County record · fips 55105 · Wisconsin
RockWI
Democratic ×10 since 1988all 40 elections, 1868–2024
The Long Record
40 elections against the Wisconsin and national vote
2024 result
D+7.4
won by Democrats
Record since first cycle
12–28
Dem–Rep two-party wins
Voted with the winner
25/40
63% of its elections
Closest election
1976
R+0.5
this countyWisconsinnational (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 |
|---|---|---|
| 1920 | -46.5 pts | Republicans |
| 1928 | +39.8 pts | Democrats |
| 1964 | +37.7 pts | Democrats |
| 1932 | +27.9 pts | Democrats |
| 1952 | -26.7 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
164,350
College (BA+)
26%
Median income
$75,673
2024 dollars
Non-white
20%
Rural
20%
Age 65+
18%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Boone, IL · Winnebago, IL · Dane, WI · Green, WI · Jefferson, WI · Walworth, WI