County record · fips 19105 · Iowa
JonesIA
Republican ×3 since 2016all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+26.7
won by Republicans
Record since first cycle
12–28
Dem–Rep two-party wins
Voted with the winner
29/40
73% of its elections
Closest election
1892
D+0.4
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 |
|---|---|---|
| 1964 | +44.3 pts | Democrats |
| 1932 | +43.4 pts | Democrats |
| 1968 | -41.0 pts | Republicans |
| 1916 | -33.2 pts | Republicans |
| 1952 | -29.4 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
20,896
College (BA+)
22%
Median income
$73,531
2024 dollars
Non-white
8%
Rural
74%
Age 65+
21%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Cedar, IA · Clinton, IA · Delaware, IA · Dubuque, IA · Jackson, IA · Linn, IA