County record · fips 17167 · Illinois
SangamonIL
Republican ×4 since 2012all 40 elections, 1868–2024
The Long Record
40 elections against the Illinois and national vote
2024 result
R+5.1
won by Republicans
Record since first cycle
12–28
Dem–Rep two-party wins
Voted with the winner
27/40
68% of its elections
Closest election
1992
D+0.5
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 |
|---|---|---|
| 1876 | +106.0 pts | Democrats |
| 1872 | -101.7 pts | Republicans |
| 1916 | -43.2 pts | Republicans |
| 1912 | +41.0 pts | Democrats |
| 1932 | +30.5 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
194,947
College (BA+)
37%
Median income
$75,357
2024 dollars
Non-white
23%
Rural
19%
Age 65+
19%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Cass, IL · Christian, IL · Logan, IL · Macon, IL · Macoupin, IL · Menard, IL · Montgomery, IL · Morgan, IL