| # | County | Expected annual loss |
|---|---|---|
| 1 | Milwaukee County | $342.1M |
| 2 | Dane County | $182.0M |
| 3 | Waukesha County | $138.3M |
| 4 | Brown County | $103.7M |
| 5 | Winnebago County | $75.3M |
| 6 | Marathon County | $74.9M |
| 7 | Rock County | $73.3M |
| 8 | Racine County | $63.8M |
| 9 | Kenosha County | $63.5M |
| 10 | Outagamie County | $59.0M |
| 11 | La Crosse County | $53.7M |
| 12 | Columbia County | $51.4M |
| 13 | Washington County | $48.4M |
| 14 | Eau Claire County | $47.9M |
| 15 | Fond du Lac County | $44.1M |
| 16 | Jefferson County | $41.8M |
| 17 | Marinette County | $41.3M |
| 18 | Walworth County | $39.7M |
| 19 | Wood County | $39.4M |
| 20 | Sheboygan County | $36.2M |
| 21 | St. Croix County | $36.0M |
| 22 | Portage County | $35.9M |
| 23 | Sauk County | $35.6M |
| 24 | Dodge County | $34.1M |
| 25 | Ozaukee County | $33.1M |
Source: FEMA National Risk Index (December 2025). All counties with data are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Counties with the Highest Expected Annual Loss from Natural Hazards in Wisconsin”, https://gismap.land/rankings/wisconsin/highest-expected-loss-counties. Figures from FEMA National Risk Index (December 2025).
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