The Alameda County map shows the geographic location, major cities, highways, roads, rivers, parks, airports, and neighboring counties of Alameda County, California. Located in the eastern part of the San Francisco Bay Area, the county includes important cities such as Oakland, Berkeley, Fremont, Hayward, Alameda, San Leandro, Livermore, Pleasanton, Dublin, and Newark. The map highlights Interstate highways including I-580, I-680, and I-880, along with major U.S. and state roads connecting communities throughout the county.
The map also identifies San Francisco Bay, Lake Del Valle, San Antonio Reservoir, regional parks, and Oakland San Francisco Bay Airport. Neighboring counties shown on the map include Contra Costa, San Joaquin, Santa Clara, San Mateo, and San Francisco. This detailed map is useful for understanding Alameda County's transportation network and geographic surroundings.
| Fact | Details |
|---|---|
| Official Name | Alameda County |
| State | California |
| Country | United States |
| Founded | 1853 |
| Incorporated | 1853 |
| Population | 1,636,630 (2025 estimate) |
| County | Oakland |
| Area | 813 sq mi total; 737.46 sq mi land |
| Time Zone | Pacific Time Zone (PT) |
| ZIP Codes | 94501–94710, 94712, 94801–94808, and others |
| Area Code | 510, 925, 341 |
| Known For | San Francisco Bay Area cities, technology, universities, parks, and wine country |
| Major Airport | Oakland San Francisco Bay Airport (OAK) |
| Climate | Mediterranean; mild near the Bay, warmer inland |
| Nickname | East Bay |
| Major Highways | I-80, I-580, I-680, I-880, CA-13, CA-24, CA-84, CA-92 |
| Nearby Border | Contra Costa, San Joaquin, Santa Clara, San Mateo, and San Francisco counties |
| Major Attractions | Lake Merritt, Oakland Zoo, Chabot Space & Science Center, Redwood Regional Park, Lake Del Valle, Livermore Valley wineries |