Iowa 2012 Presidential Election Results by County
In 2012, the Republican candidate won 61 of Iowa's 99 counties.
| County | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast |
|---|---|---|---|---|---|---|
| Adair | Mitt Romney | Republican | 2,114 | 52.9% | 8.1 pts | 3,996 |
| Adams | Mitt Romney | Republican | 1,108 | 50.7% | 3.7 pts | 2,185 |
| Allamakee | Barack Obama | Democratic | 3,553 | 51.2% | 4.2 pts | 6,934 |
| Appanoose | Mitt Romney | Republican | 3,161 | 50.6% | 3.4 pts | 6,245 |
| Audubon | Mitt Romney | Republican | 1,802 | 52.1% | 5.5 pts | 3,457 |
| Benton | Mitt Romney | Republican | 6,940 | 49.5% | 0.6 pts | 14,023 |
| Black Hawk | Barack Obama | Democratic | 39,821 | 59.3% | 20.2 pts | 67,141 |
| Boone | Barack Obama | Democratic | 7,512 | 52.2% | 6.6 pts | 14,388 |
| Bremer | Barack Obama | Democratic | 6,763 | 50.7% | 2.7 pts | 13,346 |
| Buchanan | Barack Obama | Democratic | 5,911 | 56.1% | 13.9 pts | 10,535 |
| Buena Vista | Mitt Romney | Republican | 4,554 | 54.3% | 10.2 pts | 8,383 |
| Butler | Mitt Romney | Republican | 4,106 | 54.4% | 10.3 pts | 7,545 |
| Calhoun | Mitt Romney | Republican | 2,891 | 55.3% | 12.5 pts | 5,230 |
| Carroll | Mitt Romney | Republican | 5,601 | 52.5% | 6.1 pts | 10,674 |
| Cass | Mitt Romney | Republican | 4,217 | 58.5% | 18.9 pts | 7,205 |
| Cedar | Barack Obama | Democratic | 4,972 | 51.5% | 4.6 pts | 9,649 |
| Cerro Gordo | Barack Obama | Democratic | 13,316 | 55.9% | 13.4 pts | 23,824 |
| Cherokee | Mitt Romney | Republican | 3,662 | 57.1% | 16.0 pts | 6,415 |
| Chickasaw | Barack Obama | Democratic | 3,554 | 54.8% | 11.1 pts | 6,484 |
| Clarke | Barack Obama | Democratic | 2,189 | 49.4% | 1.5 pts | 4,430 |
| Clay | Mitt Romney | Republican | 4,951 | 58.2% | 18.4 pts | 8,502 |
| Clayton | Barack Obama | Democratic | 4,806 | 52.6% | 7.0 pts | 9,138 |
| Clinton | Barack Obama | Democratic | 15,141 | 60.6% | 22.8 pts | 25,000 |
| Crawford | Mitt Romney | Republican | 3,595 | 53.2% | 7.8 pts | 6,752 |
| Dallas | Mitt Romney | Republican | 20,988 | 55.1% | 11.6 pts | 38,116 |
| Davis | Mitt Romney | Republican | 2,138 | 56.7% | 16.4 pts | 3,773 |
| Decatur | Mitt Romney | Republican | 1,947 | 50.8% | 4.1 pts | 3,833 |
| Delaware | Mitt Romney | Republican | 4,636 | 49.4% | 0.2 pts | 9,378 |
| Des Moines | Barack Obama | Democratic | 11,888 | 58.3% | 18.4 pts | 20,385 |
| Dickinson | Mitt Romney | Republican | 5,912 | 58.2% | 17.9 pts | 10,159 |
| Dubuque | Barack Obama | Democratic | 28,768 | 56.5% | 14.7 pts | 50,894 |
| Emmet | Mitt Romney | Republican | 2,507 | 53.5% | 8.7 pts | 4,687 |
| Fayette | Barack Obama | Democratic | 5,732 | 55.3% | 12.0 pts | 10,366 |
| Floyd | Barack Obama | Democratic | 4,680 | 56.7% | 14.6 pts | 8,257 |
| Franklin | Mitt Romney | Republican | 2,823 | 54.4% | 10.7 pts | 5,186 |
