Iowa — 2016 presidential election
Recent presidential results
Akashicstate2016 presidential electionIowa · PresidentTrumpR+9.3
How it voted
Share of the 2016 vote
| Donald Trump ✓Republican | 50.7% | 800,983 |
|---|---|---|
| Hillary ClintonDemocratic | 41.3% | 653,669 |
| OtherAll other candidates | 8.0% | 126,719 |
2016presidential margin
D+60R+60
99 counties, each filled by 2016 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+34.5 |
| Adams County, IA | Republican | R+38.9 |
| Allamakee County, IA | Republican | R+23.8 |
| Appanoose County, IA | Republican | R+35.8 |
| Audubon County, IA | Republican | R+30.3 |
| Benton County, IA | Republican | R+25.4 |
| Black Hawk County, IA | Democratic | D+7.3 |
| Boone County, IA | Republican | R+13.6 |
| Bremer County, IA | Republican | R+13.5 |
| Buchanan County, IA | Republican | R+14.8 |
| Buena Vista County, IA | Republican | R+24.4 |
| Butler County, IA | Republican | R+36.4 |
| Calhoun County, IA | Republican | R+39.7 |
| Carroll County, IA | Republican | R+31.2 |
| Cass County, IA | Republican | R+39.0 |
| Cedar County, IA | Republican | R+17.6 |
| Cerro Gordo County, IA | Republican | R+7.6 |
| Cherokee County, IA | Republican | R+39.8 |
| Chickasaw County, IA | Republican | R+22.6 |
| Clarke County, IA | Republican | R+27.7 |
| Clay County, IA | Republican | R+41.7 |
| Clayton County, IA | Republican | R+22.6 |
| Clinton County, IA | Republican | R+5.1 |
| Crawford County, IA | Republican | R+37.3 |
| Dallas County, IA | Republican | R+9.4 |
| Davis County, IA | Republican | R+44.3 |
| Decatur County, IA | Republican | R+28.9 |
| Delaware County, IA | Republican | R+29.3 |
| Des Moines County, IA | Republican | R+6.8 |
| Dickinson County, IA | Republican | R+35.4 |
| Dubuque County, IA | Republican | R+1.2 |
| Emmet County, IA | Republican | R+36.7 |
| Fayette County, IA | Republican | R+19.1 |
| Floyd County, IA | Republican | R+14.7 |
| Franklin County, IA | Republican | R+33.1 |
| Fremont County, IA | Republican | R+39.7 |
| Greene County, IA | Republican | R+23.2 |
| Grundy County, IA | Republican | R+38.5 |
| Guthrie County, IA | Republican | R+32.6 |
| Hamilton County, IA | Republican | R+22.3 |
| Hancock County, IA | Republican | R+40.3 |
| Hardin County, IA | Republican | R+28.6 |
| Harrison County, IA | Republican | R+36.7 |
| Henry County, IA | Republican | R+30.3 |
| Howard County, IA | Republican | R+20.1 |
| Humboldt County, IA | Republican | R+45.0 |
| Ida County, IA | Republican | R+51.1 |
| Iowa County, IA | Republican | R+23.6 |
| Jackson County, IA | Republican | R+18.9 |
| Jasper County, IA | Republican | R+17.9 |
| Jefferson County, IA | Republican | R+0.5 |
| Johnson County, IA | Democratic | D+37.6 |
| Jones County, IA | Republican | R+18.9 |
| Keokuk County, IA | Republican | R+40.7 |
| Kossuth County, IA | Republican | R+35.6 |
| Lee County, IA | Republican | R+15.8 |
| Linn County, IA | Democratic | D+8.9 |
| Louisa County, IA | Republican | R+28.0 |
| Lucas County, IA | Republican | R+37.3 |
| Lyon County, IA | Republican | R+66.4 |
| Madison County, IA | Republican | R+30.8 |
| Mahaska County, IA | Republican | R+44.9 |
| Marion County, IA | Republican | R+30.5 |
| Marshall County, IA | Republican | R+8.2 |
| Mills County, IA | Republican | R+38.3 |
| Mitchell County, IA | Republican | R+23.6 |
| Monona County, IA | Republican | R+40.5 |
