Iowa — 2012 presidential election
Recent presidential results
Akashicstate2012 presidential electionIowa · PresidentObamaD+5.8
How it voted
Share of the 2012 vote
| Barack Obama ✓Democratic | 52.0% | 822,544 |
|---|---|---|
| Mitt RomneyRepublican | 46.2% | 730,617 |
| OtherAll other candidates | 1.8% | 29,019 |
2012presidential margin
D+60R+60
99 counties, each filled by 2012 D-vs-R margin. Hover any county for its result.
Iowa cast 6 electoral votes this cycle.
County-level results (99 counties) — table
| County | Winner | Margin |
|---|---|---|
| Adair County, IA | Republican | R+8.1 |
| Adams County, IA | Republican | R+3.7 |
| Allamakee County, IA | Democratic | D+4.2 |
| Appanoose County, IA | Republican | R+3.4 |
| Audubon County, IA | Republican | R+5.5 |
| Benton County, IA | Republican | R+0.6 |
| Black Hawk County, IA | Democratic | D+20.2 |
| Boone County, IA | Democratic | D+6.6 |
| Bremer County, IA | Democratic | D+2.7 |
| Buchanan County, IA | Democratic | D+13.9 |
| Buena Vista County, IA | Republican | R+10.2 |
| Butler County, IA | Republican | R+10.3 |
| Calhoun County, IA | Republican | R+12.5 |
| Carroll County, IA | Republican | R+6.1 |
| Cass County, IA | Republican | R+18.9 |
| Cedar County, IA | Democratic | D+4.6 |
| Cerro Gordo County, IA | Democratic | D+13.4 |
| Cherokee County, IA | Republican | R+16.0 |
| Chickasaw County, IA | Democratic | D+11.1 |
| Clarke County, IA | Democratic | D+1.5 |
| Clay County, IA | Republican | R+18.4 |
| Clayton County, IA | Democratic | D+7.0 |
| Clinton County, IA | Democratic | D+22.8 |
| Crawford County, IA | Republican | R+7.8 |
| Dallas County, IA | Republican | R+11.6 |
| Davis County, IA | Republican | R+16.4 |
| Decatur County, IA | Republican | R+4.1 |
| Delaware County, IA | Republican | R+0.2 |
| Des Moines County, IA | Democratic | D+18.4 |
| Dickinson County, IA | Republican | R+17.9 |
| Dubuque County, IA | Democratic | D+14.7 |
| Emmet County, IA | Republican | R+8.7 |
| Fayette County, IA | Democratic | D+12.0 |
| Floyd County, IA | Democratic | D+14.6 |
| Franklin County, IA | Republican | R+10.7 |
| Fremont County, IA | Republican | R+9.1 |
| Greene County, IA | Republican | R+0.1 |
| Grundy County, IA | Republican | R+22.7 |
| Guthrie County, IA | Republican | R+10.2 |
| Hamilton County, IA | Republican | R+2.6 |
| Hancock County, IA | Republican | R+13.4 |
| Hardin County, IA | Republican | R+6.7 |
| Harrison County, IA | Republican | R+12.7 |
| Henry County, IA | Republican | R+5.9 |
| Howard County, IA | Democratic | D+20.9 |
| Humboldt County, IA | Republican | R+21.8 |
| Ida County, IA | Republican | R+26.3 |
| Iowa County, IA | Republican | R+4.8 |
| Jackson County, IA | Democratic | D+16.9 |
| Jasper County, IA | Democratic | D+7.1 |
| Jefferson County, IA | Democratic | D+16.0 |
| Johnson County, IA | Democratic | D+35.5 |
