Arborlook
Risk & Response
by Arborlook Insights

California

Statewide risk profile

39.3M
Population
58
Counties
508
Departments
3,457
Stations

Top Hazards by Life-Safety Loss ($/yr)

Earthquake
$4.7B
Heat Wave
$333.1M
Avalanche
$258.7M
Tsunami
$142.4M
Wildfire
$80.6M

County Rankings

Counties in California ranked by risk. Click column headers to sort. Click a county to see its departments.

NRI Rating is from FEMA's National Risk Index, which measures community risk across 18 natural hazards using expected annual losses, social vulnerability, and community resilience. Life-Safety Loss uses FEMA's Value of Statistical Life ($13.7M per expected fatality) to estimate annual risk to human life.

Department and station counts are derived from boundaries self-reported through NERIS Public and may not reflect current service areas. Risk metrics are computed from census tract data and are not affected by boundary accuracy. See full methodology.

Showing 58 counties
County Population Departments Life-Safety Loss NRI Rating
Los Angeles County 9.8M 44 $1.7B Relatively High
Alameda County 1.6M 12 $528.2M Very High
Santa Clara County 1.9M 15 $378.2M Very High
Orange County 3.2M 28 $330.4M Relatively High
San Francisco County 830,235 2 $313.4M Relatively High
San Bernardino County 2.2M 36 $293.8M Very High
Riverside County 2.5M 31 $229.1M Very High
Contra Costa County 1.2M 10 $165.3M Very High
San Mateo County 742,340 8 $164.0M Very High
San Diego County 3.3M 49 $145.5M Relatively Moderate
Ventura County 837,469 6 $127.8M Very High
Del Norte County 27,107 3 $112.6M Very High
Placer County 419,156 11 $99.3M Relatively Moderate
Sonoma County 485,040 6 $85.0M Very High
Kern County 915,075 12 $83.5M Relatively Moderate
Santa Barbara County 443,701 4 $78.6M Relatively High
San Joaquin County 797,334 24 $77.6M Relatively High
Santa Cruz County 264,926 11 $65.1M Very High
Monterey County 437,613 27 $59.5M Relatively High
Humboldt County 134,541 18 $59.0M Very High
Fresno County 1.0M 24 $42.8M Relatively Moderate
Tulare County 478,693 16 $38.0M Relatively High
El Dorado County 192,662 11 $36.0M Relatively High
Sacramento County 1.6M 10 $35.8M Relatively Low
Solano County 451,918 13 $31.0M Relatively High
Imperial County 180,202 7 $29.9M Very High
Stanislaus County 553,990 21 $29.3M Relatively Moderate
Marin County 257,969 5 $29.3M Very High
Inyo County 18,739 13 $25.2M Very High
Lake County 68,152 7 $24.5M Very High
Merced County 290,201 12 $24.2M Relatively High
Napa County 134,869 7 $18.9M Very High
Nevada County 102,481 9 $18.5M Very High
Amador County 41,428 9 $15.9M Very High
Kings County 153,298 10 $15.4M Relatively High
San Benito County 67,290 6 $14.2M Very High
Madera County 160,940 14 $13.1M Very High
San Luis Obispo County 281,555 13 $12.8M Relatively High
Mendocino County 90,244 16 $11.7M Very High
Butte County 207,929 9 $11.6M Relatively High
Yolo County 220,564 24 $11.4M Relatively Moderate
Siskiyou County 43,466 24 $11.0M Very High
Mariposa County 17,082 9 $9.8M Very High
Shasta County 181,436 13 $9.7M Relatively High
Mono County 13,148 12 $6.6M Very High
Glenn County 28,494 7 $4.7M Very High
Tuolumne County 54,498 15 $4.6M Very High
Tehama County 65,167 6 $4.3M Very High
Calaveras County 46,248 14 $3.6M Very High
Sutter County 98,857 7 $3.6M Relatively Moderate
Yuba County 84,507 13 $2.8M Relatively High
Colusa County 21,984 6 $2.1M Very High
Alpine County 1,616 6 $1.9M Very High
Lassen County 30,356 10 $1.7M Very High
Plumas County 19,423 16 $1.6M Very High
Trinity County 15,860 15 $1.5M Very High
Sierra County 2,746 3 $783.5K Very High
Modoc County 8,600 6 $366.0K Very High
No counties match your search.

Risk Snapshot

12.0%
Poverty Rate
15.7%
Age 65+
11.6%
Disability Rate
6.6%
Uninsured
56.0%
Pre-1980 Housing
3.5%
Mobile Homes
7.5%
Vacancy Rate
1.3%
Wood Heat
$107,925
Median HH Income

FEMA Disaster Declarations

646
Last 10 Years
1016
Last 25 Years
Fire
Most Frequent

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