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Most Disaster-Prone Counties
Ranked by the number of federal disaster declarations since 1953. This is a count of official declarations — it reflects federal-aid history and how often events crossed the declaration threshold, not a forecast or a risk score.
1Los Angeles County · CA88 declarations2Riverside County · CA66 declarations3San Bernardino County · CA61 declarations4Ascension Parish · LA58 declarations5Collier County · FL54 declarations6St. Martin Parish · LA54 declarations7Lafourche Parish · LA54 declarations8Ventura County · CA53 declarations9Chelan County · WA53 declarations10Terrebonne Parish · LA53 declarations11Oklahoma County · OK52 declarations12Washoe County · NV52 declarations13St. Charles Parish · LA52 declarations14Livingston Parish · LA52 declarations15San Diego County · CA51 declarations16St. Tammany Parish · LA50 declarations17Jefferson Parish · LA50 declarations18Manatee County · FL50 declarations19Bay County · FL49 declarations20St. Mary Parish · LA49 declarations21Rapides Parish · LA49 declarations22Lawrence County · KY49 declarations23Assumption Parish · LA49 declarations24Breathitt County · KY49 declarations25Magoffin County · KY49 declarations26Sarasota County · FL48 declarations27Clay County · KY48 declarations28Floyd County · KY48 declarations29Owsley County · KY48 declarations30Johnson County · KY48 declarations31St. Bernard Parish · LA48 declarations32Tangipahoa Parish · LA48 declarations33Perry County · KY47 declarations34Pike County · KY47 declarations35Pointe Coupee Parish · LA47 declarations36Creek County · OK47 declarations37Logan County · OK47 declarations38Iberville Parish · LA47 declarations39Gulf County · FL47 declarations40Hillsborough County · FL47 declarations41Monroe County · FL47 declarations42East Baton Rouge Parish · LA47 declarations43Vermilion Parish · LA46 declarations44St. Landry Parish · LA46 declarations45Franklin County · FL46 declarations46St. John the Baptist Parish · LA46 declarations47Plaquemines Parish · LA45 declarations48Pinellas County · FL45 declarations49Lee County · FL45 declarations50Lincoln County · OK45 declarations51Brevard County · FL45 declarations52Catahoula Parish · LA45 declarations53Wakulla County · FL45 declarations54West Feliciana Parish · LA44 declarations55St. James Parish · LA44 declarations56Caddo County · OK44 declarations57McClain County · OK44 declarations58Levy County · FL44 declarations59Volusia County · FL44 declarations60Pasco County · FL44 declarations61Ouachita Parish · LA44 declarations62Dixie County · FL44 declarations63Pottawatomie County · OK44 declarations64Broward County · FL43 declarations65Miami-Dade County · FL43 declarations66Lafayette Parish · LA43 declarations67Santa Rosa County · FL43 declarations68Cleveland County · OK43 declarations69Iberia Parish · LA43 declarations70Knott County · KY43 declarations71Beauregard Parish · LA43 declarations72Calhoun County · FL43 declarations73Santa Barbara County · CA43 declarations74Orange County · CA42 declarations75York County · ME42 declarations76Walton County · FL42 declarations77Jefferson Davis Parish · LA42 declarations78Lee County · KY42 declarations79Charlotte County · FL42 declarations80Calcasieu Parish · LA42 declarations81Osage County · OK42 declarations82Polk County · FL42 declarations83Avoyelles Parish · LA42 declarations84Okanogan County · WA42 declarations85Franklin Parish · LA42 declarations86Acadia Parish · LA42 declarations87Harris County · TX41 declarations88Liberty County · FL41 declarations89Walsh County · ND41 declarations90Washington Parish · LA41 declarations91Palm Beach County · FL41 declarations92Natchitoches Parish · LA41 declarations93East Feliciana Parish · LA41 declarations94Okaloosa County · FL41 declarations95Shasta County · CA41 declarations96Martin County · FL41 declarations97Duval County · FL41 declarations98Putnam County · FL41 declarations99Canadian County · OK40 declarations100Grafton County · NH40 declarations
Source: OpenFEMA Disaster Declarations Summaries.