| Monroe County, IA | Republican | R+40.5 |
| Montgomery County, IA | Republican | R+41.6 |
| Muscatine County, IA | Republican | R+6.2 |
| O'Brien County, IA | Republican | R+59.5 |
| Osceola County, IA | Republican | R+60.9 |
| Page County, IA | Republican | R+43.3 |
| Palo Alto County, IA | Republican | R+35.4 |
| Plymouth County, IA | Republican | R+51.2 |
| Pocahontas County, IA | Republican | R+44.4 |
| Polk County, IA | Democratic | D+11.3 |
| Pottawattamie County, IA | Republican | R+21.1 |
| Poweshiek County, IA | Republican | R+6.5 |
| Ringgold County, IA | Republican | R+38.9 |
| Sac County, IA | Republican | R+46.3 |
| Scott County, IA | Democratic | D+1.5 |
| Shelby County, IA | Republican | R+41.9 |
| Sioux County, IA | Republican | R+68.1 |
| Story County, IA | Democratic | D+12.3 |
| Tama County, IA | Republican | R+20.0 |
| Taylor County, IA | Republican | R+44.1 |
| Union County, IA | Republican | R+27.2 |
| Van Buren County, IA | Republican | R+46.8 |
| Wapello County, IA | Republican | R+20.4 |
| Warren County, IA | Republican | R+16.0 |
| Washington County, IA | Republican | R+20.1 |
| Wayne County, IA | Republican | R+45.2 |
| Webster County, IA | Republican | R+21.3 |
| Winnebago County, IA | Republican | R+25.9 |
| Winneshiek County, IA | Republican | R+0.8 |
| Woodbury County, IA | Republican | R+19.3 |
| Worth County, IA | Republican | R+21.4 |
| Wright County, IA | Republican | R+31.3 |
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 | Donald Trump+1,328 | 2,46164.0% | 1,13329.4% | 2546.6% | 3,848 |
| Adams County | Donald Trump+830 | 1,39565.5% | 56526.5% | 1718.0% | 2,131 |
| Allamakee County | Donald Trump+1,672 | 4,09358.2% | 2,42134.4% | 5217.4% | 7,035 |
| Appanoose County | Donald Trump+2,219 | 4,03365.1% | 1,81429.3% | 3495.6% | 6,196 |
| Audubon County | Donald Trump+1,056 | 2,13661.3% | 1,08031.0% | 2707.7% | 3,486 |
| Benton County | Donald Trump+3,554 | 8,23258.9% | 4,67833.5% | 1,0617.6% | 13,971 |
| Black Hawk County | Hillary Clinton+4,757 | 27,47642.3% | 32,23349.6% | 5,2988.1% | 65,007 |
| Boone County | Donald Trump+1,943 | 7,48452.3% | 5,54138.7% | 1,2859.0% | 14,310 |
| Bremer County | Donald Trump+1,852 | 7,20852.6% | 5,35639.1% | 1,1278.2% | 13,691 |
| Buchanan County | Donald Trump+1,540 | 5,51053.1% | 3,97038.3% | 8978.6% | 10,377 |
| Buena Vista County | Donald Trump+2,047 | 4,90358.5% | 2,85634.1% | 6227.4% | 8,381 |
| Butler County | Donald Trump+2,764 | 4,92164.9% | 2,15728.4% | 5056.7% | 7,583 |
| Calhoun County | Donald Trump+2,070 | 3,46866.5% | 1,39826.8% | 3526.7% | 5,218 |
| Carroll County | Donald Trump+3,329 | 6,63862.1% | 3,30931.0% | 7356.9% | 10,682 |
| Cass County | Donald Trump+2,810 | 4,76166.1% | 1,95127.1% | 4866.8% | 7,198 |
| Cedar County | Donald Trump+1,696 | 5,29555.0% | 3,59937.4% | 7377.7% | 9,631 |
| Cerro Gordo County | Donald Trump+1,759 | 11,62150.2% | 9,86242.6% | 1,6547.1% | 23,137 |
| Cherokee County | Donald Trump+2,513 | 4,19266.4% | 1,67926.6% | 4447.0% | 6,315 |
| Chickasaw County | Donald Trump+1,476 | 3,74257.4% | 2,26634.8% | 5107.8% | 6,518 |
| Clarke County | Donald Trump+1,248 | 2,71360.2% | 1,46532.5% | 3317.3% | 4,509 |
| Clay County | Donald Trump+3,628 | 5,87767.5% | 2,24925.8% | 5806.7% | 8,706 |
| Clayton County | Donald Trump+2,080 | 5,31757.7% | 3,23735.1% | 6637.2% | 9,217 |
| Clinton County | Donald Trump+1,181 | 11,27648.3% | 10,09543.2% | 1,9768.5% | 23,347 |
