County record · fips 20091 · Kansas
JohnsonKS
Democratic ×2 since 2020all 40 elections, 1868–2024
The Long Record
40 elections against the Kansas and national vote
2024 result
D+8.6
won by Democrats
Record since first cycle
4–36
Dem–Rep two-party wins
Voted with the winner
25/40
63% of its elections
Closest election
1932
D+0.0
this countyKansasnational (official)dot colour = two-party winner · hollow = tie or unknown total · click a dot to open that election
The Biggest Swings
Cycle-over-cycle change in the two-party margin, in points
| Election | Swing | Toward |
|---|---|---|
| 1896 | +90.5 pts | Democrats |
| 1892 | -79.8 pts | Republicans |
| 1912 | +42.6 pts | Democrats |
| 1932 | +41.6 pts | Democrats |
| 1916 | -35.5 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
620,631
College (BA+)
58%
Median income
$109,208
2024 dollars
Non-white
24%
Rural
4%
Age 65+
16%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Douglas, KS · Leavenworth, KS · Miami, KS · Wyandotte, KS · Cass, MO · Jackson, MO