Alameda County Map, California, USA

Written and fact-checked by | Last Updated: December 16, 2025, 14:30 ET

Map of Alameda County - Alameda County is a county located in the U.S. state of California. It's county seat is Oakland. Alameda County Map showing cities, highways, important places and water bodies.

Alameda County Map, California

Map of Alameda County, California, United States

About Alameda County Map, California: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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    • About Alameda County, California

    Alameda County is a county located in the state of California, United States. It is located in the eastern part of the San Francisco Bay Area, and its county seat is Oakland. The county is named after the Spanish word for "poplar grove."

    According to the United States Census Bureau, as of the 2020 census, the population of Alameda County was approximately 1.7 million people, making it the seventh-most populous county in California. The county covers an area of approximately 738 square miles (1,910 km²). Alameda County was established on 1853.

    Alameda County is home to a number of major cities and towns, including Oakland, Berkeley, Fremont, Hayward, and San Leandro. It is known for its diverse population, cultural attractions, and thriving economy. The county is also home to several universities and colleges, including the University of California, Berkeley and California State University, East Bay.

    Facts about Alameda County, California

    CountryUnited States
    StateCalifornia
    RegionSan Francisco Bay Area (East Bay)
    County SeatOakland
    Named AfterSpanish word “Alameda” meaning “tree-lined avenue”
    Established1853
    Organized1853
    Coordinates37.6463° N, 121.8924° W
    Total Area821 sq mi
    Land Area739 sq mi
    Water Area82 sq mi
    Population (2020)1,682,353
    Population RankOne of the most populous counties in California
    Major CityOakland
    Main IndustriesTechnology, Healthcare, Education, Logistics, Biotechnology
    Major AirportOakland International Airport
    Time ZonePacific Time (UTC−08:00)
    Known ForEast Bay cities, UC Berkeley, Port of Oakland, diverse communities
    Websitehttps://www.acgov.org

    Ctities and Towns in Alameda County

    City NameTypePopulation (2020)Pop. DensityAreaIncorporated
    AlamedaCity78,2807,490.9/sq mi (2,892.3/km2)10.45 sq mi (27.1 km2)April 19, 1854
    AlbanyCity20,27111,324.6/sq mi (4,372.4/km2)1.79 sq mi (4.6 km2)September 22, 1908
    BerkeleyCity124,32111,919.6/sq mi (4,602.2/km2)10.43 sq mi (27 km2)April 4, 1878
    DublinCity72,5894,766.2/sq mi (1,840.2/km2)15.23 sq mi (39.4 km2)February 1, 1982
    EmeryvilleCity12,90510,161.4/sq mi (3,923.3/km2)1.27 sq mi (3.3 km2)December 8, 1896
    FremontCity230,5042,943.5/sq mi (1,136.5/km2)78.31 sq mi (202.8 km2)January 23, 1956
    HaywardCity162,9543,556.4/sq mi (1,373.1/km2)45.82 sq mi (118.7 km2)March 11, 1876
    LivermoreCity87,9553,325.3/sq mi (1,283.9/km2)26.45 sq mi (68.5 km2)April 1, 1876
    NewarkCity47,5293,414.4/sq mi (1,318.3/km2)13.92 sq mi (36.1 km2)September 22, 1955
    OaklandCity440,6467,878.5/sq mi (3,041.9/km2)55.93 sq mi (144.9 km2)May 4, 1852
    PiedmontCity11,2706,629.4/sq mi (2,559.6/km2)1.7 sq mi (4.4 km2)January 31, 1907
    PleasantonCity79,8713,308.7/sq mi (1,277.5/km2)24.14 sq mi (62.5 km2)June 18, 1894
    San LeandroCity91,0086,832.4/sq mi (2,638.0/km2)13.32 sq mi (34.5 km2)March 21, 1872
    Union CityCity70,1433,657.1/sq mi (1,412.0/km2)19.18 sq mi (49.7 km2)January 26, 1959

    Places to Visit in Alameda County

    Top places to visit in Alameda includes USS Hornet - Sea, Air and Space, Robert W. Crown Memorial State, Doug Siden Visitor Center at, Alameda Beach, Washington Park, Marina Village Yacht Harbor, Alameda Point Antiques Faire 1st, Golden Gate Bridge, Alcatraz Island, Trabocco Kitchen and Cocktails, Forbidden Island, Coit Tower, Jean Sweeney Open Space Park, Alameda Dog Park, Battery Spencer, Estuary Park, Alameda.

    Highways in Alameda County

    California State Route 61, Interstate 880.

    Nearest Airports

    Nearest airport of Alameda is Nearest Airports.

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