| Jones County, IA | Democratic | D+7.8 |
| Keokuk County, IA | Republican | R+10.3 |
| Kossuth County, IA | Republican | R+12.2 |
| Lee County, IA | Democratic | D+15.5 |
| Linn County, IA | Democratic | D+17.7 |
| Louisa County, IA | Democratic | D+0.6 |
| Lucas County, IA | Republican | R+6.2 |
| Lyon County, IA | Republican | R+54.6 |
| Madison County, IA | Republican | R+11.9 |
| Mahaska County, IA | Republican | R+20.5 |
| Marion County, IA | Republican | R+13.1 |
| Marshall County, IA | Democratic | D+9.4 |
| Mills County, IA | Republican | R+19.0 |
| Mitchell County, IA | Democratic | D+3.4 |
| Monona County, IA | Republican | R+9.6 |
| Monroe County, IA | Republican | R+7.7 |
| Montgomery County, IA | Republican | R+21.5 |
| Muscatine County, IA | Democratic | D+15.9 |
| O'Brien County, IA | Republican | R+44.9 |
| Osceola County, IA | Republican | R+41.3 |
| Page County, IA | Republican | R+24.5 |
| Palo Alto County, IA | Republican | R+10.7 |
| Plymouth County, IA | Republican | R+34.2 |
| Pocahontas County, IA | Republican | R+21.7 |
| Polk County, IA | Democratic | D+14.1 |
| Pottawattamie County, IA | Republican | R+5.2 |
| Poweshiek County, IA | Democratic | D+9.4 |
| Ringgold County, IA | Republican | R+7.0 |
| Sac County, IA | Republican | R+18.4 |
| Scott County, IA | Democratic | D+13.7 |
| Shelby County, IA | Republican | R+22.2 |
| Sioux County, IA | Republican | R+67.6 |
| Story County, IA | Democratic | D+13.8 |
| Tama County, IA | Democratic | D+7.4 |
| Taylor County, IA | Republican | R+14.1 |
| Union County, IA | Democratic | D+3.9 |
| Van Buren County, IA | Republican | R+18.5 |
| Wapello County, IA | Democratic | D+11.9 |
| Warren County, IA | Republican | R+1.9 |
| Washington County, IA | Republican | R+4.1 |
| Wayne County, IA | Republican | R+11.4 |
| Webster County, IA | Democratic | D+5.8 |
| Winnebago County, IA | Republican | R+0.1 |
| Winneshiek County, IA | Democratic | D+14.7 |
| Woodbury County, IA | Democratic | D+1.0 |
| Worth County, IA | Democratic | D+14.5 |
| Wright County, IA | Republican | R+8.2 |
Iowa results by county
99 counties. Third-party and independent votes are reported by the county source as one combined figure; every named candidate is listed in the complete result below.
| Led by | |||||
|---|---|---|---|---|---|
| Adair County | Mitt Romney+324 | 1,79044.8% | 2,11452.9% | 922.3% | 3,996 |
| Adams County | Mitt Romney+80 | 1,02847.0% | 1,10850.7% | 492.2% | 2,185 |
| Allamakee County | Barack Obama+289 | 3,55351.2% | 3,26447.1% | 1171.7% | 6,934 |
| Appanoose County | Mitt Romney+210 | 2,95147.3% | 3,16150.6% | 1332.1% | 6,245 |
| Audubon County | Mitt Romney+191 | 1,61146.6% | 1,80252.1% | 441.3% | 3,457 |
| Benton County | Mitt Romney+78 | 6,86248.9% | 6,94049.5% | 2211.6% | 14,023 |
