County record · fips 06001 · California
AlamedaCA
Democratic ×17 since 1960all 40 elections, 1868–2024
The Long Record
40 elections against the California and national vote
2024 result
D+56.0
won by Democrats
Record since first cycle
23–17
Dem–Rep two-party wins
Voted with the winner
28/40
70% of its elections
Closest election
1948
D+1.3
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 | +150.1 pts | Democrats |
| 1916 | -108.2 pts | Republicans |
| 1872 | -79.0 pts | Republicans |
| 1876 | +79.0 pts | Democrats |
| 1928 | +50.4 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
1,649,473
College (BA+)
52%
Median income
$129,367
2024 dollars
Non-white
73%
Rural
0%
Age 65+
15%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Contra Costa, CA · San Francisco, CA · San Joaquin, CA · Santa Clara, CA · Stanislaus, CA