Iowa 2000 vs 2012: county swing
36 of 99 counties moved toward the Republican ticket; 13 changed hands.
| County | 2000 | 2012 | Swing | Votes 2000 | Votes 2012 |
|---|---|---|---|---|---|
| Dickinson County | R+6.9 | R+17.9 | R+11.0 | 8,121 | 10,159 |
| Ida County | R+16.0 | R+26.3 | R+10.3 | 3,491 | 3,663 |
| Palo Alto County | R+0.3 | R+10.6 | R+10.3 | 4,823 | 4,887 |
| Davis County | R+7.0 | R+16.4 | R+9.4 | 3,758 | 3,773 |
| Pocahontas County | R+12.2 | R+21.6 | R+9.4 | 4,141 | 4,032 |
| O'Brien County | R+35.6 | R+44.9 | R+9.3 | 7,044 | 7,341 |
| Clay County | R+9.2 | R+18.4 | R+9.2 | 7,578 | 8,502 |
| Plymouth County | R+26.6 | R+34.2 | R+7.6 | 10,118 | 12,950 |
| Cherokee County | R+9.3 | R+16.0 | R+6.7 | 6,592 | 6,415 |
| Lyon County | R+48.7 | R+54.6 | R+5.9 | 5,342 | 6,509 |
| Emmet County | R+3.5 | R+8.7 | R+5.2 | 4,630 | 4,687 |
| Kossuth County | R+7.3 | R+12.2 | R+4.9 | 8,878 | 8,923 |
| Sac County | R+13.5 | R+18.4 | R+4.9 | 5,033 | 5,291 |
| Monona County | R+4.8 | R+9.6 | R+4.8 | 4,560 | 4,742 |
| Benton County flipped | D+3.8 | R+0.6 | R+4.4 | 11,766 | 14,023 |
| Lee County | D+19.8 | D+15.5 | R+4.3 | 16,572 | 18,911 |
| Guthrie County | R+6.3 | R+10.3 | R+4.0 | 5,469 | 5,888 |
| Humboldt County | R+18.1 | R+21.9 | R+3.8 | 4,940 | 5,158 |
| Madison County | R+8.1 | R+11.9 | R+3.8 | 6,969 | 8,458 |
| Osceola County | R+37.6 | R+41.2 | R+3.6 | 3,063 | 3,194 |
| Monroe County | R+4.3 | R+7.7 | R+3.4 | 3,647 | 3,830 |
| Dallas County | R+9.0 | R+11.6 | R+2.6 | 19,330 | 38,116 |
| Keokuk County | R+7.9 | R+10.3 | R+2.4 | 4,947 | 5,266 |
| Ringgold County | R+4.6 | R+7.0 | R+2.4 | 2,692 | 2,599 |
| Van Buren County | R+16.2 | R+18.5 | R+2.3 | 3,561 | 3,569 |
| Audubon County | R+3.4 | R+5.5 | R+2.1 | 3,784 | 3,457 |
| Des Moines County | D+20.5 | D+18.4 | R+2.1 | 19,365 | 20,385 |
| Carroll County | R+4.4 | R+6.2 | R+1.8 | 9,568 | 10,674 |
| Wapello County | D+13.5 | D+11.8 | R+1.7 | 15,139 | 15,770 |
| Mitchell County | D+5.0 | D+3.4 | R+1.6 | 5,162 | 5,586 |
| Warren County | R+0.6 | R+2.0 | R+1.4 | 19,653 | 26,072 |
| Louisa County | D+1.9 | D+0.7 | R+1.2 | 4,637 | 4,968 |
| Clarke County | D+2.3 | D+1.5 | R+0.8 | 4,176 | 4,430 |
| Greene County flipped | D+0.4 | R+0.1 | R+0.5 | 4,719 | 4,846 |
| Hancock County | R+13.0 | R+13.5 | R+0.5 | 5,438 | 5,925 |
| Winnebago County flipped | D+0.5 | Even | R+0.5 | 5,527 | 5,918 |
| Dubuque County | D+14.6 | D+14.7 | D+0.1 | 40,323 | 50,894 |
| Franklin County | R+10.8 | R+10.7 | D+0.1 | 4,938 | 5,186 |
| Calhoun County | R+12.8 | R+12.5 | D+0.3 | 5,041 | 5,230 |
| Henry County | R+6.5 | R+5.9 | D+0.6 | 8,671 | 9,697 |
| Wayne County | R+12.1 | R+11.5 | D+0.6 | 3,021 | 2,900 |
| Cerro Gordo County | D+12.6 | D+13.4 | D+0.8 | 22,162 | 23,824 |
| Worth County | D+13.7 | D+14.5 | D+0.8 | 4,004 | 4,172 |
| Sioux County | R+68.7 | R+67.6 | D+1.1 | 14,692 | 17,308 |
| Wright County | R+9.3 | R+8.1 | D+1.2 | 6,336 | 6,278 |
| Boone County | D+5.3 | D+6.6 | D+1.3 | 12,249 | 14,388 |
| Lucas County | R+7.7 | R+6.1 | D+1.6 | 4,303 | 4,323 |
| Crawford County | R+9.8 | R+7.8 | D+2.0 | 6,555 | 6,752 |
| Decatur County | R+6.2 | R+4.1 | D+2.1 | 3,709 | 3,833 |
| Hardin County | R+8.9 | R+6.7 | D+2.2 | 8,435 | 8,898 |
