# Counties in California by national Risk Index score (FEMA), 2025

All 58 values come from Federal Emergency Management Agency for 2025, so the places are comparable.

- Indicator id: `nri_risk_index_score`
- Unit: index
- Definition: FEMA's composite natural hazard risk score for a US county, from 0 to 100: the county's national percentile rank among all counties for risk, which combines expected annual losses from 18 natural hazards with social vulnerability and community resilience. Higher means more risk.
- Source: Federal Emergency Management Agency, National Risk Index Counties, National Risk Index Score Composite (RISK_SCORE) (https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355)
- Publisher page: https://invokely.ai/en/publishers/fema
- Retrieved: 2026-10-12
- Citation: Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties, National Risk Index Score Composite (RISK_SCORE). https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Retrieved 2026-10-12. This product uses the FEMA National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
- Web page: https://invokely.ai/rankings/national-risk-index-score/california-counties

| Rank | Place | index |
|---:|---|---:|
| 1 | Los Angeles County | 100 |
| 2 | Riverside County | 99.9 |
| 3 | San Bernardino County | 99.8 |
| 4 | Orange County | 99.8 |
| 5 | Alameda County | 99.8 |
| 6 | Santa Clara County | 99.8 |
| 7 | San Diego County | 99.7 |
| 8 | San Francisco County | 99.5 |
| 9 | Contra Costa County | 99.5 |
| 10 | Ventura County | 99.4 |
| 11 | Fresno County | 99.3 |
| 12 | San Mateo County | 99.2 |
| 13 | Sonoma County | 99.1 |
| 14 | Santa Barbara County | 99 |
| 15 | Kern County | 98.9 |
| 16 | Monterey County | 98.7 |
| 17 | San Joaquin County | 98.6 |
| 18 | Sacramento County | 98.1 |
| 19 | Santa Cruz County | 97.8 |
| 20 | Tulare County | 97 |
| 21 | Solano County | 97 |
| 22 | Stanislaus County | 96.9 |
| 23 | Merced County | 96.9 |
| 24 | Humboldt County | 96.8 |
| 25 | Imperial County | 96.5 |
| 26 | Madera County | 96.4 |
| 27 | Marin County | 96.4 |
| 28 | San Luis Obispo County | 95.9 |
| 29 | Napa County | 95.3 |
| 30 | Del Norte County | 94.4 |
| 31 | Mendocino County | 94.3 |
| 32 | Butte County | 93.9 |
| 33 | Shasta County | 93.4 |
| 34 | Placer County | 93.1 |
| 35 | Lake County | 93 |
| 36 | Kings County | 92.4 |
| 37 | El Dorado County | 91.4 |
| 38 | Yolo County | 91.4 |
| 39 | Nevada County | 89.9 |
| 40 | Siskiyou County | 89 |
| 41 | Tehama County | 88.9 |
| 42 | Calaveras County | 86.6 |
| 43 | Mariposa County | 86.4 |
| 44 | Plumas County | 86.4 |
| 45 | San Benito County | 85.2 |
| 46 | Tuolumne County | 85.2 |
| 47 | Sutter County | 83.7 |
| 48 | Colusa County | 81.1 |
| 49 | Yuba County | 80.9 |
| 50 | Trinity County | 79.5 |
| 51 | Inyo County | 79.3 |
| 52 | Amador County | 79.2 |
| 53 | Glenn County | 74.4 |
| 54 | Lassen County | 73.1 |
| 55 | Mono County | 46.5 |
| 56 | Modoc County | 39.7 |
| 57 | Sierra County | 31.5 |
| 58 | Alpine County | 10.6 |