| Fremont | Mitt Romney | Republican | 1,972 | 53.8% | 9.1 pts | 3,668 |
| Greene | Mitt Romney | Republican | 2,380 | 49.1% | 0.1 pts | 4,846 |
| Grundy | Mitt Romney | Republican | 4,215 | 60.5% | 22.7 pts | 6,962 |
| Guthrie | Mitt Romney | Republican | 3,171 | 53.9% | 10.2 pts | 5,888 |
| Hamilton | Mitt Romney | Republican | 3,991 | 50.3% | 2.6 pts | 7,927 |
| Hancock | Mitt Romney | Republican | 3,317 | 56.0% | 13.4 pts | 5,925 |
| Hardin | Mitt Romney | Republican | 4,670 | 52.5% | 6.7 pts | 8,898 |
| Harrison | Mitt Romney | Republican | 4,065 | 55.5% | 12.7 pts | 7,322 |
| Henry | Mitt Romney | Republican | 5,035 | 51.9% | 5.9 pts | 9,697 |
| Howard | Barack Obama | Democratic | 2,768 | 59.6% | 20.9 pts | 4,645 |
| Humboldt | Mitt Romney | Republican | 3,099 | 60.1% | 21.8 pts | 5,158 |
| Ida | Mitt Romney | Republican | 2,286 | 62.4% | 26.3 pts | 3,663 |
| Iowa | Mitt Romney | Republican | 4,569 | 51.5% | 4.8 pts | 8,866 |
| Jackson | Barack Obama | Democratic | 5,907 | 57.7% | 16.9 pts | 10,242 |
| Jasper | Barack Obama | Democratic | 10,257 | 52.6% | 7.1 pts | 19,515 |
| Jefferson | Barack Obama | Democratic | 4,798 | 56.2% | 16.0 pts | 8,530 |
| Johnson | Barack Obama | Democratic | 50,666 | 66.7% | 35.5 pts | 75,977 |
| Jones | Barack Obama | Democratic | 5,534 | 53.0% | 7.8 pts | 10,449 |
| Keokuk | Mitt Romney | Republican | 2,843 | 54.0% | 10.3 pts | 5,266 |
| Kossuth | Mitt Romney | Republican | 4,937 | 55.3% | 12.2 pts | 8,923 |
| Lee | Barack Obama | Democratic | 10,714 | 56.7% | 15.5 pts | 18,911 |
| Linn | Barack Obama | Democratic | 68,581 | 57.9% | 17.7 pts | 118,453 |
| Louisa | Barack Obama | Democratic | 2,452 | 49.4% | 0.6 pts | 4,968 |
| Lucas | Mitt Romney | Republican | 2,254 | 52.1% | 6.2 pts | 4,323 |
| Lyon | Mitt Romney | Republican | 4,978 | 76.5% | 54.6 pts | 6,509 |
| Madison | Mitt Romney | Republican | 4,638 | 54.8% | 11.9 pts | 8,458 |
| Mahaska | Mitt Romney | Republican | 6,448 | 59.2% | 20.5 pts | 10,883 |
| Marion | Mitt Romney | Republican | 9,828 | 55.6% | 13.1 pts | 17,687 |
| Marshall | Barack Obama | Democratic | 10,257 | 53.8% | 9.4 pts | 19,064 |
| Mills | Mitt Romney | Republican | 4,216 | 58.5% | 19.0 pts | 7,212 |
| Mitchell | Barack Obama | Democratic | 2,831 | 50.7% | 3.4 pts | 5,586 |
| Monona | Mitt Romney | Republican | 2,557 | 53.9% | 9.6 pts | 4,742 |
| Monroe | Mitt Romney | Republican | 2,026 | 52.9% | 7.7 pts | 3,830 |
| Montgomery | Mitt Romney | Republican | 3,001 | 59.7% | 21.5 pts | 5,025 |
| Muscatine | Barack Obama | Democratic | 11,323 | 57.0% | 15.9 pts | 19,865 |
| O'Brien | Mitt Romney | Republican | 5,266 | 71.7% | 44.9 pts | 7,341 |
| Osceola | Mitt Romney | Republican | 2,230 | 69.8% | 41.3 pts | 3,194 |
