Iowa — 1980 presidential election
Recent presidential results
Akashicstate1980 presidential electionIowa · PresidentReaganR+12.7
How it voted
Share of the 1980 vote
| Ronald Reagan ✓Republican | 51.3% | 676,026 |
|---|---|---|
| Jimmy CarterDemocratic | 38.6% | 508,672 |
| OtherAll other candidates | 10.1% | 132,963 |
1980presidential margin
D+60R+60
99 counties, each filled by 1980 D-vs-R margin. Hover any county for its result.
Iowa cast 8 electoral votes this cycle.
County-level results (99 counties) — table
| County | Winner | Margin |
|---|---|---|
| Adair County, IA | Republican | R+29.2 |
| Adams County, IA | Republican | R+28.1 |
| Allamakee County, IA | Republican | R+27.8 |
| Appanoose County, IA | Republican | R+11.5 |
| Audubon County, IA | Republican | R+22.4 |
| Benton County, IA | Republican | R+10.4 |
| Black Hawk County, IA | Republican | R+3.4 |
| Boone County, IA | Republican | R+5.0 |
| Bremer County, IA | Republican | R+28.1 |
| Buchanan County, IA | Republican | R+15.2 |
| Buena Vista County, IA | Republican | R+18.6 |
| Butler County, IA | Republican | R+38.2 |
| Calhoun County, IA | Republican | R+23.4 |
| Carroll County, IA | Republican | R+11.6 |
| Cass County, IA | Republican | R+39.6 |
| Cedar County, IA | Republican | R+23.2 |
| Cerro Gordo County, IA | Republican | R+8.0 |
| Cherokee County, IA | Republican | R+18.2 |
| Chickasaw County, IA | Republican | R+13.4 |
| Clarke County, IA | Republican | R+18.2 |
| Clay County, IA | Republican | R+14.8 |
| Clayton County, IA | Republican | R+19.7 |
| Clinton County, IA | Republican | R+13.2 |
| Crawford County, IA | Republican | R+29.8 |
| Dallas County, IA | Republican | R+7.6 |
| Davis County, IA | Republican | R+8.0 |
| Decatur County, IA | Republican | R+3.5 |
| Delaware County, IA | Republican | R+21.1 |
| Des Moines County, IA | Democratic | D+4.0 |
| Dickinson County, IA | Republican | R+18.9 |
| Dubuque County, IA | Democratic | D+0.1 |
| Emmet County, IA | Republican | R+15.9 |
| Fayette County, IA | Republican | R+17.3 |
| Floyd County, IA | Republican | R+11.3 |
| Franklin County, IA | Republican | R+24.1 |
| Fremont County, IA | Republican | R+36.1 |
| Greene County, IA | Republican | R+15.9 |
| Grundy County, IA | Republican | R+39.5 |
| Guthrie County, IA | Republican | R+24.4 |
| Hamilton County, IA | Republican | R+24.2 |
| Hancock County, IA | Republican | R+28.9 |
| Hardin County, IA | Republican | R+15.8 |
| Harrison County, IA | Republican | R+33.3 |
| Henry County, IA | Republican | R+13.2 |
| Howard County, IA | Republican | R+13.6 |
| Humboldt County, IA | Republican | R+29.4 |
| Ida County, IA | Republican | R+36.5 |
| Iowa County, IA | Republican | R+20.6 |
| Jackson County, IA | Republican | R+11.0 |
