County record · fips 17039 · Illinois
De WittIL
Republican ×15 since 1968all 40 elections, 1868–2024
The Long Record
40 elections against the Illinois and national vote
2024 result
R+45.7
won by Republicans
Record since first cycle
6–34
Dem–Rep two-party wins
Voted with the winner
29/40
73% of its elections
Closest election
1884
R+0.2
this countyIllinoisnational (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 |
|---|---|---|
| 1872 | -88.4 pts | Republicans |
| 1876 | +74.6 pts | Democrats |
| 1932 | +51.6 pts | Democrats |
| 1968 | -29.7 pts | Republicans |
| 1964 | +26.5 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
15,373
College (BA+)
23%
Median income
$71,678
2024 dollars
Non-white
7%
Rural
53%
Age 65+
21%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.