| Page | Mitt Romney | Republican | 4,348 | 61.4% | 24.5 pts | 7,079 |
| Palo Alto | Mitt Romney | Republican | 2,660 | 54.4% | 10.7 pts | 4,887 |
| Plymouth | Mitt Romney | Republican | 8,597 | 66.4% | 34.2 pts | 12,950 |
| Pocahontas | Mitt Romney | Republican | 2,396 | 59.4% | 21.7 pts | 4,032 |
| Polk | Barack Obama | Democratic | 128,465 | 56.1% | 14.1 pts | 228,882 |
| Pottawattamie | Mitt Romney | Republican | 21,860 | 51.7% | 5.2 pts | 42,301 |
| Poweshiek | Barack Obama | Democratic | 5,357 | 53.7% | 9.4 pts | 9,975 |
| Ringgold | Mitt Romney | Republican | 1,368 | 52.6% | 7.0 pts | 2,599 |
| Sac | Mitt Romney | Republican | 3,094 | 58.5% | 18.4 pts | 5,291 |
| Scott | Barack Obama | Democratic | 50,652 | 56.1% | 13.7 pts | 90,263 |
| Shelby | Mitt Romney | Republican | 3,911 | 60.3% | 22.2 pts | 6,483 |
| Sioux | Mitt Romney | Republican | 14,407 | 83.2% | 67.6 pts | 17,308 |
| Story | Barack Obama | Democratic | 26,192 | 55.6% | 13.8 pts | 47,150 |
| Tama | Barack Obama | Democratic | 4,768 | 52.9% | 7.4 pts | 9,017 |
| Taylor | Mitt Romney | Republican | 1,683 | 56.2% | 14.1 pts | 2,995 |
| Union | Barack Obama | Democratic | 3,043 | 51.1% | 3.9 pts | 5,957 |
| Van Buren | Mitt Romney | Republican | 2,064 | 57.8% | 18.5 pts | 3,569 |
| Wapello | Barack Obama | Democratic | 8,663 | 54.9% | 11.9 pts | 15,770 |
| Warren | Mitt Romney | Republican | 13,052 | 50.1% | 1.9 pts | 26,072 |
| Washington | Mitt Romney | Republican | 5,562 | 50.5% | 4.1 pts | 11,004 |
| Wayne | Mitt Romney | Republican | 1,583 | 54.6% | 11.4 pts | 2,900 |
| Webster | Barack Obama | Democratic | 9,537 | 52.1% | 5.8 pts | 18,292 |
| Winnebago | Mitt Romney | Republican | 2,906 | 49.1% | 0.1 pts | 5,918 |
| Winneshiek | Barack Obama | Democratic | 6,256 | 56.4% | 14.7 pts | 11,084 |
| Woodbury | Barack Obama | Democratic | 22,302 | 49.5% | 1.0 pts | 45,019 |
| Worth | Barack Obama | Democratic | 2,350 | 56.3% | 14.5 pts | 4,172 |
| Wright | Mitt Romney | Republican | 3,349 | 53.3% | 8.2 pts | 6,278 |
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Frequently Asked Questions
Which party won the most counties in Iowa in 2012?
The Republican candidate won 61 of Iowa's 99 counties in 2012, with 38 counties going to the other major party.
Which Iowa county had the closest presidential result in 2012?
Greene had the closest margin in Iowa in 2012, with Mitt Romney (Republican) winning by 0.1 points out of 4,846 total votes cast.
Which Iowa county had the widest presidential margin in 2012?
Sioux had the widest margin in Iowa in 2012, with Mitt Romney (Republican) winning by 67.6 points.
How many counties are included in Iowa's 2012 presidential results?
This page covers 99 counties in Iowa for the 2012 presidential election, based on MEDSL/EveryElectionResult.com county-level returns.