Elections / 1920 · President · IA
Iowa — 1920 presidential election
Recent presidential results
Akashicstate1920 presidential electionIowa · PresidentHardingR+45.5
How it voted
Share of the 1920 vote
| Warren G. Harding ✓Republican | 70.9% | 634,674 |
|---|---|---|
| James M. CoxDemocratic | 25.5% | 227,804 |
| OtherAll other candidates | 3.6% | 32,487 |
1920presidential margin
D+60R+60
99 counties, each filled by 1920 D-vs-R margin. Hover any county for its result.
Iowa cast 13 electoral votes this cycle.
County-level results (99 counties) — table
| County | Winner | Margin |
|---|---|---|
| Adair County, IA | Republican | R+49.9 |
| Adams County, IA | Republican | R+25.8 |
| Allamakee County, IA | Republican | R+47.4 |
| Appanoose County, IA | Republican | R+35.2 |
| Audubon County, IA | Republican | R+35.6 |
| Benton County, IA | Republican | R+45.6 |
| Black Hawk County, IA | Republican | R+58.5 |
| Boone County, IA | Republican | R+48.6 |
| Bremer County, IA | Republican | R+74.1 |
| Buchanan County, IA | Republican | R+59.2 |
| Buena Vista County, IA | Republican | R+59.4 |
| Butler County, IA | Republican | R+74.5 |
| Calhoun County, IA | Republican | R+55.4 |
| Carroll County, IA | Republican | R+47.8 |
| Cass County, IA | Republican | R+58.3 |
| Cedar County, IA | Republican | R+58.5 |
| Cerro Gordo County, IA | Republican | R+54.7 |
| Cherokee County, IA | Republican | R+57.0 |
| Chickasaw County, IA | Republican | R+34.8 |
| Clarke County, IA | Republican | R+42.5 |
| Clay County, IA | Republican | R+62.1 |
| Clayton County, IA | Republican | R+56.7 |
| Clinton County, IA | Republican | R+49.0 |
| Crawford County, IA | Republican | R+41.7 |
| Dallas County, IA | Republican | R+43.4 |
| Davis County, IA | Republican | R+13.8 |
| Decatur County, IA | Republican | R+23.3 |
| Delaware County, IA | Republican | R+67.3 |
| Des Moines County, IA | Republican | R+37.2 |
| Dickinson County, IA | Republican | R+61.9 |
| Dubuque County, IA | Republican | R+22.9 |
| Emmet County, IA | Republican | R+53.6 |
| Fayette County, IA | Republican | R+60.6 |
| Floyd County, IA | Republican | R+71.9 |
| Franklin County, IA | Republican | R+74.3 |
| Fremont County, IA | Republican | R+19.7 |
| Greene County, IA | Republican | R+58.8 |
| Grundy County, IA | Republican | R+72.7 |
| Guthrie County, IA | Republican | R+52.0 |
| Hamilton County, IA | Republican | R+67.1 |
| Hancock County, IA | Republican | R+64.6 |
| Hardin County, IA | Republican | R+70.4 |
| Harrison County, IA | Republican | R+27.2 |
| Henry County, IA | Republican | R+45.4 |
| Howard County, IA | Republican | R+34.8 |
| Humboldt County, IA | Republican | R+67.1 |
| Ida County, IA | Republican | R+52.5 |
| Iowa County, IA | Republican | R+41.1 |
| Jackson County, IA | Republican | R+40.1 |
| Jasper County, IA | Republican | R+36.5 |
| Jefferson County, IA | Republican | R+50.9 |
| Johnson County, IA | Republican | R+6.1 |
| Jones County, IA | Republican | R+41.7 |
| Keokuk County, IA | Republican | R+37.3 |
| Kossuth County, IA | Republican | R+55.8 |
| Lee County, IA | Republican | R+34.2 |
| Linn County, IA | Republican | R+47.1 |
| Louisa County, IA | Republican | R+57.2 |
| Lucas County, IA | Republican | R+42.0 |
| Lyon County, IA | Republican | R+65.1 |
| Madison County, IA | Republican | R+39.6 |
| Mahaska County, IA | Republican | R+32.6 |
| Marion County, IA | Republican | R+16.4 |