| Crawford County | Donald Trump+2,626 | 4,61765.6% | 1,99128.3% | 4296.1% | 7,037 |
| Dallas County | Donald Trump+3,638 | 19,33950.1% | 15,70140.7% | 3,5489.2% | 38,588 |
| Davis County | Donald Trump+1,746 | 2,72369.1% | 97724.8% | 2436.2% | 3,943 |
| Decatur County | Donald Trump+1,095 | 2,29660.7% | 1,20131.7% | 2877.6% | 3,784 |
| Delaware County | Donald Trump+2,737 | 5,69461.0% | 2,95731.7% | 6887.4% | 9,339 |
| Des Moines County | Donald Trump+1,317 | 9,52949.4% | 8,21242.6% | 1,5307.9% | 19,271 |
| Dickinson County | Donald Trump+3,697 | 6,75364.6% | 3,05629.2% | 6486.2% | 10,457 |
| Dubuque County | Donald Trump+610 | 23,46046.7% | 22,85045.5% | 3,9117.8% | 50,221 |
| Emmet County | Donald Trump+1,767 | 3,12464.9% | 1,35728.2% | 3296.8% | 4,810 |
| Fayette County | Donald Trump+1,931 | 5,62055.7% | 3,68936.5% | 7897.8% | 10,098 |
| Floyd County | Donald Trump+1,196 | 4,37553.6% | 3,17939.0% | 6057.4% | 8,159 |
| Franklin County | Donald Trump+1,670 | 3,16362.7% | 1,49329.6% | 3907.7% | 5,046 |
| Fremont County | Donald Trump+1,444 | 2,40766.3% | 96326.5% | 2637.2% | 3,633 |
| Greene County | Donald Trump+1,129 | 2,82057.8% | 1,69134.7% | 3657.5% | 4,876 |
| Grundy County | Donald Trump+2,671 | 4,52765.2% | 1,85626.7% | 5618.1% | 6,944 |
| Guthrie County | Donald Trump+1,896 | 3,62862.4% | 1,73229.8% | 4567.8% | 5,816 |
| Hamilton County | Donald Trump+1,737 | 4,46357.3% | 2,72635.0% | 5967.7% | 7,785 |
| Hancock County | Donald Trump+2,390 | 3,97767.0% | 1,58726.7% | 3696.2% | 5,933 |
| Hardin County | Donald Trump+2,467 | 5,25460.8% | 2,78732.3% | 5986.9% | 8,639 |
| Harrison County | Donald Trump+2,771 | 4,90264.9% | 2,13128.2% | 5196.9% | 7,552 |
| Henry County | Donald Trump+2,875 | 5,77960.8% | 2,90430.6% | 8178.6% | 9,500 |
| Howard County | Donald Trump+934 | 2,61156.3% | 1,67736.1% | 3527.6% | 4,640 |
| Humboldt County | Donald Trump+2,316 | 3,56869.4% | 1,25224.4% | 3216.2% | 5,141 |
| Ida County | Donald Trump+1,863 | 2,65572.8% | 79221.7% | 2015.5% | 3,648 |
| Iowa County | Donald Trump+2,121 | 5,20557.8% | 3,08434.3% | 7137.9% | 9,002 |
| Jackson County | Donald Trump+1,987 | 5,82455.4% | 3,83736.5% | 8438.0% | 10,504 |
| Jasper County | Donald Trump+3,451 | 10,56054.9% | 7,10937.0% | 1,5578.1% | 19,226 |
| Jefferson County | Donald Trump+38 | 3,74845.2% | 3,71044.8% | 82710.0% | 8,285 |
| Johnson County | Hillary Clinton+29,156 | 21,04427.2% | 50,20064.8% | 6,2328.0% | 77,476 |
| Jones County | Donald Trump+1,933 | 5,72055.9% | 3,78737.0% | 7297.1% | 10,236 |
| Keokuk County | Donald Trump+2,048 | 3,39067.3% | 1,34226.7% | 3036.0% | 5,035 |
| Kossuth County | Donald Trump+3,110 | 5,65364.7% | 2,54329.1% | 5466.2% | 8,742 |
| Lee County | Donald Trump+2,588 | 8,80353.9% | 6,21538.0% | 1,3298.1% | 16,347 |
| Linn County | Hillary Clinton+10,545 | 48,39041.0% | 58,93549.9% | 10,7919.1% | 118,116 |
| Louisa County | Donald Trump+1,421 | 3,06960.5% | 1,64832.5% | 3597.1% | 5,076 |
| Lucas County | Donald Trump+1,638 | 2,87765.5% | 1,23928.2% | 2766.3% | 4,392 |
| Lyon County | Donald Trump+4,272 | 5,19280.7% | 92014.3% | 3195.0% | 6,431 |
| Madison County | Donald Trump+2,682 | 5,36061.6% | 2,67830.8% | 6687.7% | 8,706 |
| Mahaska County | Donald Trump+4,813 | 7,43269.3% | 2,61924.4% | 6726.3% | 10,723 |
| Marion County | Donald Trump+5,480 | 10,96260.9% | 5,48230.5% | 1,5478.6% | 17,991 |
