Updated April 2026
Flood Risk in Montana
Montana has 57 counties with flood risk data, 17 total NFIP flood insurance claims, and an average risk score of 10 out of 100.
57
Counties
17
NFIP Claims
$472,357
Total Payouts
10
Avg Risk Score
Grade Distribution
A
57
counties
B
0
counties
C
0
counties
D
0
counties
F
0
counties
Riskiest in Montana
| County | Grade | Score |
|---|---|---|
| Stillwater | A | 11 |
| Treasure | A | 11 |
| Fort Peck Indian Reservation | A | 11 |
| Park | A | 11 |
| Valley | A | 11 |
Safest in Montana
| County | Grade | Score |
|---|---|---|
| Beaverhead | A | 8 |
| Carter | A | 8 |
| Fallon | A | 8 |
| Madison | A | 8 |
| Wibaux | A | 8 |
All 57 Counties in Montana
Sorted by flood risk score, highest to lowest.
| # | County | Grade | Score | Claims | Payouts | Disasters |
|---|---|---|---|---|---|---|
| 1 | Stillwater | A | 11 | 1 | $34,766 | 6 |
| 2 | Treasure | A | 11 | 0 | $0 | 6 |
| 3 | Fort Peck Indian Reservation | A | 11 | 0 | $0 | 6 |
| 4 | Park | A | 11 | 4 | $82,025 | 6 |
| 5 | Valley | A | 11 | 1 | $0 | 7 |
| 6 | Carbon | A | 10 | 2 | $304,032 | 5 |
| 7 | Daniels | A | 10 | 0 | $0 | 5 |
| 8 | Fergus | A | 10 | 0 | $0 | 5 |
| 9 | Garfield | A | 10 | 0 | $0 | 4 |
| 10 | Golden Valley | A | 10 | 0 | $0 | 4 |
| 11 | Musselshell | A | 10 | 0 | $0 | 5 |
| 12 | Petroleum | A | 10 | 0 | $0 | 5 |
| 13 | Phillips | A | 10 | 0 | $0 | 4 |
| 14 | Blaine | A | 10 | 1 | $5,292 | 5 |
| 15 | Hill | A | 10 | 2 | $123 | 5 |
| 16 | Flathead | A | 10 | 0 | $0 | 4 |
| 17 | Broadwater | A | 10 | 0 | $0 | 4 |
| 18 | Dawson | A | 10 | 0 | $0 | 4 |
| 19 | Jefferson | A | 10 | 0 | $0 | 4 |
| 20 | Pondera | A | 10 | 0 | $0 | 5 |
| 21 | Rosebud | A | 10 | 0 | $0 | 5 |
| 22 | Sanders | A | 10 | 0 | $0 | 5 |
| 23 | McCone | A | 10 | 0 | $0 | 4 |
| 24 | Lewis and Clark | A | 10 | 3 | $19,536 | 4 |
| 25 | Missoula | A | 10 | 0 | $0 | 4 |
| 26 | Powell | A | 10 | 0 | $0 | 5 |
| 27 | Toole | A | 10 | 0 | $0 | 4 |
| 28 | Glacier | A | 10 | 0 | $0 | 4 |
| 29 | Lincoln | A | 10 | 0 | $0 | 4 |
| 30 | Roosevelt | A | 9 | 0 | $0 | 2 |
| 31 | Sheridan | A | 9 | 0 | $0 | 2 |
| 32 | Sweet Grass | A | 9 | 0 | $0 | 2 |
| 33 | Yellowstone | A | 9 | 1 | $10,347 | 3 |
| 34 | Lake | A | 9 | 0 | $0 | 3 |
| 35 | Prairie | A | 9 | 0 | $0 | 2 |
| 36 | Ravalli | A | 9 | 0 | $0 | 2 |
| 37 | Richland | A | 9 | 1 | $11,812 | 2 |
| 38 | Wheatland | A | 9 | 0 | $0 | 3 |
| 39 | Chouteau | A | 9 | 0 | $0 | 3 |
| 40 | Custer | A | 9 | 1 | $4,424 | 3 |
| 41 | Liberty | A | 9 | 0 | $0 | 3 |
| 42 | Big Horn | A | 9 | 0 | $0 | 2 |
| 43 | Cascade | A | 9 | 0 | $0 | 3 |
| 44 | Deer Lodge | A | 9 | 0 | $0 | 3 |
| 45 | Gallatin | A | 9 | 0 | $0 | 2 |
| 46 | Granite | A | 9 | 0 | $0 | 3 |
| 47 | Judith Basin | A | 9 | 0 | $0 | 2 |
| 48 | Meagher | A | 9 | 0 | $0 | 3 |
| 49 | Mineral | A | 9 | 0 | $0 | 2 |
| 50 | Powder River | A | 9 | 0 | $0 | 3 |
| 51 | Silver Bow | A | 9 | 0 | $0 | 2 |
| 52 | Teton | A | 9 | 0 | $0 | 3 |
| 53 | Beaverhead | A | 8 | 0 | $0 | 1 |
| 54 | Carter | A | 8 | 0 | $0 | 1 |
| 55 | Fallon | A | 8 | 0 | $0 | 1 |
| 56 | Madison | A | 8 | 0 | $0 | 1 |
| 57 | Wibaux | A | 8 | 0 | $0 | 1 |