Iowa 2008 vs 2024: county swing
98 of 99 counties moved toward the Republican ticket; 48 changed hands.
| County | 2008 | 2024 | Swing | Votes 2008 | Votes 2024 |
|---|---|---|---|---|---|
| Chickasaw County flipped | D+20.8 | R+37.2 | R+58.0 | 6,583 | 6,230 |
| Howard County flipped | D+25.8 | R+31.8 | R+57.6 | 4,728 | 4,837 |
| Jackson County flipped | D+24.4 | R+32.5 | R+56.9 | 9,955 | 10,782 |
| Clayton County flipped | D+17.2 | R+34.5 | R+51.7 | 8,989 | 9,381 |
| Worth County flipped | D+22.4 | R+28.2 | R+50.6 | 4,257 | 4,278 |
| Wayne County | R+7.0 | R+57.2 | R+50.2 | 2,980 | 3,119 |
| Crawford County flipped | D+5.2 | R+43.5 | R+48.7 | 7,191 | 6,525 |
| Allamakee County flipped | D+14.3 | R+34.3 | R+48.6 | 7,059 | 7,303 |
| Emmet County flipped | D+3.9 | R+44.0 | R+47.9 | 5,015 | 4,786 |
| Keokuk County | R+3.6 | R+51.5 | R+47.9 | 5,361 | 5,142 |
| Palo Alto County flipped | D+2.8 | R+45.0 | R+47.8 | 4,806 | 4,976 |
| Floyd County flipped | D+21.9 | R+25.7 | R+47.6 | 8,091 | 7,625 |
| Adams County flipped | D+3.3 | R+44.2 | R+47.5 | 2,206 | 2,131 |
| Kossuth County flipped | D+3.2 | R+44.1 | R+47.3 | 9,097 | 8,376 |
| Taylor County | R+8.6 | R+55.8 | R+47.2 | 3,026 | 3,078 |
| Fayette County flipped | D+16.6 | R+30.4 | R+47.0 | 10,259 | 9,817 |
| Buchanan County flipped | D+18.5 | R+28.2 | R+46.7 | 10,338 | 10,714 |
| Decatur County | R+0.8 | R+47.0 | R+46.2 | 4,102 | 3,727 |
| Delaware County flipped | D+6.0 | R+39.6 | R+45.6 | 8,901 | 10,112 |
| Pocahontas County | R+8.4 | R+54.0 | R+45.6 | 4,011 | 3,573 |
| Carroll County flipped | D+3.6 | R+41.9 | R+45.5 | 10,387 | 11,120 |
| Monroe County | R+5.2 | R+50.7 | R+45.5 | 3,873 | 4,146 |
| Louisa County flipped | D+4.3 | R+41.0 | R+45.3 | 4,920 | 5,136 |
| Davis County | R+9.2 | R+54.4 | R+45.2 | 3,815 | 3,950 |
| Ringgold County | R+6.1 | R+51.3 | R+45.2 | 2,689 | 2,683 |
| Wapello County flipped | D+13.6 | R+31.5 | R+45.1 | 15,931 | 14,571 |
| Appanoose County | R+1.9 | R+46.6 | R+44.7 | 6,176 | 6,466 |
| Clarke County flipped | D+2.2 | R+42.0 | R+44.2 | 4,443 | 4,459 |
| Hancock County | R+3.6 | R+47.4 | R+43.8 | 5,930 | 5,933 |
| Lee County flipped | D+16.0 | R+27.8 | R+43.8 | 17,224 | 16,154 |
| Mitchell County flipped | D+12.3 | R+31.1 | R+43.4 | 5,766 | 5,757 |
| Van Buren County | R+12.2 | R+55.4 | R+43.2 | 3,608 | 3,622 |
| Franklin County flipped | D+1.4 | R+41.7 | R+43.1 | 5,148 | 4,885 |
| Monona County | R+2.4 | R+45.4 | R+43.0 | 4,796 | 4,616 |
| Sac County | R+8.9 | R+51.6 | R+42.7 | 5,053 | 5,448 |
| Clinton County flipped | D+23.1 | R+18.8 | R+41.9 | 24,719 | 23,813 |
| Adair County | R+3.3 | R+45.1 | R+41.8 | 4,053 | 4,064 |
| Audubon County flipped | D+3.0 | R+38.5 | R+41.5 | 3,435 | 3,239 |
| Lucas County | R+6.7 | R+48.1 | R+41.4 | 4,471 | 4,639 |
| Fremont County | R+3.6 | R+44.6 | R+41.0 | 3,894 | 3,785 |
| Butler County | R+4.7 | R+45.4 | R+40.7 | 7,166 | 8,027 |
| Union County flipped | D+3.7 | R+36.1 | R+39.8 | 5,909 | 5,996 |
| Webster County flipped | D+8.5 | R+31.1 | R+39.6 | 18,554 | 16,706 |
| Hardin County flipped | D+0.9 | R+38.4 | R+39.3 | 8,859 | 8,434 |
| Winnebago County flipped | D+8.6 | R+30.7 | R+39.3 | 6,082 | 5,627 |
| Tama County flipped | D+12.2 | R+26.9 | R+39.1 | 8,850 | 8,594 |
| Calhoun County | R+7.7 | R+46.7 | R+39.0 | 5,195 | 5,093 |
| Cherokee County | R+7.6 | R+45.7 | R+38.1 | 6,365 | 6,089 |
| Des Moines County flipped | D+23.1 | R+15.0 | R+38.1 | 20,570 | 18,998 |