| Black Hawk County | Barack Obama+13,586 | 39,82159.3% | 26,23539.1% | 1,0851.6% | 67,141 |
| Boone County | Barack Obama+956 | 7,51252.2% | 6,55645.6% | 3202.2% | 14,388 |
| Bremer County | Barack Obama+358 | 6,76350.7% | 6,40548.0% | 1781.3% | 13,346 |
| Buchanan County | Barack Obama+1,461 | 5,91156.1% | 4,45042.2% | 1741.7% | 10,535 |
| Buena Vista County | Mitt Romney+854 | 3,70044.1% | 4,55454.3% | 1291.5% | 8,383 |
| Butler County | Mitt Romney+777 | 3,32944.1% | 4,10654.4% | 1101.5% | 7,545 |
| Calhoun County | Mitt Romney+653 | 2,23842.8% | 2,89155.3% | 1011.9% | 5,230 |
| Carroll County | Mitt Romney+654 | 4,94746.3% | 5,60152.5% | 1261.2% | 10,674 |
| Cass County | Mitt Romney+1,359 | 2,85839.7% | 4,21758.5% | 1301.8% | 7,205 |
| Cedar County | Barack Obama+443 | 4,97251.5% | 4,52946.9% | 1481.5% | 9,649 |
| Cerro Gordo County | Barack Obama+3,188 | 13,31655.9% | 10,12842.5% | 3801.6% | 23,824 |
| Cherokee County | Mitt Romney+1,028 | 2,63441.1% | 3,66257.1% | 1191.9% | 6,415 |
| Chickasaw County | Barack Obama+718 | 3,55454.8% | 2,83643.7% | 941.4% | 6,484 |
| Clarke County | Barack Obama+65 | 2,18949.4% | 2,12447.9% | 1172.6% | 4,430 |
| Clay County | Mitt Romney+1,566 | 3,38539.8% | 4,95158.2% | 1662.0% | 8,502 |
| Clayton County | Barack Obama+642 | 4,80652.6% | 4,16445.6% | 1681.8% | 9,138 |
| Clinton County | Barack Obama+5,709 | 15,14160.6% | 9,43237.7% | 4271.7% | 25,000 |
| Crawford County | Mitt Romney+529 | 3,06645.4% | 3,59553.2% | 911.3% | 6,752 |
| Dallas County | Mitt Romney+4,412 | 16,57643.5% | 20,98855.1% | 5521.4% | 38,116 |
| Davis County | Mitt Romney+618 | 1,52040.3% | 2,13856.7% | 1153.0% | 3,773 |
| Decatur County | Mitt Romney+156 | 1,79146.7% | 1,94750.8% | 952.5% | 3,833 |
| Delaware County | Mitt Romney+20 | 4,61649.2% | 4,63649.4% | 1261.3% | 9,378 |
| Des Moines County | Barack Obama+3,752 | 11,88858.3% | 8,13639.9% | 3611.8% | 20,385 |
| Dickinson County | Mitt Romney+1,817 | 4,09540.3% | 5,91258.2% | 1521.5% | 10,159 |
| Dubuque County | Barack Obama+7,488 | 28,76856.5% | 21,28041.8% | 8461.7% | 50,894 |
| Emmet County | Mitt Romney+408 | 2,09944.8% | 2,50753.5% | 811.7% | 4,687 |
| Fayette County | Barack Obama+1,240 | 5,73255.3% | 4,49243.3% | 1421.4% | 10,366 |
| Floyd County | Barack Obama+1,208 | 4,68056.7% | 3,47242.0% | 1051.3% | 8,257 |
| Franklin County | Mitt Romney+557 | 2,26643.7% | 2,82354.4% | 971.9% | 5,186 |
| Fremont County | Mitt Romney+335 | 1,63744.6% | 1,97253.8% | 591.6% | 3,668 |
| Greene County | Mitt Romney+5 | 2,37549.0% | 2,38049.1% | 911.9% | 4,846 |
| Grundy County | Mitt Romney+1,580 | 2,63537.8% | 4,21560.5% | 1121.6% | 6,962 |
| Guthrie County | Mitt Romney+602 | 2,56943.6% | 3,17153.9% | 1482.5% | 5,888 |
| Hamilton County | Mitt Romney+209 | 3,78247.7% | 3,99150.3% | 1541.9% | 7,927 |
| Hancock County | Mitt Romney+796 | 2,52142.5% | 3,31756.0% | 871.5% | 5,925 |
