OpenFEMA data as of Oct 29, 2026 5,286 declarations · 3,266 counties · 59 states & territories Advertise
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99 counties

Iowa: declarations by county

Counties, parishes, boroughs and county-equivalents of Iowa named in at least one federal declaration. Statewide declarations are counted on the state page, not here.

99 counties
CountyDeclarationsMajor disastersMost common hazardLatestPopulation 2024
Clayton County2725Flood202316,931
Des Moines County2725Flood202438,411
Pottawattamie County2623Severe Storm202493,529
Buchanan County2523Flood202020,733
Butler County2523Severe Storm202414,156
Harrison County2421Severe Storm202514,626
Johnson County2422Flood2020160,080
Wright County2421Severe Storm202412,729
Cherokee County2320Severe Storm202411,658
Crawford County2320Severe Storm202516,378
Howard County2321Severe Storm20249,360
Iowa County2321Severe Storm202416,423
Linn County2321Flood2020231,762
Palo Alto County2320Severe Storm20248,809
Allamakee County2220Flood202314,184
Audubon County2219Severe Storm20225,562
Buena Vista County2219Severe Storm202420,816
Clinton County2220Flood202046,015
Fayette County2220Flood202019,152
Franklin County2220Flood202410,024
Humboldt County2219Severe Storm20249,617
Jones County2220Severe Storm202021,116
Lee County2220Severe Storm202332,376
Pocahontas County2219Severe Storm20247,006
Story County2220Severe Storm2026102,498
Clay County2118Severe Storm202416,474
Dubuque County2119Flood202499,242
Hamilton County2119Severe Storm202414,856
Jackson County2119Severe Storm202419,390
Muscatine County2119Flood202442,132
Polk County2119Severe Storm2026516,185
Tama County2119Flood202416,738
Union County2118Severe Storm202411,955
Winneshiek County2119Severe Storm202419,723
Black Hawk County2018Flood2020132,348
Dallas County2018Severe Storm2024115,343
Floyd County2018Severe Storm202415,008
Ida County2017Severe Storm20206,810
Kossuth County2017Severe Storm202414,408
Louisa County2018Flood202010,630
Madison County2017Flood202017,161
Mahaska County2018Severe Storm202022,034
Marshall County2018Flood202440,392
Mills County2018Severe Storm202414,717
Mitchell County2018Severe Storm202410,632
Monona County2017Severe Storm20258,429
Montgomery County2018Severe Storm202410,063
Ringgold County2018Flood20244,608
Scott County2018Flood2024175,601
Shelby County2017Severe Storm202411,821
Wapello County2018Flood202035,681
Webster County2017Severe Storm202236,909
Cass County1916Flood202213,024
Chickasaw County1917Severe Storm202011,719
Emmet County1916Flood20249,162
Fremont County1917Flood20206,494
Greene County1916Severe Storm20228,662
Jasper County1917Severe Storm202638,107
Keokuk County1917Flood20209,855
Marion County1917Flood202034,048
Sac County1916Severe Storm20229,533
Benton County1816Flood202025,799
Calhoun County1816Severe Storm20249,711
Cedar County1816Severe Storm202418,231
Delaware County1816Flood202017,609
Dickinson County1815Flood202418,158
Hardin County1816Severe Storm202016,464
Warren County1815Severe Storm202656,343
Woodbury County1815Flood2025107,257
Adair County1714Severe Storm20247,431
Adams County1715Severe Storm20243,606
Boone County1715Severe Storm202026,729
Bremer County1715Flood202025,328
Davis County1715Severe Storm20229,193
Guthrie County1714Severe Storm202210,774
Appanoose County1614Severe Storm202212,106
Carroll County1613Flood202020,407
Clarke County1614Flood20249,524
Henry County1614Severe Storm202019,361
Lyon County1613Severe Storm202412,378
Monroe County1614Flood20207,373
Page County1613Flood202015,038
Plymouth County1612Flood202425,825
Van Buren County1614Severe Storm20227,217
Winnebago County1613Severe Storm202410,383
Worth County1614Severe Storm20247,307
Cerro Gordo County1513Flood202042,493
Grundy County1513Severe Storm202012,405
Hancock County1512Severe Storm202410,616
Lucas County1513Flood20208,758
O'Brien County1512Severe Storm202414,260
Osceola County1512Flood20246,036
Poweshiek County1513Severe Storm202418,454
Sioux County1512Severe Storm202436,554
Washington County1513Severe Storm202022,631
Wayne County1513Severe Storm20206,622
Decatur County1412Flood20207,656
Taylor County1411Severe Storm20205,825
Jefferson County1210Flood202015,781