Tornado Risk by County in Iowa
Iowa: 99 counties covered
61 of 99 Iowa counties have recorded at least one violent (EF4-5) tornado since 1950, per NOAA's Storm Prediction Center. Every county page below links to storm-shelter cost and, where one exists, its state rebate program.
- Polk County
- Linn County
- Scott County
- Johnson County
- Black Hawk County
- Dallas County
- Woodbury County
- Story County
- Dubuque County
- Pottawattamie County
- Warren County
- Clinton County
- Cerro Gordo County
- Muscatine County
- Marshall County
- Des Moines County
- Jasper County
- Webster County
- Sioux County
- Wapello County
- Marion County
- Lee County
- Boone County
- Plymouth County
- Benton County
- Bremer County
- Washington County
- Mahaska County
- Jones County
- Buena Vista County
- Buchanan County
- Carroll County
- Winneshiek County
- Jackson County
- Henry County
- Fayette County
- Poweshiek County
- Cedar County
- Dickinson County
- Delaware County
- Madison County
- Clayton County
- Tama County
- Clay County
- Hardin County
- Iowa County
- Crawford County
- Jefferson County
- Page County
- Floyd County
- Hamilton County
- Mills County
- Harrison County
- Kossuth County
- O'Brien County
- Allamakee County
- Butler County
- Cass County
- Wright County
- Grundy County
- Lyon County
- Appanoose County
- Union County
- Shelby County
- Chickasaw County
- Cherokee County
- Guthrie County
- Mitchell County
- Louisa County
- Hancock County
- Winnebago County
- Montgomery County
- Franklin County
- Keokuk County
- Calhoun County
- Humboldt County
- Sac County
- Clarke County
- Howard County
- Davis County
- Emmet County
- Palo Alto County
- Lucas County
- Greene County
- Monona County
- Decatur County
- Adair County
- Monroe County
- Worth County
- Van Buren County
- Pocahontas County
- Ida County
- Wayne County
- Fremont County
- Osceola County
- Taylor County
- Audubon County
- Ringgold County
- Adams County