Alameda County , California

Alameda County: County in California, United States

Alameda County, CA locator map
Location of Alameda County, CA on California map.
Seal of Alameda County  California seal image
Seal of Alameda County California

About

Alameda County is a county located in the U.S. state of California. As of the 2010 census, the population was 1,510,271 and a population density of 710 people per km². After 9 years in 2019 county had an estimated population of 1,671,329 inhabitants. Its county seat is Oakland. The county was created 168 years ago in 1853.

Alameda County has a total area of 821.24 square miles (2127 km2), of which 817.37 square miles (2116.98 km2) is land and 3.87 square miles (10.02 km2) is water.

Alameda County map

Alameda County, CA Quick Facts

Population : 1,671,329 (2019)
Country : United States of America
State : California
Twitter username : AlamedaCounty
Phone Area Codes : 510, 925
Area : 2127 km2
Water as percent of area : 10.02%
Land as percent of area : 89.98%
Named for : Rancho Arroyo de la Alameda
Altitude : 331 feet / 101 meters
Capital : Oakland
Establishment : March 03, 1853
Time Zone : Pacific Time Zone
Local time : 18:19:56 (22nd April 2021)
Density : 786 Pop. per km² as of 2019
Population growth : 9.64% (2010-2019)

Alameda County, CA has 5 neighbors .

  • Oakland

Population by years

The population of Alameda County increased by 9.64% in 9 years.

Year Population Method
1900 130,197 estimation process
1910 246,131 estimation process
2010 1,510,271 census
2011 1,530,915 estimation process
2012 1,553,764 estimation process
2013 1,579,593 estimation process
2014 1,607,792 estimation process
2015 1,634,538 estimation process
2016 1,650,950 estimation process
2017 1,660,196 estimation process
2018 1,666,756 estimation process
2019 1,671,329 estimation process

Alameda, Alameda Comitatus, Alameda Kun, Alameda Kūn, Alameda konderria, Alameda maakond, Alameda megye, Alameda srjan, Alamedan piirikunta, Alamedos apygarda, Alamida, Comitatul Alameda, Comte d'Alameda, Comte dAlameda, Comté d'Alameda, Comté dAlameda, Condado de Alameda, Condado han Alameda, Contea di Alameda, Hrabstwo Alameda, Kantono Alameda, Okrug Alamida, Quan Alameda, Quận Alameda, a la mi da xian, aelleomida gun, alameda ka'unti, arameda jun, mqatʿt alamyda, shhrstan alamda kalyfrnya, Аламеда, Аламида, Округ Аламида, Ալամեդա շրջան, الامیدا کاؤنٹی، کیلیفورنیا, المیدا کاؤنٹی, شهرستان آلامدا، کالیفرنیا, مقاطعة ألاميدا, আলামেডা কাউন্টি, アラメダ郡, 阿拉米達縣, 앨러미다 군

People born in Alameda County, CA (56)

People born in Alameda County, CA, including actor, producer, director, and screenwriter Vin Diesel, football player and coach Keith Millard, murder victim Meredith Hunter, you can see a list of people who born in Alameda County, CA.

Alameda County, CA Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Alameda County, CA.

City Name Population Title
Oakland 433,031 Port city and county seat of Alameda County, California, United States
Fremont 241,110 City in California
Hayward 159,203 City in Alameda County, California, United States
Berkeley 121,363 City in Alameda County, California, United States
Livermore 90,189 City in Alameda County, California, United States
San Leandro 88,815 City in Alameda County, California, United States
Pleasanton 81,777 City in Alameda County, California
Alameda 77,624 City in Alameda County, California, United States
Union City 74,107 City in California, United States
Dublin 64,826 City in California
Newark 49,149 City in Alameda County, California, United States
Albany 19,696 City in Alameda County, California, United States
Emeryville 12,086 City in the United States state of California
Piedmont 11,135 City in California

California Other Counties (more counties)

County Name Population Title
California 39,512,223 State of the United States of America
Los Angeles County 10,039,107 County in California, United States of America
Los Angeles 3,979,576 County seat of Los Angeles County, California; second largest city in the United States by population
San Diego County 3,338,330 San Diego County, founded in 1850, is one of 58 counties in the US state of California.
Orange County 3,175,692 County in California, United States
Riverside County 2,470,546 County in California, United States
San Bernardino County 2,180,085 County in California, United States
Santa Clara County 1,927,852 County in California, United States
Sacramento County 1,552,058 County in California, United States
San Diego 1,423,851 City in San Diego County, California, United States, eighth largest city in the country by population
Laguna 1,370,232 Former census-designated place
Contra Costa County 1,153,526 County in California, United States
San Jose 1,021,795 County seat of Santa Clara County, California; tenth largest city in the United States by population
Fresno County 999,101 County in California, United States
City and County of San Francisco 883,869 Consolidated city-county in California, United States
San Francisco 881,549 Consolidated city-county in California, United States
Seal of Alameda County  California seal image

Where to next?