County record · fips 19027 · Iowa
CarrollIA
Republican ×4 since 2012all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+42.5
won by Republicans
Record since first cycle
21–19
Dem–Rep two-party wins
Voted with the winner
28/40
70% of its elections
Closest election
1944
R+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 |
|---|---|---|
| 1916 | -62.8 pts | Republicans |
| 1876 | +54.1 pts | Democrats |
| 1928 | +49.5 pts | Democrats |
| 1952 | -46.7 pts | Republicans |
| 1968 | -43.1 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
20,594
College (BA+)
24%
Median income
$72,930
2024 dollars
Non-white
8%
Rural
51%
Age 65+
21%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Audubon, IA · Calhoun, IA · Crawford, IA · Greene, IA · Guthrie, IA · Sac, IA