County record · fips 19129 · Iowa
MillsIA
Republican ×15 since 1968all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+39.6
won by Republicans
Record since first cycle
4–36
Dem–Rep two-party wins
Voted with the winner
27/40
68% of its elections
Closest election
1964
D+0.8
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 |
|---|---|---|
| 1932 | +45.2 pts | Democrats |
| 1968 | -41.9 pts | Republicans |
| 1920 | -36.4 pts | Republicans |
| 1976 | +36.2 pts | Democrats |
| 1912 | +33.9 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
14,568
College (BA+)
31%
Median income
$90,753
2024 dollars
Non-white
7%
Rural
65%
Age 65+
20%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Fremont, IA · Montgomery, IA · Pottawattamie, IA · Cass, NE · Sarpy, NE