| Hardin County | Mitt Romney+595 | 4,07545.8% | 4,67052.5% | 1531.7% | 8,898 |
| Harrison County | Mitt Romney+929 | 3,13642.8% | 4,06555.5% | 1211.7% | 7,322 |
| Henry County | Mitt Romney+575 | 4,46046.0% | 5,03551.9% | 2022.1% | 9,697 |
| Howard County | Barack Obama+973 | 2,76859.6% | 1,79538.6% | 821.8% | 4,645 |
| Humboldt County | Mitt Romney+1,127 | 1,97238.2% | 3,09960.1% | 871.7% | 5,158 |
| Ida County | Mitt Romney+965 | 1,32136.1% | 2,28662.4% | 561.5% | 3,663 |
| Iowa County | Mitt Romney+425 | 4,14446.7% | 4,56951.5% | 1531.7% | 8,866 |
| Jackson County | Barack Obama+1,730 | 5,90757.7% | 4,17740.8% | 1581.5% | 10,242 |
| Jasper County | Barack Obama+1,380 | 10,25752.6% | 8,87745.5% | 3812.0% | 19,515 |
| Jefferson County | Barack Obama+1,362 | 4,79856.2% | 3,43640.3% | 2963.5% | 8,530 |
| Johnson County | Barack Obama+26,968 | 50,66666.7% | 23,69831.2% | 1,6132.1% | 75,977 |
| Jones County | Barack Obama+813 | 5,53453.0% | 4,72145.2% | 1941.9% | 10,449 |
| Keokuk County | Mitt Romney+540 | 2,30343.7% | 2,84354.0% | 1202.3% | 5,266 |
| Kossuth County | Mitt Romney+1,087 | 3,85043.1% | 4,93755.3% | 1361.5% | 8,923 |
| Lee County | Barack Obama+2,929 | 10,71456.7% | 7,78541.2% | 4122.2% | 18,911 |
| Linn County | Barack Obama+20,959 | 68,58157.9% | 47,62240.2% | 2,2501.9% | 118,453 |
| Louisa County | Barack Obama+32 | 2,45249.4% | 2,42048.7% | 961.9% | 4,968 |
| Lucas County | Mitt Romney+267 | 1,98746.0% | 2,25452.1% | 821.9% | 4,323 |
| Lyon County | Mitt Romney+3,555 | 1,42321.9% | 4,97876.5% | 1081.7% | 6,509 |
| Madison County | Mitt Romney+1,008 | 3,63042.9% | 4,63854.8% | 1902.2% | 8,458 |
| Mahaska County | Mitt Romney+2,235 | 4,21338.7% | 6,44859.2% | 2222.0% | 10,883 |
| Marion County | Mitt Romney+2,321 | 7,50742.4% | 9,82855.6% | 3522.0% | 17,687 |
| Marshall County | Barack Obama+1,785 | 10,25753.8% | 8,47244.4% | 3351.8% | 19,064 |
| Mills County | Mitt Romney+1,368 | 2,84839.5% | 4,21658.5% | 1482.1% | 7,212 |
| Mitchell County | Barack Obama+188 | 2,83150.7% | 2,64347.3% | 1122.0% | 5,586 |
| Monona County | Mitt Romney+456 | 2,10144.3% | 2,55753.9% | 841.8% | 4,742 |
| Monroe County | Mitt Romney+295 | 1,73145.2% | 2,02652.9% | 731.9% | 3,830 |
| Montgomery County | Mitt Romney+1,079 | 1,92238.2% | 3,00159.7% | 1022.0% | 5,025 |
| Muscatine County | Barack Obama+3,155 | 11,32357.0% | 8,16841.1% | 3741.9% | 19,865 |
| O'Brien County | Mitt Romney+3,297 | 1,96926.8% | 5,26671.7% | 1061.4% | 7,341 |
| Osceola County | Mitt Romney+1,318 | 91228.6% | 2,23069.8% | 521.6% | 3,194 |
| Page County | Mitt Romney+1,735 | 2,61336.9% | 4,34861.4% | 1181.7% | 7,079 |
| Palo Alto County | Mitt Romney+521 | 2,13943.8% | 2,66054.4% | 881.8% | 4,887 |
| Plymouth County | Mitt Romney+4,433 | 4,16432.2% | 8,59766.4% | 1891.5% | 12,950 |
| Pocahontas County | Mitt Romney+873 | 1,52337.8% | 2,39659.4% | 1132.8% | 4,032 |
