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County Disaster Risk Index
This is our own calculation, not a government figure. For all 3,222 U.S. counties we combine four kinds of disaster history — federal declarations, earthquakes, wildfires and severe storms — into a single 0–100 score, where 100 means "more history than any other county". It describes the record, not the future, and it is not a statement about whether a place is safe to live in. How the score is built →
Look up a county
Pick a state, then a county, for its full profile.
Highest composite score
1San Bernardino County, CA982San Diego County, CA983Riverside County, CA934DeKalb County, AL935Orange County, CA936Shasta County, CA937Santa Barbara County, CA938Los Angeles County, CA929Okanogan County, WA9210Sonoma County, CA8811Hawaii County, HI8712Santa Cruz County, CA8713Coconino County, AZ8614Kern County, CA8415Ventura County, CA8316Lewis County, WA8217Lincoln County, OK8218Washoe County, NV8219Mariposa County, CA8220Reynolds County, MO8221Monterey County, CA8222Oklahoma County, OK8223Napa County, CA8124Yavapai County, AZ8125Jefferson County, AL8126Lake County, CA8027Poinsett County, AR7928Humboldt County, CA7929Pawnee County, OK7930San Luis Obispo County, CA7831Cameron Parish, LA7832El Dorado County, CA7833Butte County, CA7834Mason County, WA7835Miami-Dade County, FL7736Jefferson County, WA7737Scott County, MO7738Logan County, OK7639Volusia County, FL7640Placer County, CA76
Most federal declarations
1.Los Angeles County, CA88 declarations2.Riverside County, CA66 declarations3.San Bernardino County, CA61 declarations4.Ascension Parish, LA58 declarations5.Lafourche Parish, LA54 declarations6.St. Martin Parish, LA54 declarations7.Collier County, FL54 declarations8.Terrebonne Parish, LA53 declarations9.Ventura County, CA53 declarations10.Chelan County, WA53 declarations
Most large wildfires
1.Yukon-Koyukuk Census Area, AK982 fires2.Idaho County, ID264 fires3.Coconino County, AZ173 fires4.Southeast Fairbanks Census Area, AK165 fires5.Riverside County, CA163 fires6.Elko County, NV162 fires7.Los Angeles County, CA150 fires8.Kern County, CA130 fires9.Bethel Census Area, AK122 fires10.San Diego County, CA115 fires
Most recorded earthquakes
1.Matanuska-Susitna Borough, AK228 quakes2.Kenai Peninsula Borough, AK186 quakes3.San Bernardino County, CA153 quakes4.Hawaii County, HI140 quakes5.Lake and Peninsula Borough, AK136 quakes6.Mono County, CA128 quakes7.Kern County, CA119 quakes8.Imperial County, CA115 quakes9.Denali Borough, AK98 quakes10.Skamania County, WA90 quakes
Most notable storm events
A composite score blends things that are not really comparable (an earthquake is not a flood), so treat it as a rough summary and read the individual layers below it. Sources: FEMA, USGS, NIFC, NOAA/NCEI. Full method: /methodology/risk.