Washington County, Iowa
| Donald Trump ✓Republican | 61.4% | 7,119 |
|---|---|---|
| Kamala HarrisDemocratic | 37.1% | 4,297 |
| Robert F Kennedy Jr.We The People | 0.6% | 72 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | −7.9% |
| 1896 | −11.1% |
| 1900 | −11.6% |
| 1904 | −22.7% |
| 1908 | −10.5% |
| 1912 | +15.4% |
| 1916 | −12.2% |
| 1920 | −43.5% |
| 1924 | −38.0% |
| 1928 | −36.5% |
| 1932 | +7.7% |
| 1936 | −2.6% |
| 1940 | −16.7% |
| 1944 | −21.5% |
| 1948 | −14.5% |
| 1952 | −45.3% |
| 1956 | −31.8% |
| 1960 | −29.0% |
| 1964 | +16.1% |
| 1968 | −27.9% |
| 1972 | −29.7% |
| 1976 | −9.9% |
| 1980 | −14.3% |
| 1984 | −19.7% |
| 1988 | +0.5% |
| 1992 | −2.1% |
| 1996 | +2.8% |
| 2000 | −9.8% |
| 2004 | −12.9% |
| 2008 | −0.7% |
| 2012 | −4.1% |
| 2016 | −20.1% |
| 2020 | −20.5% |
| 2024 | −24.4% |
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 14,873 | 3,682 | 5,578 | 5,606 | 7 |
| 2010 | 15,167 | 3,601 | 5,775 | 5,776 | 15 |
| 2012 | 14,591 | 3,257 | 6,005 | 5,313 | 16 |
| 2014 | 14,782 | 3,142 | 5,884 | 5,709 | 47 |
| 2016 | 15,160 | 3,203 | 6,442 | 5,416 | 99 |
| 2018 | 15,049 | 3,253 | 6,046 | 5,623 | 127 |
| 2020 | 15,594 | 3,804 | 6,297 | 5,352 | 141 |
| 2022 | 15,582 | 3,477 | 6,697 | 5,266 | 142 |
| 2024 | 15,576 | 3,307 | 6,807 | 5,325 | 137 |
Washington County sits in southeast Iowa along the English River, its electorate anchored by small-town and agricultural communities that have shifted steadily rightward over the past two decades, with the 2024 presidential margin reaching R+24.4.
Across the recorded series it reached a Democratic high of 16.1 points in 1964 and a Republican high of 45.3 points in 1952. Between 2020 and 2024 the county moved 3.9 points toward the Republican candidate; the 2024 margin was 24.4 points.
A population of 22,561, a 89% non-Hispanic-white share, and a median household income of $75,647 describe the county. The county's voting pattern over the last decade is most similar to that of Lyon County and Grant County.
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Washington County, Iowa. Akashic. https://akashic.app/county/19183/. Accessed May 20, 2026. License: CC BY 4.0.