| Jasper County, IA | Republican | R+6.1 |
| Jefferson County, IA | Republican | R+20.9 |
| Johnson County, IA | Democratic | D+15.1 |
| Jones County, IA | Republican | R+11.1 |
| Keokuk County, IA | Republican | R+12.6 |
| Kossuth County, IA | Republican | R+17.1 |
| Lee County, IA | Republican | R+3.2 |
| Linn County, IA | Republican | R+5.5 |
| Louisa County, IA | Republican | R+18.1 |
| Lucas County, IA | Republican | R+12.3 |
| Lyon County, IA | Republican | R+47.0 |
| Madison County, IA | Republican | R+12.9 |
| Mahaska County, IA | Republican | R+16.2 |
| Marion County, IA | Republican | R+8.7 |
| Marshall County, IA | Republican | R+18.3 |
| Mills County, IA | Republican | R+45.1 |
| Mitchell County, IA | Republican | R+23.2 |
| Monona County, IA | Republican | R+30.4 |
| Monroe County, IA | Republican | R+3.3 |
| Montgomery County, IA | Republican | R+42.3 |
| Muscatine County, IA | Republican | R+14.7 |
| O'Brien County, IA | Republican | R+35.1 |
| Osceola County, IA | Republican | R+32.3 |
| Page County, IA | Republican | R+49.2 |
| Palo Alto County, IA | Republican | R+9.4 |
| Plymouth County, IA | Republican | R+34.3 |
| Pocahontas County, IA | Republican | R+21.7 |
| Polk County, IA | Republican | R+1.5 |
| Pottawattamie County, IA | Republican | R+28.7 |
| Poweshiek County, IA | Republican | R+11.7 |
| Ringgold County, IA | Republican | R+22.6 |
| Sac County, IA | Republican | R+27.9 |
| Scott County, IA | Republican | R+12.2 |
| Shelby County, IA | Republican | R+34.8 |
| Sioux County, IA | Republican | R+57.0 |
| Story County, IA | Republican | R+6.2 |
| Tama County, IA | Republican | R+20.8 |
| Taylor County, IA | Republican | R+35.3 |
| Union County, IA | Republican | R+19.9 |
| Van Buren County, IA | Republican | R+22.6 |
| Wapello County, IA | Democratic | D+8.2 |
| Warren County, IA | Republican | R+4.8 |
| Washington County, IA | Republican | R+14.3 |
| Wayne County, IA | Republican | R+14.5 |
| Webster County, IA | Republican | R+6.8 |
| Winnebago County, IA | Republican | R+24.7 |
| Winneshiek County, IA | Republican | R+19.7 |
| Woodbury County, IA | Republican | R+17.6 |
| Worth County, IA | Republican | R+12.2 |
| Wright County, IA | Republican | R+18.1 |
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 | Ronald Reagan+1,367 | 2,82160.2% | 1,45431.0% | 4148.8% | 4,689 |
| Adams County | Ronald Reagan+839 | 1,77959.6% | 94031.5% | 2658.9% | 2,984 |
| Allamakee County | Ronald Reagan+1,830 | 4,00060.7% | 2,17032.9% | 4166.3% | 6,586 |
| Appanoose County | Ronald Reagan+775 | 3,54452.7% | 2,76941.2% | 4156.2% | 6,728 |
| Audubon County | Ronald Reagan+977 | 2,52358.0% | 1,54635.5% | 2846.5% | 4,353 |
| Benton County | Ronald Reagan+1,106 | 5,32950.1% | 4,22339.7% | 1,08310.2% | 10,635 |
