Raw event counts favour big, densely populated counties: more people means more reports. Dividing recorded events by population turns that around and shows where severe weather is most concentrated relative to the number of people living there — mostly rural, high-plains and Gulf Coast counties.
Rank County Events per 10k residents Events Population #1 Cherry County, Nebraska 2,661.0 1,463 5,498 #2 Sherman County, Kansas 2,475.2 1,450 5,858 #3 Beaver County, Oklahoma 2,038.6 1,025 5,028 #4 Kit Carson County, Colorado 1,885.2 1,324 7,023 #5 Valley County, Montana 1,658.5 1,247 7,519 #6 Sheridan County, Nebraska 1,635.4 820 5,014 #7 Russell County, Kansas 1,615.5 1,079 6,679 #8 Carson County, Texas 1,568.7 910 5,801 #9 Lincoln County, Colorado 1,547.7 859 5,550 #10 Yuma County, Colorado 1,538.2 1,535 9,979 #11 Gray County, Kansas 1,510.3 861 5,701 #12 Tillman County, Oklahoma 1,405.2 971 6,910 #13 Scott County, Kansas 1,362.6 685 5,027 #14 Harper County, Kansas 1,313.0 709 5,400 #15 Kiowa County, Oklahoma 1,277.6 1,071 8,383 #16 Custer County, Nebraska 1,257.8 1,323 10,518 #17 Pawnee County, Kansas 1,245.1 765 6,144 #18 Alfalfa County, Oklahoma 1,181.5 673 5,696 #19 Thomas County, Kansas 1,175.7 927 7,885 #20 Norton County, Kansas 1,170.0 627 5,359 #21 Ottawa County, Kansas 1,156.6 673 5,819 #22 Crook County, Wyoming 1,125.4 839 7,455 #23 Washington County, Kansas 1,111.5 615 5,533 #24 Pratt County, Kansas 1,095.7 1,000 9,127 #25 Custer County, South Dakota 1,095.4 974 8,892 #26 Ellsworth County, Kansas 1,077.0 685 6,360 #27 Kingman County, Kansas 1,066.0 766 7,186 #28 Tripp County, South Dakota 1,060.4 595 5,611 #29 Haskell County, Texas 1,058.8 574 5,421 #30 Clay County, Nebraska 1,022.1 623 6,095 #31 Cotton County, Oklahoma 1,000.9 549 5,485 #32 Mitchell County, Kansas 1,000.2 578 5,779 #33 Jefferson County, Oklahoma 994.4 535 5,380 #34 Dewey County, South Dakota 991.4 516 5,205 #35 Woodruff County, Arkansas 984.1 593 6,026 #36 Greer County, Oklahoma 982.0 539 5,489 #37 Hansford County, Texas 974.8 499 5,119 #38 Woods County, Oklahoma 959.7 825 8,596 #39 Spink County, South Dakota 956.7 595 6,219 #40 Hartley County, Texas 953.0 497 5,215 #41 Benson County, North Dakota 948.7 551 5,808 #42 Keith County, Nebraska 942.9 775 8,219 #43 Fall River County, South Dakota 932.8 677 7,258 #44 Greenwood County, Kansas 932.6 552 5,919 #45 Stevens County, Kansas 914.4 472 5,162 #46 Morris County, Kansas 904.5 483 5,340 #47 Floyd County, Texas 885.7 462 5,216 #48 Cheyenne County, Nebraska 881.1 840 9,533 #49 Holt County, Nebraska 877.1 886 10,102 #50 Cloud County, Kansas 847.4 754 8,898
Source: NOAA/NCEI Storm Events + U.S. Census ACS · counties with 5,000+ residents and 100+ recorded events