Alameda County, Administrative county in San Francisco Bay Area, United States
The seventh most populous county in California spans 2,127 square kilometers, including urban centers Oakland, Berkeley, and Fremont along San Francisco Bay.
Established in 1853 from portions of Contra Costa and Santa Clara counties, Alameda County moved its administrative center multiple times before settling in Oakland in 1873.
The University of California Berkeley, numerous community colleges, and Oakland's port contribute to the educational and economic development of the San Francisco Bay region.
The East Bay Regional Park District maintains public spaces throughout the county, while BART trains connect residents to San Francisco and neighboring communities.
Two major geological formations, the Hayward Fault and Calaveras Fault, intersect within the county boundaries, shaping its physical landscape and development patterns.
Location: California
Inception: March 25, 1853
Capital city: Oakland
Part of: Oakland–Fremont–Berkeley metropolitan division
Shares border with: Contra Costa County, San Mateo County, San Joaquin County, Stanislaus County, Santa Clara County
Website: https://acgov.org
GPS coordinates: 37.65000,-121.91000
Latest update: May 27, 2025 20:12
San Francisco–Oakland Bay Bridge
42.8 km
Centennial Light
15.4 km
USS Hornet
37.2 km
Danville
20.7 km
Mount Diablo
25.8 km
Oakland Coliseum
28 km
Filoli
40.6 km
California Aqueduct
37 km
San Mateo–Hayward Bridge
30.1 km
People's Park
38.8 km
Eastern span replacement of the San Francisco–Oakland Bay Bridge
43.1 km
California Memorial Stadium
38.8 km
924 Gilman Street
42.8 km
Naval Air Station Alameda
39.1 km
Mission San José
13.1 km
Mission Peak
15.5 km
USS Hornet Museum
37.2 km
Dumbarton Bridge
24.2 km
Carolands
42 km
USS Potomac
36.4 km
Hughes Mining Barge
37.2 km
Marine World/Africa USA
34 km
Altamont Raceway Park
32.1 km
Dunsmuir House
22.8 km
Chabot Space and Science Center
30.3 km
Sather Tower
39.3 km
Tilden Regional Park
39.9 km
Fox Oakland Theatre
36.2 kmReviews
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