Alameda County Flag

Alameda County

State:
California
County Seat:
Oakland

Alameda County's estimated 2026 population is 1,636,636 with a growth rate of 0% in the past year according to the most recent United States census data. Alameda County is the 7th largest county in California. The 2010 population was 1,512,997 and has seen a growth of 8.17% since that time.

1,636,636
Total Population
2,221
Population Density (mi²)
7
Population Rank (State)
6 0%
Annual Population Growth

Alameda County Population

Demographics

Economics and Income Statistics