County record · fips 17201 · Illinois
WinnebagoIL
Democratic ×5 since 2008all 40 elections, 1868–2024
The Long Record
40 elections against the Illinois and national vote
2024 result
D+0.6
won by Democrats
Record since first cycle
9–31
Dem–Rep two-party wins
Voted with the winner
28/40
70% of its elections
Closest election
2016
D+0.1
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 |
|---|---|---|
| 1912 | +55.5 pts | Democrats |
| 1876 | +50.4 pts | Democrats |
| 1932 | +42.3 pts | Democrats |
| 1916 | -35.8 pts | Republicans |
| 1872 | -33.2 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
283,292
College (BA+)
25%
Median income
$65,837
2024 dollars
Non-white
36%
Rural
10%
Age 65+
19%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Boone, IL · Ogle, IL · Stephenson, IL · Green, WI · Rock, WI