County record · fips 29047 · Missouri
ClayMO
Republican ×6 since 2004all 40 elections, 1868–2024
The Long Record
40 elections against the Missouri and national vote
2024 result
R+5.7
won by Republicans
Record since first cycle
26–14
Dem–Rep two-party wins
Voted with the winner
23/40
57% of its elections
Closest election
2000
D+0.0
this countyMissourinational (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 |
|---|---|---|
| 1872 | +57.9 pts | Democrats |
| 1932 | +50.3 pts | Democrats |
| 1976 | +42.1 pts | Democrats |
| 1928 | -34.0 pts | Republicans |
| 1972 | -33.2 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
258,122
College (BA+)
37%
Median income
$88,468
2024 dollars
Non-white
23%
Rural
8%
Age 65+
15%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Wyandotte, KS · Clinton, MO · Jackson, MO · Platte, MO · Ray, MO