County record · fips 19115 · Iowa
LouisaIA
Republican ×3 since 2016all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+41.5
won by Republicans
Record since first cycle
9–31
Dem–Rep two-party wins
Voted with the winner
28/40
70% of its elections
Closest election
2012
D+0.7
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 | +55.0 pts | Democrats |
| 1968 | -39.0 pts | Republicans |
| 1964 | +38.8 pts | Democrats |
| 2016 | -30.8 pts | Republicans |
| 1920 | -30.6 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
10,678
College (BA+)
17%
Median income
$77,354
2024 dollars
Non-white
23%
Rural
100%
Age 65+
20%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Mercer, IL · Des Moines, IA · Henry, IA · Johnson, IA · Muscatine, IA · Washington, IA