| Marshall County | Donald Trump+1,494 | 9,14650.3% | 7,65242.1% | 1,3777.6% | 18,175 |
| Mills County | Donald Trump+2,977 | 5,06765.2% | 2,09026.9% | 6157.9% | 7,772 |
| Mitchell County | Donald Trump+1,302 | 3,19057.8% | 1,88834.2% | 4438.0% | 5,521 |
| Monona County | Donald Trump+1,873 | 3,12067.4% | 1,24726.9% | 2625.7% | 4,629 |
| Monroe County | Donald Trump+1,582 | 2,63867.5% | 1,05627.0% | 2135.5% | 3,907 |
| Montgomery County | Donald Trump+2,122 | 3,43667.3% | 1,31425.8% | 3526.9% | 5,102 |
| Muscatine County | Donald Trump+1,216 | 9,58448.8% | 8,36842.6% | 1,6718.5% | 19,623 |
| O'Brien County | Donald Trump+4,437 | 5,75277.1% | 1,31517.6% | 3935.3% | 7,460 |
| Osceola County | Donald Trump+1,979 | 2,53177.9% | 55217.0% | 1685.2% | 3,251 |
| Page County | Donald Trump+3,086 | 4,89368.7% | 1,80725.4% | 4215.9% | 7,121 |
| Palo Alto County | Donald Trump+1,683 | 3,08164.7% | 1,39829.4% | 2815.9% | 4,760 |
| Plymouth County | Donald Trump+6,795 | 9,68072.9% | 2,88521.7% | 7095.3% | 13,274 |
| Pocahontas County | Donald Trump+1,739 | 2,70269.0% | 96324.6% | 2536.5% | 3,918 |
| Polk County | Hillary Clinton+26,312 | 93,49240.1% | 119,80451.3% | 20,0898.6% | 233,385 |
| Pottawattamie County | Donald Trump+9,092 | 24,44756.8% | 15,35535.7% | 3,2567.6% | 43,058 |
| Poweshiek County | Donald Trump+642 | 4,94649.9% | 4,30443.4% | 6666.7% | 9,916 |
| Ringgold County | Donald Trump+1,071 | 1,82466.3% | 75327.4% | 1756.4% | 2,752 |
| Sac County | Donald Trump+2,433 | 3,70370.4% | 1,27024.2% | 2845.4% | 5,257 |
| Scott County | Hillary Clinton+1,291 | 39,14944.9% | 40,44046.3% | 7,6978.8% | 87,286 |
| Shelby County | Donald Trump+2,700 | 4,36267.6% | 1,66225.8% | 4246.6% | 6,448 |
| Sioux County | Donald Trump+12,485 | 14,78580.7% | 2,30012.5% | 1,2476.8% | 18,332 |
| Story County | Hillary Clinton+6,251 | 19,45838.2% | 25,70950.4% | 5,80711.4% | 50,974 |
| Tama County | Donald Trump+1,775 | 4,97156.1% | 3,19636.0% | 6997.9% | 8,866 |
| Taylor County | Donald Trump+1,353 | 2,11168.9% | 75824.7% | 1966.4% | 3,065 |
| Union County | Donald Trump+1,603 | 3,52559.9% | 1,92232.7% | 4387.4% | 5,885 |
| Van Buren County | Donald Trump+1,682 | 2,52770.3% | 84523.5% | 2236.2% | 3,595 |
| Wapello County | Donald Trump+3,121 | 8,71557.0% | 5,59436.6% | 9686.3% | 15,277 |
| Warren County | Donald Trump+4,403 | 14,81453.9% | 10,41137.8% | 2,2828.3% | 27,507 |
| Washington County | Donald Trump+2,230 | 6,17355.7% | 3,94335.5% | 9768.8% | 11,092 |
| Wayne County | Donald Trump+1,350 | 2,06969.2% | 71924.1% | 2016.7% | 2,989 |
| Webster County | Donald Trump+3,751 | 10,05657.2% | 6,30535.8% | 1,2327.0% | 17,593 |
| Winnebago County | Donald Trump+1,516 | 3,44758.8% | 1,93132.9% | 4868.3% | 5,864 |
| Winneshiek County | Donald Trump+90 | 5,34446.4% | 5,25445.6% | 9137.9% | 11,511 |
| Woodbury County | Donald Trump+8,517 | 24,72756.0% | 16,21036.7% | 3,2307.3% | 44,167 |
| Worth County | Donald Trump+923 | 2,45357.0% | 1,53035.5% | 3227.5% | 4,305 |
| Wright County | Donald Trump+1,904 | 3,80062.4% | 1,89631.1% | 3966.5% | 6,092 |
Nominees: Hillary Clinton (D) · Donald Trump (R)
Iowa's presidential margins
1892–2024, the 2016 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, 2016IA
Source. MIT Election Data + Science Lab — 2016 presidential returns · official county-level results. Real returns — nothing estimated.