Low | 0 |
| 21 | Rusk County | 34.8 | Relatively Low | 0 |
| 22 | Crawford County | 34.6 | Relatively Low | 0 |
| 23 | Pepin County | 34.5 | Relatively Low | 0 |
| 24 | Juneau County | 34.4 | Relatively Low | 0 |
| 25 | Green County | 34 | Relatively Low | 0 |
| 26 | Sawyer County | 33.8 | Relatively Low | 0 |
| 27 | Sauk County | 33.2 | Relatively Low | 0 |
| 28 | Washington County | 33.1 | Relatively Low | 0 |
| 29 | Waukesha County | 31.6 | Relatively Low | 0 |
| 30 | Lincoln County | 30.5 | Very Low | 0 |
| 31 | Monroe County | 29.6 | Very Low | 0 |
| 32 | Oneida County | 29.2 | Very Low | 0 |
| 33 | Washburn County | 28.6 | Very Low | 0 |
| 34 | Langlade County | 28.5 | Very Low | 0 |
| 35 | Iowa County | 28 | Very Low | 0 |
| 36 | Polk County | 27.3 | Very Low | 0 |
| 37 | La Crosse County | 27 | Very Low | 0 |
| 38 | Winnebago County | 26.1 | Very Low | 0 |
| 39 | Clark County | 24.6 | Very Low | 0 |
| 40 | Price County | 24.3 | Very Low | 0 |
| 41 | Fond du Lac County | 23.3 | Very Low | 0 |
| 42 | Burnett County | 22.8 | Very Low | 0 |
| 43 | Bayfield County | 21.9 | Very Low | 0 |
| 44 | Ozaukee County | 21.5 | Very Low | 0 |
| 45 | Barron County | 20.5 | Very Low | 0 |
| 46 | Vilas County | 20.1 | Very Low | 0 |
| 47 | Taylor County | 19 | Very Low | 0 |
| 48 | Marinette County | 18.8 | Very Low | 0 |
| 49 | Portage County | 18.3 | Very Low | 0 |
| 50 | Forest County | 17.6 | Very Low | 0 |
| 51 | Ashland County | 17.4 | Very Low | 0 |
| 52 | Dunn County | 17.1 | Very Low | 0 |
| 53 | Waupaca County | 16.8 | Very Low | 0 |
| 54 | Milwaukee County | 16.7 | Very Low | 0 |
| 55 | Eau Claire County | 16.4 | Very Low | 0 |
| 56 | Douglas County | 15.7 | Very Low | 0 |
| 57 | Iron County | 15.6 | Very Low | 0 |
| 58 | Wood County | 14.4 | Very Low | 0 |
| 59 | St. Croix County | 13.4 | Very Low | 0 |
| 60 | Florence County | 13.2 | Very Low | 0 |
| 61 | Oconto County | 13.1 | Very Low | 0 |
| 62 | Chippewa County | 12.9 | Very Low | 0 |
| 63 | Brown County | 0 | No Rating | 0 |
| 64 | Calumet County | 0 | No Rating | 0 |
| 65 | Door County | 0 | No Rating | 0 |
| 66 | Kewaunee County | 0 | No Rating | 0 |
| 67 | Manitowoc County | 0 | No Rating | 0 |
| 68 | Marathon County | 0 | No Rating | 0 |
| 69 | Menominee County | 0 | No Rating | 0 |
| 70 | Outagamie County | 0 | No Rating | 0 |
| 71 | Shawano County | 0 | No Rating | 0 |
| 72 | Sheboygan County | 0 | No Rating | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Drought risk nationally:
Other hazard risks in Wisconsin:
Frequently asked questions
What is the highest drought risk county in Wisconsin?
Grant County, WI has the highest drought risk in Wisconsin, with a FEMA National Risk Index score of 64.7 out of 100 (rated "Relatively Moderate").
What causes drought risk in Wisconsin?
Drought risk captures expected annual losses from prolonged precipitation deficits affecting agriculture, water supply, and ecosystems. High scores cover the western Great Plains, Southwest, and California's Central Valley. Climate change is increasing drought frequency and severity across much of the US, with multi-year droughts becoming more common in the West.