| Shelby County | R+24.5 | R+22.2 | D+2.3 | 6,009 | 6,483 |
| Jones County | D+5.4 | D+7.8 | D+2.4 | 9,143 | 10,449 |
| Taylor County | R+16.9 | R+14.1 | D+2.8 | 3,096 | 2,995 |
| Buena Vista County | R+13.3 | R+10.2 | D+3.1 | 7,977 | 8,383 |
| Chickasaw County | D+7.6 | D+11.1 | D+3.5 | 6,584 | 6,484 |
| Buchanan County | D+10.1 | D+13.9 | D+3.8 | 9,410 | 10,535 |
| Jackson County | D+13.0 | D+16.9 | D+3.9 | 9,032 | 10,242 |
| Webster County | D+1.8 | D+5.8 | D+4.0 | 17,048 | 18,292 |
| Iowa County | R+8.9 | R+4.8 | D+4.1 | 7,413 | 8,866 |
| Woodbury County flipped | R+3.1 | D+1.0 | D+4.1 | 37,896 | 45,019 |
| Appanoose County | R+7.6 | R+3.3 | D+4.3 | 5,704 | 6,245 |
| Adair County | R+12.7 | R+8.1 | D+4.6 | 4,123 | 3,996 |
| Cedar County | Even | D+4.6 | D+4.6 | 8,344 | 9,649 |
| Clayton County | D+2.3 | D+7.0 | D+4.7 | 8,571 | 9,138 |
| Hamilton County | R+7.4 | R+2.6 | D+4.8 | 7,574 | 7,927 |
| Marion County | R+18.2 | R+13.2 | D+5.0 | 14,408 | 17,687 |
| Grundy County | R+28.0 | R+22.7 | D+5.3 | 6,111 | 6,962 |
| Delaware County | R+5.6 | R+0.2 | D+5.4 | 8,349 | 9,378 |
| Floyd County | D+8.8 | D+14.7 | D+5.9 | 7,238 | 8,257 |
| Washington County | R+9.9 | R+4.0 | D+5.9 | 9,094 | 11,004 |
| Butler County | R+16.4 | R+10.3 | D+6.1 | 6,724 | 7,545 |
| Cass County | R+25.0 | R+18.8 | D+6.2 | 6,880 | 7,205 |
| Harrison County | R+19.1 | R+12.7 | D+6.4 | 6,543 | 7,322 |
| Pottawattamie County | R+11.8 | R+5.3 | D+6.5 | 34,467 | 42,301 |
| Mahaska County | R+27.3 | R+20.5 | D+6.8 | 9,543 | 10,883 |
| Bremer County flipped | R+4.5 | D+2.7 | D+7.2 | 11,175 | 13,346 |
| Jasper County flipped | R+0.1 | D+7.1 | D+7.2 | 17,835 | 19,515 |
| Tama County | D+0.1 | D+7.5 | D+7.4 | 8,315 | 9,017 |
| Fremont County | R+16.9 | R+9.2 | D+7.7 | 3,616 | 3,668 |
| Montgomery County | R+29.2 | R+21.5 | D+7.7 | 5,394 | 5,025 |
| Page County | R+32.5 | R+24.5 | D+8.0 | 7,059 | 7,079 |
| Black Hawk County | D+12.1 | D+20.2 | D+8.1 | 55,085 | 67,141 |
| Linn County | D+9.2 | D+17.7 | D+8.5 | 92,064 | 118,453 |
| Polk County | D+5.6 | D+14.1 | D+8.5 | 174,167 | 228,882 |
| Mills County | R+27.8 | R+19.0 | D+8.8 | 5,915 | 7,212 |
| Adams County | R+12.7 | R+3.7 | D+9.0 | 2,145 | 2,185 |
| Clinton County | D+13.7 | D+22.9 | D+9.2 | 22,180 | 25,000 |
| Scott County | D+4.3 | D+13.7 | D+9.4 | 70,568 | 90,263 |
| Howard County | D+11.2 | D+21.0 | D+9.8 | 4,491 | 4,645 |
| Allamakee County flipped | R+6.1 | D+4.1 | D+10.2 | 6,462 | 6,934 |
| Johnson County | D+25.2 | D+35.5 | D+10.3 | 52,769 | 75,977 |
| Story County | D+3.5 | D+13.9 | D+10.4 | 35,364 | 47,150 |
| Poweshiek County flipped | R+2.0 | D+9.3 | D+11.3 | 8,980 | 9,975 |
| Union County flipped | R+8.0 | D+3.9 | D+11.9 | 5,740 | 5,957 |
| Marshall County flipped | R+2.6 | D+9.4 | D+12.0 | 17,624 | 19,064 |
| Muscatine County | D+3.6 | D+15.9 | D+12.3 | 16,076 | 19,865 |
| Fayette County flipped | R+1.1 | D+12.0 | D+13.1 | 9,621 | 10,366 |
| Winneshiek County flipped | R+3.2 | D+14.7 | D+17.9 | 9,417 | 11,084 |
| Jefferson County flipped | R+5.1 | D+15.9 | D+21.0 | 7,548 | 8,530 |
Official results As published by The American Presidency Project (UC Santa Barbara) and the state documents it links. How we use this data