Cerro Gordo County, Iowa
| Donald Trump ✓Republican | 54.9% | 12,627 |
|---|---|---|
| Kamala HarrisDemocratic | 43.2% | 9,955 |
| Robert F Kennedy Jr.We The People | 1.0% | 229 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | −26.2% |
| 1896 | −35.9% |
| 1900 | −42.1% |
| 1904 | −54.5% |
| 1908 | −31.5% |
| 1912 | +7.8% |
| 1916 | −21.1% |
| 1920 | −54.7% |
| 1924 | −49.4% |
| 1928 | −32.1% |
| 1932 | +8.8% |
| 1936 | +11.8% |
| 1940 | +5.4% |
| 1944 | +4.5% |
| 1948 | +9.6% |
| 1952 | −22.5% |
| 1956 | −14.1% |
| 1960 | −12.2% |
| 1964 | +25.0% |
| 1968 | −10.4% |
| 1972 | −11.0% |
| 1976 | +2.6% |
| 1980 | −8.0% |
| 1984 | +1.6% |
| 1988 | +15.6% |
| 1992 | +13.0% |
| 1996 | +21.3% |
| 2000 | +12.6% |
| 2004 | +9.8% |
| 2008 | +20.8% |
| 2012 | +13.4% |
| 2016 | −7.6% |
| 2020 | −6.3% |
| 2024 | −11.6% |
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 32,588 | 10,965 | 8,410 | 13,206 | 7 |
| 2010 | 32,252 | 10,362 | 8,547 | 13,328 | 15 |
| 2012 | 32,838 | 10,377 | 8,594 | 13,850 | 17 |
| 2014 | 32,246 | 9,859 | 8,485 | 13,861 | 41 |
| 2016 | 32,040 | 9,629 | 8,807 | 13,524 | 80 |
| 2018 | 31,482 | 9,147 | 8,483 | 13,728 | 124 |
| 2020 | 31,781 | 9,840 | 9,047 | 12,685 | 209 |
| 2022 | 31,473 | 9,295 | 9,559 | 12,412 | 207 |
| 2024 | 31,512 | 8,628 | 10,302 | 12,316 | 266 |
Cerro Gordo, anchored by Mason City, was a Democratic-leaning industrial county as recently as the 2000s but posted an R+11.6 margin in 2024, reflecting a broader working-class realignment across Iowa's small manufacturing cities.
Across the recorded series it reached a Democratic high of 25.0 points in 1964 and a Republican high of 54.7 points in 1920. Between 2020 and 2024 the county moved 5.3 points toward the Republican candidate; the 2024 margin was 11.6 points.
A population of 42,632, a 88% non-Hispanic-white share, and a median household income of $68,189 describe the county. The county's voting pattern over the last decade is most similar to that of Des Moines County and Mower County.
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Cerro Gordo County, Iowa. Akashic. https://akashic.app/county/19033/. Accessed May 20, 2026. License: CC BY 4.0.