County record · fips 19165 · Iowa
ShelbyIA
Republican ×15 since 1968all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+43.5
won by Republicans
Record since first cycle
10–30
Dem–Rep two-party wins
Voted with the winner
27/40
68% of its elections
Closest election
1908
R+1.0
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 |
|---|---|---|
| 1920 | -46.2 pts | Republicans |
| 1968 | -41.6 pts | Republicans |
| 1872 | -38.1 pts | Republicans |
| 1912 | +36.7 pts | Democrats |
| 1952 | -33.0 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
11,778
College (BA+)
24%
Median income
$72,738
2024 dollars
Non-white
9%
Rural
60%
Age 65+
23%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Audubon, IA · Cass, IA · Crawford, IA · Harrison, IA · Pottawattamie, IA