| Black Hawk County | Ronald Reagan+2,184 | 29,62746.5% | 27,44343.1% | 6,65210.4% | 63,722 |
| Boone County | Ronald Reagan+606 | 5,73247.4% | 5,12642.4% | 1,22910.2% | 12,087 |
| Bremer County | Ronald Reagan+3,179 | 6,70659.3% | 3,52731.2% | 1,0859.6% | 11,318 |
| Buchanan County | Ronald Reagan+1,436 | 5,04153.5% | 3,60538.3% | 7768.2% | 9,422 |
| Buena Vista County | Ronald Reagan+1,804 | 5,27254.5% | 3,46835.8% | 9369.7% | 9,676 |
| Butler County | Ronald Reagan+2,740 | 4,73065.9% | 1,99027.7% | 4576.4% | 7,177 |
| Calhoun County | Ronald Reagan+1,483 | 3,63357.4% | 2,15034.0% | 5458.6% | 6,328 |
| Carroll County | Ronald Reagan+1,132 | 5,01751.5% | 3,88539.9% | 8358.6% | 9,737 |
| Cass County | Ronald Reagan+3,215 | 5,39166.3% | 2,17626.8% | 5596.9% | 8,126 |
| Cedar County | Ronald Reagan+1,809 | 4,39856.4% | 2,58933.2% | 81010.4% | 7,797 |
| Cerro Gordo County | Ronald Reagan+1,826 | 11,18949.0% | 9,36341.0% | 2,27610.0% | 22,828 |
| Cherokee County | Ronald Reagan+1,368 | 4,08754.5% | 2,71936.3% | 6949.3% | 7,500 |
| Chickasaw County | Ronald Reagan+994 | 3,92952.9% | 2,93539.5% | 5697.7% | 7,433 |
| Clarke County | Ronald Reagan+803 | 2,41754.9% | 1,61436.6% | 3738.5% | 4,404 |
| Clay County | Ronald Reagan+1,300 | 4,47951.1% | 3,17936.3% | 1,10612.6% | 8,764 |
| Clayton County | Ronald Reagan+1,818 | 5,11555.6% | 3,29735.8% | 7948.6% | 9,206 |
| Clinton County | Ronald Reagan+3,327 | 13,02551.7% | 9,69838.5% | 2,4889.9% | 25,211 |
| Crawford County | Ronald Reagan+2,383 | 4,88361.0% | 2,50031.2% | 6197.7% | 8,002 |
| Dallas County | Ronald Reagan+986 | 6,29648.6% | 5,31041.0% | 1,35810.5% | 12,964 |
| Davis County | Ronald Reagan+314 | 2,00351.0% | 1,68943.0% | 2386.1% | 3,930 |
| Decatur County | Ronald Reagan+164 | 2,21247.7% | 2,04844.1% | 3808.2% | 4,640 |
| Delaware County | Ronald Reagan+1,645 | 4,31655.4% | 2,67134.3% | 80710.4% | 7,794 |
| Des Moines County | Jimmy Carter+819 | 9,15844.9% | 9,97748.9% | 1,2826.3% | 20,417 |
| Dickinson County | Ronald Reagan+1,408 | 4,02854.1% | 2,62035.2% | 79410.7% | 7,442 |
| Dubuque County | Jimmy Carter+40 | 18,64944.9% | 18,68945.0% | 4,20110.1% | 41,539 |
| Emmet County | Ronald Reagan+909 | 3,06253.5% | 2,15337.6% | 5098.9% | 5,724 |
| Fayette County | Ronald Reagan+1,997 | 6,37455.3% | 4,37738.0% | 7726.7% | 11,523 |
| Floyd County | Ronald Reagan+1,031 | 4,66551.2% | 3,63439.9% | 8199.0% | 9,118 |
| Franklin County | Ronald Reagan+1,370 | 3,29057.9% | 1,92033.8% | 4728.3% | 5,682 |
| Fremont County | Ronald Reagan+1,490 | 2,69365.2% | 1,20329.1% | 2355.7% | 4,131 |
| Greene County | Ronald Reagan+944 | 3,15453.1% | 2,21037.2% | 5759.7% | 5,939 |
| Grundy County | Ronald Reagan+2,775 | 4,64466.1% | 1,86926.6% | 5137.3% | 7,026 |