| Marshall County, IA | Republican | R+60.7 |
| Mills County, IA | Republican | R+39.2 |
| Mitchell County, IA | Republican | R+69.4 |
| Monona County, IA | Republican | R+39.7 |
| Monroe County, IA | Republican | R+32.9 |
| Montgomery County, IA | Republican | R+54.9 |
| Muscatine County, IA | Republican | R+50.4 |
| O'Brien County, IA | Republican | R+54.6 |
| Osceola County, IA | Republican | R+55.4 |
| Page County, IA | Republican | R+55.0 |
| Palo Alto County, IA | Republican | R+44.6 |
| Plymouth County, IA | Republican | R+53.6 |
| Pocahontas County, IA | Republican | R+41.7 |
| Polk County, IA | Republican | R+36.7 |
| Pottawattamie County, IA | Republican | R+32.8 |
| Poweshiek County, IA | Republican | R+45.3 |
| Ringgold County, IA | Republican | R+46.6 |
| Sac County, IA | Republican | R+58.7 |
| Scott County, IA | Republican | R+38.9 |
| Shelby County, IA | Republican | R+41.8 |
| Sioux County, IA | Republican | R+59.6 |
| Story County, IA | Republican | R+63.1 |
| Tama County, IA | Republican | R+41.9 |
| Taylor County, IA | Republican | R+46.9 |
| Union County, IA | Republican | R+32.9 |
| Van Buren County, IA | Republican | R+43.4 |
| Wapello County, IA | Republican | R+39.6 |
| Warren County, IA | Republican | R+43.1 |
| Washington County, IA | Republican | R+43.5 |
| Wayne County, IA | Republican | R+26.6 |
| Webster County, IA | Republican | R+42.4 |
| Winnebago County, IA | Republican | R+76.7 |
| Winneshiek County, IA | Republican | R+54.0 |
| Woodbury County, IA | Republican | R+27.5 |
| Worth County, IA | Republican | R+72.0 |
| Wright County, IA | Republican | R+64.0 |
Nominees: James M. Cox (D) · Warren G. Harding (R)
Iowa's presidential margins
1892–2024, the 1920 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% |
County-by-county results — 99 counties
| County | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| Adair County | R | 1,358 | 4,133 | 5,563 | |
| Adams County | R | 1,670 | 2,845 | 4,557 | |
| Allamakee County | R | 1,833 | 5,192 | 7,090 | |
| Appanoose County | R | 2,952 | 6,382 | 9,743 | |
| Audubon County | R | 1,405 | 2,963 | 4,378 | |
| Benton County | R | 2,343 | 6,539 | 9,207 | |
| Black Hawk County | R | 4,000 | 16,920 | 22,101 | |
| Boone County | R | 2,240 | 7,093 | 9,980 | |
| Bremer County | R | 902 | 6,287 | 7,269 | |
| Buchanan County | R | 1,600 | 6,334 | 7,997 | |
| Buena Vista County | R | 1,204 | 4,927 | 6,270 | |
| Butler County | R | 830 | 5,900 | 6,806 | |
| Calhoun County | R | 1,479 | 5,277 | 6,858 | |
| Carroll County | R | 2,174 | 6,320 | 8,671 | |
| Cass County | R | 1,668 | 6,558 | 8,383 | |
| Cedar County | R | 1,420 | 5,697 | 7,315 | |
| Cerro Gordo County | R | 2,302 | 8,293 | 10,951 | |
| Cherokee County | R | 1,211 | 4,544 | 5,849 | |
| Chickasaw County | R | 2,171 | 4,517 | 6,744 | |
| Clarke County | R | 1,257 | 3,150 | 4,450 | |
| Clay County | R | 1,001 | 4,471 | 5,585 | |
| Clayton County | R | 1,808 | 6,747 | 8,706 | |
| Clinton County | R | 3,153 | 11,746 | 17,536 | |
| Crawford County | R | 2,151 | 5,473 | 7,972 | |
| Dallas County | R | 2,577 | 6,677 | 9,454 | |
| Davis County | R | 2,353 | 3,117 | 5,535 | |
| Decatur County | R | 2,592 | 4,187 | 6,845 | |
| Delaware County | R | 1,111 | 5,880 | 7,088 | |
| Des Moines County | R | 3,449 | 8,287 | 12,997 | |
| Dickinson County | R | 760 | 3,298 | 4,101 | |
| Dubuque County | R | 7,636 | 12,436 | 21,000 | |
