County record · fips 06095 · California
SolanoCA
Democratic ×10 since 1988all 40 elections, 1868–2024
The Long Record
40 elections against the California and national vote
2024 result
D+23.7
won by Democrats
Record since first cycle
23–17
Dem–Rep two-party wins
Voted with the winner
30/40
75% of its elections
Closest election
1880
R+0.1
this countyCalifornianational (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 | +118.9 pts | Democrats |
| 1872 | -96.1 pts | Republicans |
| 1876 | +94.0 pts | Democrats |
| 1916 | -74.7 pts | Republicans |
| 1920 | -64.4 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
451,918
College (BA+)
29%
Median income
$100,401
2024 dollars
Non-white
67%
Rural
4%
Age 65+
17%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Contra Costa, CA · Napa, CA · Sacramento, CA · Sonoma, CA · Yolo, CA