| Guthrie County | Ronald Reagan+1,348 | 3,21458.3% | 1,86633.8% | 4347.9% | 5,514 |
| Hamilton County | Ronald Reagan+2,004 | 4,74557.4% | 2,74133.2% | 7809.4% | 8,266 |
| Hancock County | Ronald Reagan+1,763 | 3,68160.4% | 1,91831.5% | 4938.1% | 6,092 |
| Hardin County | Ronald Reagan+1,572 | 5,32953.7% | 3,75737.9% | 8348.4% | 9,920 |
| Harrison County | Ronald Reagan+2,350 | 4,50263.8% | 2,15230.5% | 3995.7% | 7,053 |
| Henry County | Ronald Reagan+1,113 | 4,43052.4% | 3,31739.2% | 7158.4% | 8,462 |
| Howard County | Ronald Reagan+761 | 2,97553.4% | 2,21439.7% | 3876.9% | 5,576 |
| Humboldt County | Ronald Reagan+1,735 | 3,57560.6% | 1,84031.2% | 4848.2% | 5,899 |
| Ida County | Ronald Reagan+1,590 | 2,82564.9% | 1,23528.4% | 2946.8% | 4,354 |
| Iowa County | Ronald Reagan+1,547 | 4,15355.2% | 2,60634.6% | 76310.1% | 7,522 |
| Jackson County | Ronald Reagan+961 | 4,47951.2% | 3,51840.2% | 7578.6% | 8,754 |
| Jasper County | Ronald Reagan+1,028 | 8,28648.8% | 7,25842.8% | 1,4228.4% | 16,966 |
| Jefferson County | Ronald Reagan+1,522 | 4,09956.2% | 2,57735.3% | 6238.5% | 7,299 |
| Johnson County | Jimmy Carter+6,480 | 13,64231.7% | 20,12246.8% | 9,23321.5% | 42,997 |
| Jones County | Ronald Reagan+985 | 4,50650.6% | 3,52139.5% | 8869.9% | 8,913 |
| Keokuk County | Ronald Reagan+755 | 3,14552.6% | 2,39040.0% | 4407.4% | 5,975 |
| Kossuth County | Ronald Reagan+1,758 | 5,56854.3% | 3,81037.1% | 8848.6% | 10,262 |
| Lee County | Ronald Reagan+589 | 8,79348.1% | 8,20444.9% | 1,2686.9% | 18,265 |
| Linn County | Ronald Reagan+4,304 | 36,25446.3% | 31,95040.8% | 10,02012.8% | 78,224 |
| Louisa County | Ronald Reagan+830 | 2,53055.2% | 1,70037.1% | 3547.7% | 4,584 |
| Lucas County | Ronald Reagan+604 | 2,59352.6% | 1,98940.4% | 3477.0% | 4,929 |
| Lyon County | Ronald Reagan+2,918 | 4,34970.1% | 1,43123.1% | 4286.9% | 6,208 |
| Madison County | Ronald Reagan+824 | 3,32051.8% | 2,49638.9% | 5959.3% | 6,411 |
| Mahaska County | Ronald Reagan+1,682 | 5,65054.5% | 3,96838.3% | 7457.2% | 10,363 |
| Marion County | Ronald Reagan+1,175 | 6,66549.3% | 5,49040.6% | 1,36310.1% | 13,518 |
| Marshall County | Ronald Reagan+3,593 | 10,70754.6% | 7,11436.2% | 1,8059.2% | 19,626 |
| Mills County | Ronald Reagan+2,337 | 3,58169.1% | 1,24424.0% | 3586.9% | 5,183 |
| Mitchell County | Ronald Reagan+1,361 | 3,40158.0% | 2,04034.8% | 4237.2% | 5,864 |
| Monona County | Ronald Reagan+1,608 | 3,26861.8% | 1,66031.4% | 3566.7% | 5,284 |
| Monroe County | Ronald Reagan+137 | 2,00348.7% | 1,86645.3% | 2486.0% | 4,117 |
| Montgomery County | Ronald Reagan+2,559 | 4,11568.0% | 1,55625.7% | 3836.3% | 6,054 |
| Muscatine County | Ronald Reagan+2,232 | 7,82951.7% | 5,59737.0% | 1,71911.4% | 15,145 |