| Polk County | Barack Obama+32,369 | 128,46556.1% | 96,09642.0% | 4,3211.9% | 228,882 |
| Pottawattamie County | Mitt Romney+2,216 | 19,64446.4% | 21,86051.7% | 7971.9% | 42,301 |
| Poweshiek County | Barack Obama+933 | 5,35753.7% | 4,42444.4% | 1941.9% | 9,975 |
| Ringgold County | Mitt Romney+182 | 1,18645.6% | 1,36852.6% | 451.7% | 2,599 |
| Sac County | Mitt Romney+972 | 2,12240.1% | 3,09458.5% | 751.4% | 5,291 |
| Scott County | Barack Obama+12,401 | 50,65256.1% | 38,25142.4% | 1,3601.5% | 90,263 |
| Shelby County | Mitt Romney+1,442 | 2,46938.1% | 3,91160.3% | 1031.6% | 6,483 |
| Sioux County | Mitt Romney+11,707 | 2,70015.6% | 14,40783.2% | 2011.2% | 17,308 |
| Story County | Barack Obama+6,524 | 26,19255.6% | 19,66841.7% | 1,2902.7% | 47,150 |
| Tama County | Barack Obama+670 | 4,76852.9% | 4,09845.4% | 1511.7% | 9,017 |
| Taylor County | Mitt Romney+421 | 1,26242.1% | 1,68356.2% | 501.7% | 2,995 |
| Union County | Barack Obama+230 | 3,04351.1% | 2,81347.2% | 1011.7% | 5,957 |
| Van Buren County | Mitt Romney+662 | 1,40239.3% | 2,06457.8% | 1032.9% | 3,569 |
| Wapello County | Barack Obama+1,874 | 8,66354.9% | 6,78943.1% | 3182.0% | 15,770 |
| Warren County | Mitt Romney+501 | 12,55148.1% | 13,05250.1% | 4691.8% | 26,072 |
| Washington County | Mitt Romney+447 | 5,11546.5% | 5,56250.5% | 3273.0% | 11,004 |
| Wayne County | Mitt Romney+332 | 1,25143.1% | 1,58354.6% | 662.3% | 2,900 |
| Webster County | Barack Obama+1,068 | 9,53752.1% | 8,46946.3% | 2861.6% | 18,292 |
| Winnebago County | Mitt Romney+3 | 2,90349.1% | 2,90649.1% | 1091.8% | 5,918 |
| Winneshiek County | Barack Obama+1,634 | 6,25656.4% | 4,62241.7% | 2061.9% | 11,084 |
| Woodbury County | Barack Obama+461 | 22,30249.5% | 21,84148.5% | 8761.9% | 45,019 |
| Worth County | Barack Obama+606 | 2,35056.3% | 1,74441.8% | 781.9% | 4,172 |
| Wright County | Mitt Romney+513 | 2,83645.2% | 3,34953.3% | 931.5% | 6,278 |
Nominees: Barack Obama (D) · Mitt Romney (R)
Iowa's presidential margins
1892–2024, the 2012 contest in context
| Year | Margin (D minus R) |
|---|---|
| 1892 | −5.3% |
| 1896 | −12.6% |
| 1900 | −18.6% |
| 1904 | −32.7% |
| 1908 | −15.0% |
| 1912 | +13.3% |
| 1916 | −11.4% |
| 1920 | −45.5% |
| 1924 | −38.6% |
| 1928 | −24.2% |
| 1932 | +17.7% |
| 1936 | +11.7% |
| 1940 | −4.4% |
| 1944 | −4.5% |
| 1948 | +2.7% |
| 1952 | −28.2% |
| 1956 | −18.4% |
| 1960 | −13.5% |
| 1964 | +24.0% |
| 1968 | −12.2% |
| 1972 | −17.1% |
| 1976 | −1.0% |
| 1980 | −12.7% |
| 1984 | −7.4% |
| 1988 | +10.2% |
| 1992 | +6.0% |
| 1996 | +10.3% |
| 2000 | +0.3% |
| 2004 | −0.7% |
| 2008 | +9.5% |
| 2012 | +5.8% |
| 2016 | −9.3% |
| 2020 | −8.2% |
| 2024 | −13.2% |
Same ballot, 2012IA
Source. MIT Election Data + Science Lab — 2012 presidential returns · official county-level results. Real returns — nothing estimated.