Counties with the Lowest Natural Hazard Risk in California
The top 25 of 58 California counties on GIS Map, ranked by lowest FEMA National Risk Index score (0-100, national percentile).
| # | County | Risk Index score |
|---|---|---|
| 1 | Alpine County | 10.6 |
| 2 | Sierra County | 31.5 |
| 3 | Modoc County | 39.7 |
| 4 | Mono County | 46.5 |
| 5 | Lassen County | 73.1 |
| 6 | Glenn County | 74.4 |
| 7 | Amador County | 79.2 |
| 8 | Inyo County | 79.3 |
| 9 | Trinity County | 79.5 |
| 10 | Yuba County | 80.9 |
| 11 | Colusa County | 81.1 |
| 12 | Sutter County | 83.7 |
| 13 | San Benito County | 85.2 |
| 14 | Tuolumne County | 85.2 |
| 15 | Mariposa County | 86.4 |
| 16 | Plumas County | 86.4 |
| 17 | Calaveras County | 86.6 |
| 18 | Tehama County | 88.9 |
| 19 | Siskiyou County | 89.0 |
| 20 | Nevada County | 89.9 |
| 21 | El Dorado County | 91.4 |
| 22 | Yolo County | 91.4 |
| 23 | Kings County | 92.4 |
| 24 | Lake County | 93.0 |
| 25 | Placer County | 93.1 |
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 Lowest Natural Hazard Risk in California”, https://gismap.land/rankings/california/lowest-risk-counties. Figures from FEMA National Risk Index (December 2025).
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