OpenFEMA data as of Oct 29, 2026 5,286 declarations · 3,266 counties · 59 states & territories Advertise
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58 counties

California: declarations by county

Counties, parishes, boroughs and county-equivalents of California named in at least one federal declaration. Statewide declarations are counted on the state page, not here.

58 counties
CountyDeclarationsMajor disastersMost common hazardLatestPopulation 2024
Los Angeles County8835Fire20259,757,179
Riverside County6631Fire20262,529,933
San Bernardino County6130Fire20242,214,281
Ventura County5329Fire2026835,427
San Diego County5127Fire20243,298,799
Orange County4324Fire20263,170,435
Santa Barbara County4327Fire2024444,500
Shasta County4120Fire2023181,121
Kern County4019Fire2024922,529
Butte County3920Fire2024208,334
Napa County3924Fire2023132,727
Sonoma County3623Fire2023485,375
Lake County3520Fire202467,764
Santa Cruz County3422Severe Storm2024262,406
Mendocino County3325Flood202389,175
Monterey County3323Severe Storm2024436,251
Trinity County3221Severe Storm202315,642
Solano County3022Flood2023455,101
San Luis Obispo County2822Flood2024281,843
Yuba County2818Fire202387,469
El Dorado County2716Severe Storm2023192,823
Humboldt County2722Flood2023132,380
Marin County2622Severe Storm2023256,400
Placer County2613Fire2023433,822
Madera County2514Fire2023165,432
San Joaquin County2519Flood2023816,108
Santa Clara County2516Severe Storm20231,926,325
Tehama County2517Flood202464,451
Alameda County2420Severe Storm20231,649,060
Calaveras County2415Severe Storm202646,505
Mariposa County2410Fire202417,048
San Mateo County2417Severe Storm2023742,893
Nevada County2316Severe Storm2023102,195
Plumas County2315Flood202318,834
Sacramento County2317Flood20231,611,231
Siskiyou County2314Fire202342,498
Tulare County2315Flood2023483,546
Tuolumne County2215Flood202653,893
Yolo County2216Severe Storm2023225,251
Amador County2115Severe Storm202342,026
Contra Costa County2116Flood20231,172,607
Del Norte County2118Flood202327,009
Glenn County2116Flood202428,304
Fresno County2013Flood20231,024,125
Stanislaus County2014Flood2023556,972
Sutter County2015Severe Storm202498,545
Colusa County1915Severe Storm202322,074
Kings County1914Flood2023154,913
Lassen County1913Fire202128,340
Merced County1914Severe Storm2023296,774
San Benito County1813Flood202369,159
Modoc County1713Flood20238,491
Inyo County1611Flood202318,485
Sierra County1612Flood20233,113
Alpine County1510Flood20231,099
Imperial County1512Flood2023181,724
Mono County1410Flood202312,991
San Francisco County117Severe Storm2023827,526