| Emmet County | R | 991 | 3,360 | 4,421 | |
| Fayette County | R | 1,941 | 8,265 | 10,444 | |
| Floyd County | R | 933 | 6,106 | 7,197 | |
| Franklin County | R | 601 | 4,397 | 5,109 | |
| Fremont County | R | 2,524 | 3,776 | 6,364 | |
| Greene County | R | 1,303 | 5,102 | 6,460 | |
| Grundy County | R | 714 | 4,662 | 5,432 | |
| Guthrie County | R | 1,647 | 5,338 | 7,099 | |
| Hamilton County | R | 1,126 | 5,924 | 7,148 | |
| Hancock County | R | 725 | 3,617 | 4,474 | |
| Hardin County | R | 1,076 | 6,646 | 7,915 | |
| Harrison County | R | 3,479 | 6,127 | 9,742 | |
| Henry County | R | 1,939 | 5,254 | 7,306 | |
| Howard County | R | 1,717 | 3,601 | 5,418 | |
| Humboldt County | R | 681 | 3,577 | 4,319 | |
| Ida County | R | 1,090 | 3,547 | 4,684 | |
| Iowa County | R | 2,019 | 4,892 | 6,997 | |
| Jackson County | R | 1,954 | 4,763 | 7,005 | |
| Jasper County | R | 3,390 | 7,417 | 11,029 | |
| Jefferson County | R | 1,450 | 4,558 | 6,108 | |
| Johnson County | R | 5,032 | 5,696 | 10,923 | |
| Jones County | R | 2,436 | 5,962 | 8,461 | |
| Keokuk County | R | 2,800 | 6,207 | 9,135 | |
| Kossuth County | R | 1,682 | 6,018 | 7,769 | |
| Lee County | R | 5,177 | 10,763 | 16,323 | |
| Linn County | R | 6,932 | 20,036 | 27,821 | |
| Louisa County | R | 932 | 3,560 | 4,594 | |
| Lucas County | R | 1,463 | 3,775 | 5,506 | |
| Lyon County | R | 729 | 3,633 | 4,459 | |
| Madison County | R | 1,899 | 4,465 | 6,487 | |
| Mahaska County | R | 3,339 | 6,739 | 10,440 | |
| Marion County | R | 3,861 | 5,435 | 9,599 | |
| Marshall County | R | 2,166 | 9,334 | 11,800 | |
| Mills County | R | 1,592 | 3,683 | 5,338 | |
| Mitchell County | R | 773 | 4,476 | 5,332 | |
| Monona County | R | 1,960 | 4,569 | 6,575 | |
| Monroe County | R | 2,081 | 4,500 | 7,352 | |
| Montgomery County | R | 1,404 | 4,980 | 6,510 | |
| Muscatine County | R | 2,293 | 8,115 | 11,544 | |
| O'Brien County | R | 1,468 | 5,137 | 6,714 | |
| Osceola County | R | 754 | 2,717 | 3,541 | |
| Page County | R | 1,931 | 6,949 | 9,131 | |
| Palo Alto County | R | 1,467 | 3,904 | 5,466 | |
| Plymouth County | R | 1,801 | 6,090 | 7,996 | |
| Pocahontas County | R | 1,639 | 4,046 | 5,774 | |
| Polk County | R | 16,281 | 36,073 | 53,986 | |
| Pottawattamie County | R | 6,659 | 13,506 | 20,887 | |
| Poweshiek County | R | 2,125 | 5,806 | 8,130 | |
| Ringgold County | R | 1,327 | 3,702 | 5,095 | |
| Sac County | R | 1,268 | 4,984 | 6,334 | |
| Scott County | R | 5,473 | 16,233 | 27,631 | |
| Shelby County | R | 1,882 | 4,621 | 6,550 | |
| Sioux County | R | 1,510 | 6,068 | 7,653 | |
| Story County | R | 1,909 | 8,713 | 10,784 | |
| Tama County | R | 2,552 | 6,352 | 9,073 | |
| Taylor County | R | 1,757 | 4,997 | 6,901 | |
| Union County | R | 2,228 | 4,466 | 6,805 | |
| Van Buren County | R | 1,682 | 4,321 | 6,086 | |
| Wapello County | R | 4,131 | 9,884 | 14,537 | |
| Warren County | R | 2,066 | 5,323 | 7,549 | |
| Washington County | R | 2,257 | 5,813 | 8,177 | |
| Wayne County | R | 2,434 | 4,234 | 6,773 | |
| Webster County | R | 2,804 | 8,312 | 12,988 | |
| Winnebago County | R | 469 | 3,931 | 4,514 | |
| Winneshiek County | R | 1,933 | 6,684 | 8,797 | |
| Woodbury County | R | 9,815 | 17,603 | 28,362 | |
| Worth County | R | 516 | 3,401 | 4,009 | |
| Wright County | R | 1,205 | 5,739 | 7,082 |
Source. Compiled historical county records — 1920 presidential returns · official county-level results. Real returns — nothing estimated.