| # | County | Expected annual loss |
|---|---|---|
| 1 | Flathead County | $75.4M |
| 2 | Gallatin County | $65.8M |
| 3 | Yellowstone County | $60.1M |
| 4 | Missoula County | $56.7M |
| 5 | Cascade County | $55.3M |
| 6 | Ravalli County | $37.0M |
| 7 | Lewis and Clark County | $34.8M |
| 8 | Park County | $27.8M |
| 9 | Richland County | $23.3M |
| 10 | Lake County | $23.0M |
| 11 | Dawson County | $21.4M |
| 12 | Carbon County | $16.3M |
| 13 | Lincoln County | $15.6M |
| 14 | Madison County | $15.3M |
| 15 | Silver Bow County | $14.4M |
| 16 | Fergus County | $13.7M |
| 17 | Hill County | $13.2M |
| 18 | Big Horn County | $11.2M |
| 19 | Valley County | $11.2M |
| 20 | Custer County | $10.3M |
| 21 | Roosevelt County | $10.1M |
| 22 | Chouteau County | $9.9M |
| 23 | Beaverhead County | $9.9M |
| 24 | Glacier County | $9.8M |
| 25 | Stillwater County | $9.2M |
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 Montana”, https://gismap.land/rankings/montana/highest-expected-loss-counties. Figures from FEMA National Risk Index (December 2025).
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