Most tornado-prone US counties
Counties with the highest FEMA tornado risk. Ratings from FEMA's National Risk Index.
- 1Cook County, ILVery High
- 2Harris County, TXVery High
- 3Dallas County, TXVery High
- 4Bexar County, TXVery High
- 5Shelby County, TNVery High
- 6Tarrant County, TXVery High
- 7Wayne County, MIVery High
- 8Collin County, TXVery High
- 9Hillsborough County, FLVery High
- 10St. Louis city, MOVery High
- 11Orange County, FLVery High
- 12Milwaukee County, WIVery High
- 13Hennepin County, MNVery High
- 14Jefferson County, KYVery High
- 15Pinellas County, FLVery High
- 16Cuyahoga County, OHVery High
- 17East Baton Rouge Parish, LAVery High
- 18Oklahoma County, OKVery High
- 19Tulsa County, OKVery High
- 20Travis County, TXVery High
- 21DuPage County, ILVery High
- 22Jefferson County, ALVery High
- 23Oakland County, MIVery High
- 24Marion County, INVery High
- 25Fort Bend County, TXVery High
- 26Will County, ILVery High
- 27Denton County, TXVery High
- 28Pulaski County, ARVery High
- 29Macomb County, MIVery High
- 30Sedgwick County, KSVery High
- 31Jackson County, MOVery High
- 32Hamilton County, OHVery High
- 33Lake County, ILVery High
- 34Lake County, INVery High
- 35Douglas County, NEVery High
- 36Montgomery County, TXVery High
- 37Johnson County, KSVery High
- 38Los Angeles County, CARelatively High
- 39Miami-Dade County, FLRelatively High
- 40Philadelphia County, PARelatively High
- 41Broward County, FLRelatively High
- 42St. Louis County, MORelatively High
- 43Kings County, NYRelatively High
- 44Palm Beach County, FLRelatively High
- 45Queens County, NYRelatively High
- 46Hidalgo County, TXRelatively High
- 47Brevard County, FLRelatively High
- 48Horry County, SCRelatively High
- 49Sarasota County, FLRelatively High
- 50Allegheny County, PARelatively High
Source: FEMA National Risk Index. Risk ratings reflect expected annual loss from the hazard, not a forecast. See each county page for its full hazard profile + a decade of outage history.