County record · fips 19049 · Iowa
DallasIA
Republican ×7 since 2000all 40 elections, 1868–2024
The Long Record
40 elections against the Iowa and national vote
2024 result
R+4.8
won by Republicans
Record since first cycle
10–30
Dem–Rep two-party wins
Voted with the winner
29/40
73% of its elections
Closest election
1940
D+0.5
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 |
|---|---|---|
| 1884 | +50.3 pts | Democrats |
| 1932 | +44.2 pts | Democrats |
| 1964 | +40.8 pts | Democrats |
| 1968 | -37.4 pts | Republicans |
| 1920 | -36.8 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
107,968
College (BA+)
51%
Median income
$102,379
2024 dollars
Non-white
19%
Rural
21%
Age 65+
13%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Boone, IA · Greene, IA · Guthrie, IA · Madison, IA · Polk, IA