Johnson County, Kansas
| Kamala Harris ✓Democratic | 53.4% | 183,451 |
|---|---|---|
| Donald TrumpRepublican | 44.9% | 154,247 |
| Robert F KennedyOther | 1.1% | 3,750 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | −50.5% |
| 1896 | +3.1% |
| 1900 | −4.8% |
| 1904 | −28.5% |
| 1908 | −4.9% |
| 1912 | +22.8% |
| 1916 | +2.0% |
| 1920 | −30.0% |
| 1924 | −38.8% |
| 1928 | −41.4% |
| 1932 | −0.0% |
| 1936 | −15.7% |
| 1940 | −28.2% |
| 1944 | −34.8% |
| 1948 | −22.3% |
| 1952 | −45.1% |
| 1956 | −42.9% |
| 1960 | −32.5% |
| 1964 | −9.3% |
| 1968 | −33.0% |
| 1972 | −50.5% |
| 1976 | −35.2% |
| 1980 | −36.2% |
| 1984 | −45.4% |
| 1988 | −26.5% |
| 1992 | −13.3% |
| 1996 | −22.1% |
| 2000 | −23.4% |
| 2004 | −23.3% |
| 2008 | −9.0% |
| 2012 | −17.4% |
| 2016 | −2.6% |
| 2020 | +8.2% |
| 2024 | +8.5% |
Johnson County anchors the Kansas City suburban corridor and has trended blue across three consecutive presidential cycles, making it a bellwether for college-educated suburban realignment in a traditionally Republican state.
Across the recorded series it reached a Democratic high of 22.8 points in 1912 and a Republican high of 50.5 points in 1892. The 2024 margin was 8.5 points.
A population of 620,631, a 76% non-Hispanic-white share, and a median household income of $109,208 describe the county. The county's voting pattern over the last decade is most similar to that of James City County and Kent County.
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Johnson County, Kansas. Akashic. https://akashic.app/county/20091/. Accessed May 20, 2026. License: CC BY 4.0.