County record · fips 19127 · Iowa
MarshallIA
Republican ×3 since 2016all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+15.8
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
2004
R+0.6
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 |
|---|---|---|
| 1912 | +73.4 pts | Democrats |
| 1916 | -66.7 pts | Republicans |
| 1932 | +45.1 pts | Democrats |
| 1964 | +42.2 pts | Democrats |
| 1968 | -40.9 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
40,114
College (BA+)
23%
Median income
$73,315
2024 dollars
Non-white
34%
Rural
32%
Age 65+
18%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Grundy, IA · Hardin, IA · Jasper, IA · Story, IA · Tama, IA