| # | County | Risk Index score |
|---|---|---|
| 1 | St. Louis County | 99.3 |
| 2 | St. Louis city | 98.7 |
| 3 | Jackson County | 96.5 |
| 4 | St. Charles County | 92.6 |
| 5 | Jefferson County | 90.5 |
| 6 | Greene County | 90.1 |
| 7 | Clay County | 89.8 |
| 8 | Camden County | 88.4 |
| 9 | Boone County | 85.8 |
| 10 | Cape Girardeau County | 85.7 |
| 11 | Jasper County | 85.6 |
| 12 | Taney County | 84.0 |
| 13 | Franklin County | 83.5 |
| 14 | Butler County | 83.1 |
| 15 | Dunklin County | 80.1 |
| 16 | Scott County | 80.1 |
| 17 | St. Francois County | 78.5 |
| 18 | Pemiscot County | 78.0 |
| 19 | Howell County | 77.8 |
| 20 | Newton County | 77.5 |
| 21 | Stone County | 76.7 |
| 22 | Morgan County | 75.5 |
| 23 | Barry County | 75.1 |
| 24 | Cass County | 74.9 |
| 25 | Buchanan County | 74.4 |
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 Natural Hazard Risk in Missouri”, https://gismap.land/rankings/missouri/highest-risk-counties. Figures from FEMA National Risk Index (December 2025).
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