County record · fips 19181 · Iowa
WarrenIA
Republican ×4 since 2012all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+21.0
won by Republicans
Record since first cycle
7–33
Dem–Rep two-party wins
Voted with the winner
28/40
70% of its elections
Closest election
1912
D+0.4
this countyIowanational (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 |
|---|---|---|
| 1964 | +47.2 pts | Democrats |
| 1968 | -38.5 pts | Republicans |
| 1932 | +38.0 pts | Democrats |
| 1920 | -37.4 pts | Republicans |
| 1976 | +28.8 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
54,409
College (BA+)
33%
Median income
$94,588
2024 dollars
Non-white
8%
Rural
47%
Age 65+
17%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Clarke, IA · Lucas, IA · Madison, IA · Marion, IA · Polk, IA