| O'Brien County | Ronald Reagan+2,727 | 4,93763.6% | 2,21028.5% | 6147.9% | 7,761 |
| Osceola County | Ronald Reagan+1,126 | 2,17762.4% | 1,05130.1% | 2587.4% | 3,486 |
| Page County | Ronald Reagan+3,846 | 5,61871.9% | 1,77222.7% | 4205.4% | 7,810 |
| Palo Alto County | Ronald Reagan+562 | 3,02550.7% | 2,46341.3% | 4808.0% | 5,968 |
| Plymouth County | Ronald Reagan+3,550 | 6,51563.0% | 2,96528.7% | 8668.4% | 10,346 |
| Pocahontas County | Ronald Reagan+1,235 | 3,19456.2% | 1,95934.5% | 5339.4% | 5,686 |
| Polk County | Ronald Reagan+2,172 | 64,15644.6% | 61,98443.1% | 17,61812.3% | 143,758 |
| Pottawattamie County | Ronald Reagan+9,513 | 20,22261.0% | 10,70932.3% | 2,2396.8% | 33,170 |
| Poweshiek County | Ronald Reagan+1,069 | 4,59850.5% | 3,52938.8% | 97510.7% | 9,102 |
| Ringgold County | Ronald Reagan+734 | 1,88458.0% | 1,15035.4% | 2176.7% | 3,251 |
| Sac County | Ronald Reagan+1,749 | 3,72559.5% | 1,97631.5% | 5639.0% | 6,264 |
| Scott County | Ronald Reagan+8,310 | 34,70151.1% | 26,39138.9% | 6,83410.1% | 67,926 |
| Shelby County | Ronald Reagan+2,255 | 4,14764.0% | 1,89229.2% | 4386.8% | 6,477 |
| Sioux County | Ronald Reagan+8,070 | 10,76876.0% | 2,69819.0% | 7014.9% | 14,167 |
| Story County | Ronald Reagan+2,300 | 15,82942.4% | 13,52936.2% | 8,01321.4% | 37,371 |
| Tama County | Ronald Reagan+1,791 | 4,84056.3% | 3,04935.4% | 7138.3% | 8,602 |
| Taylor County | Ronald Reagan+1,489 | 2,71564.4% | 1,22629.1% | 2726.5% | 4,213 |
| Union County | Ronald Reagan+1,190 | 3,37256.4% | 2,18236.5% | 4257.1% | 5,979 |
| Van Buren County | Ronald Reagan+831 | 2,14258.2% | 1,31135.6% | 2276.2% | 3,680 |
| Wapello County | Jimmy Carter+1,448 | 7,47542.3% | 8,92350.5% | 1,2707.2% | 17,668 |
| Warren County | Ronald Reagan+750 | 7,36047.4% | 6,61042.6% | 1,54910.0% | 15,519 |
| Washington County | Ronald Reagan+1,090 | 3,96752.0% | 2,87737.7% | 78310.3% | 7,627 |
| Wayne County | Ronald Reagan+594 | 2,22154.1% | 1,62739.6% | 2566.2% | 4,104 |
| Webster County | Ronald Reagan+1,437 | 10,43849.6% | 9,00142.8% | 1,5917.6% | 21,030 |
| Winnebago County | Ronald Reagan+1,600 | 3,80858.8% | 2,20834.1% | 4637.1% | 6,479 |
| Winneshiek County | Ronald Reagan+1,832 | 5,03354.1% | 3,20134.4% | 1,07011.5% | 9,304 |
| Woodbury County | Ronald Reagan+7,623 | 23,55354.4% | 15,93036.8% | 3,7928.8% | 43,275 |
| Worth County | Ronald Reagan+526 | 2,24752.1% | 1,72139.9% | 3427.9% | 4,310 |
| Wright County | Ronald Reagan+1,291 | 3,93655.1% | 2,64537.0% | 5667.9% | 7,147 |
Nominees: Jimmy Carter (D) · Ronald Reagan (R)
Iowa's presidential margins
1892–2024, the 1980 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, 1980IA
Source. MIT Election Data + Science Lab — 1980 presidential returns · official county-level results. Real returns — nothing estimated.