| Clay County | R+5.2 | R+43.2 | R+38.0 | 8,398 | 8,514 |
| Benton County flipped | D+4.5 | R+33.2 | R+37.7 | 13,712 | 14,470 |
| Harrison County | R+4.7 | R+41.8 | R+37.1 | 7,578 | 7,938 |
| Ida County | R+16.4 | R+53.4 | R+37.0 | 3,547 | 3,642 |
| Jones County flipped | D+10.4 | R+26.3 | R+36.7 | 10,004 | 10,949 |
| Humboldt County | R+14.3 | R+50.0 | R+35.7 | 5,122 | 5,067 |
| Jasper County flipped | D+7.5 | R+27.6 | R+35.1 | 19,421 | 20,149 |
| Mahaska County | R+16.6 | R+51.6 | R+35.0 | 10,932 | 10,910 |
| Wright County | R+1.5 | R+36.5 | R+35.0 | 6,395 | 5,706 |
| Dickinson County | R+5.4 | R+40.0 | R+34.6 | 9,906 | 11,192 |
| Hamilton County flipped | D+1.3 | R+33.3 | R+34.6 | 8,078 | 7,573 |
| Greene County flipped | D+0.5 | R+33.0 | R+33.5 | 4,804 | 4,874 |
| Shelby County | R+9.7 | R+43.0 | R+33.3 | 6,453 | 6,486 |
| Osceola County | R+31.6 | R+64.3 | R+32.7 | 3,127 | 3,219 |
| Cerro Gordo County flipped | D+20.9 | R+11.6 | R+32.5 | 24,140 | 22,942 |
| Winneshiek County flipped | D+22.6 | R+9.3 | R+31.9 | 11,280 | 11,927 |
| Bremer County flipped | D+9.3 | R+22.1 | R+31.4 | 12,871 | 14,556 |
| Buena Vista County | R+1.8 | R+33.2 | R+31.4 | 8,418 | 7,516 |
| Cedar County flipped | D+9.6 | R+21.7 | R+31.3 | 9,665 | 10,624 |
| Henry County | R+5.0 | R+36.0 | R+31.0 | 9,377 | 9,574 |
| Muscatine County flipped | D+15.6 | R+14.9 | R+30.5 | 19,119 | 19,695 |
| Guthrie County | R+7.7 | R+38.0 | R+30.3 | 5,847 | 6,514 |
| Cass County | R+10.8 | R+40.7 | R+29.9 | 7,350 | 7,195 |
| Dubuque County flipped | D+20.8 | R+8.6 | R+29.4 | 47,953 | 52,566 |
| Boone County flipped | D+7.6 | R+21.5 | R+29.1 | 13,929 | 15,346 |
| Plymouth County | R+25.1 | R+54.2 | R+29.1 | 12,512 | 13,931 |
| Madison County | R+10.0 | R+38.6 | R+28.6 | 8,480 | 9,995 |
| Poweshiek County flipped | D+11.7 | R+16.9 | R+28.6 | 10,031 | 9,971 |
| Montgomery County | R+10.6 | R+39.1 | R+28.5 | 5,287 | 5,061 |
| Iowa County flipped | D+0.2 | R+27.7 | R+27.9 | 8,546 | 9,617 |
| Jefferson County flipped | D+20.2 | R+6.8 | R+27.0 | 8,631 | 8,317 |
| Marion County | R+10.8 | R+37.8 | R+27.0 | 17,030 | 19,490 |
| O'Brien County | R+34.8 | R+61.0 | R+26.2 | 7,333 | 7,501 |
| Grundy County | R+16.9 | R+41.8 | R+24.9 | 6,828 | 7,131 |
| Lyon County | R+45.0 | R+69.9 | R+24.9 | 6,217 | 6,984 |
| Marshall County flipped | D+9.3 | R+15.6 | R+24.9 | 18,657 | 17,217 |
| Washington County | R+0.7 | R+24.4 | R+23.7 | 10,626 | 11,551 |
| Page County | R+19.7 | R+42.4 | R+22.7 | 7,356 | 7,297 |
| Mills County | R+16.5 | R+39.1 | R+22.6 | 7,282 | 8,223 |
| Woodbury County | R+0.5 | R+23.1 | R+22.6 | 44,801 | 42,674 |
| Warren County flipped | D+0.6 | R+20.8 | R+21.4 | 24,880 | 32,662 |
| Black Hawk County | D+22.4 | D+1.2 | R+21.2 | 64,775 | 62,653 |
| Scott County flipped | D+14.5 | R+3.9 | R+18.4 | 86,371 | 89,743 |
| Pottawattamie County | R+1.9 | R+20.0 | R+18.1 | 42,320 | 44,411 |
| Linn County | D+21.5 | D+9.9 | R+11.6 | 113,355 | 122,369 |
| Sioux County | R+62.8 | R+71.1 | R+8.3 | 16,664 | 18,881 |
| Story County | D+16.2 | D+10.4 | R+5.8 | 46,575 | 49,200 |
| Polk County | D+14.6 | D+10.9 | R+3.7 | 214,386 | 255,563 |
| Johnson County | D+41.5 | D+38.1 | R+3.4 | 72,975 | 86,068 |
| Dallas County | R+5.5 | R+4.8 | D+0.7 | 32,640 | 62,633 |
Official results As published by The American Presidency Project (UC Santa Barbara) and the state documents it links. How we use this data