Highest climate-risk ZIP codes in California
Top 25 highest FEMA NRI climate-risk counties in California (one representative ZIP per county). #1 is 90011 (Los Angeles) at score 100.0. Compare hazard exposure on US5.
FEMA’s National Risk Index is published at the county level on US5, so every ZIP in the same county shares the same composite score. This board shows one representative ZIP per county (the most populous code in that county) ranked by NRI — a relative signal of natural-hazard exposure for planning and insurance context.
Highest county scores on this board: Los Angeles County (90011) at 100.0; Riverside County (92503) at 99.9; San Bernardino County (92336) at 99.8.
Open a representative ZIP for flood, wildfire, and hurricane component scores, plus a plain-language risk summary.
Open any ZIP for a full demographics, income, and housing profile, or return to the California state page for the complete ZIP table.
Ranked counties (representative ZIP)
FEMA NRI is county-level data. Each row shows the most populous ZIP in that county as a representative entry.
| # | ZIP | City | County | NRI risk score | Population | Income | Home value |
|---|---|---|---|---|---|---|---|
| 1 | 90011 | Los Angeles | Los Angeles County | 100.0 | 102,784 | $53,781 | $575,200 |
| 2 | 92503 | Riverside | Riverside County | 99.9 | 88,242 | $91,523 | $556,300 |
| 3 | 92336 | Fontana | San Bernardino County | 99.8 | 103,393 | $121,989 | $604,600 |
| 4 | 92683 | Westminster | Orange County | 99.8 | 90,140 | $82,703 | $820,000 |
| 5 | 94544 | Hayward | Alameda County | 99.8 | 76,739 | $108,358 | $801,900 |
| 6 | 95035 | Milpitas | Santa Clara County | 99.7 | 78,479 | $176,723 | $1,180,700 |
| 7 | 91911 | Chula Vista | San Diego County | 99.7 | 84,619 | $79,334 | $602,000 |
| 8 | 94112 | San Francisco | San Francisco County | 99.5 | 80,133 | $130,906 | $1,159,600 |
| 9 | 94565 | Pittsburg | Contra Costa County | 99.5 | 99,933 | $95,035 | $563,300 |
| 10 | 93033 | Oxnard | Ventura County | 99.4 | 80,482 | $85,848 | $549,400 |
| 11 | 93722 | Fresno | Fresno County | 99.3 | 84,500 | $77,335 | $350,700 |
| 12 | 94080 | South San Francisco | San Mateo County | 99.2 | 65,036 | $135,966 | $1,159,500 |
| 13 | 94928 | Rohnert Park | Sonoma County | 99.1 | 46,463 | $96,622 | $634,700 |
| 14 | 93458 | Santa Maria | Santa Barbara County | 99.0 | 59,126 | $73,518 | $460,300 |
| 15 | 93307 | Bakersfield | Kern County | 98.9 | 88,233 | $52,572 | $238,400 |
| 16 | 93905 | Salinas | Monterey County | 98.7 | 64,596 | $75,716 | $570,000 |
| 17 | 95206 | Stockton | San Joaquin County | 98.6 | 67,501 | $79,751 | $388,500 |
| 18 | 95823 | Sacramento | Sacramento County | 98.1 | 83,254 | $63,701 | $372,100 |
| 19 | 95076 | Interlaken | Santa Cruz County | 97.8 | 82,409 | $86,685 | $767,200 |
| 20 | 93257 | Porterville | Tulare County | 97.0 | 79,340 | $58,261 | $276,400 |
| 21 | 94533 | Fairfield | Solano County | 97.0 | 78,537 | $85,990 | $497,300 |
| 22 | 95355 | Modesto | Stanislaus County | 96.9 | 60,470 | $83,460 | $447,600 |
| 23 | 93635 | Los Banos | Merced County | 96.9 | 49,232 | $70,666 | $423,900 |
| 24 | 95503 | Pine Hills | Humboldt County | 96.8 | 24,442 | $76,708 | $411,500 |
| 25 | 92243 | El Centro | Imperial County | 96.5 | 48,556 | $55,890 | $286,100 |
Frequently asked questions
Which areas in California have the highest climate or disaster risk?
FEMA NRI scores are county-level on US5. Los Angeles County ranks near the top at 100.0 (representative ZIP 90011). Higher scores indicate greater relative natural-hazard exposure.
How does US5 rank ZIP codes in California?
We rank one representative ZIP per county (highest population in the county) by FEMA NRI composite score from high to low. NRI is county-level data, so all ZIPs in a county share the same score.
Where can I explore all ZIP codes in California?
Visit the California state page for the full ZIP table, demographics summary, and sortable income/housing columns.