County record · fips 19171 · Iowa
TamaIA
Republican ×3 since 2016all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+27.3
won by Republicans
Record since first cycle
16–24
Dem–Rep two-party wins
Voted with the winner
33/40
83% of its elections
Closest election
2000
D+0.1
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 | -43.6 pts | Republicans |
| 1968 | -39.8 pts | Republicans |
| 1912 | +39.2 pts | Democrats |
| 1884 | +35.3 pts | Democrats |
| 1920 | -34.0 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
16,868
College (BA+)
21%
Median income
$70,781
2024 dollars
Non-white
22%
Rural
69%
Age 65+
21%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Benton, IA · Black Hawk, IA · Grundy, IA · Marshall, IA · Poweshiek, IA