San Mateo County , California

San Mateo County: County in California, United States

San Mateo County locator map
Location of San Mateo County on California map.

About

San Mateo County is a county located in the U.S. state of California. As of the 2010 census, the population was 718,451 and a population density of 374 people per km². After 10 years in 2020 county had an estimated population of 758,308 inhabitants. Its county seat is Redwood City. The county was created 165 years ago in 1855.

Burlingame Library image
Burlingame Library
Burlingame Library image

Geography

San Mateo County is located at 37°26'10"N 122°21'20"W (37.4362100, -122.3556600). It has 2 neighbors: Alameda County and Santa Clara County.

San Mateo County map

The largest city of San Mateo County is Daly City with a population of 106,280. Other cities include, San Mateo population 102,398, Redwood City population 85,925, South San Francisco population 66,558 and San Bruno population 44,051. See all San Mateo County cities & populated places.

Weather

San Mateo County forecast: Rain showers likely. Cloudy, with a low around 56. more

San Mateo County Quick Facts

Population : 758,308 (2020)
Country : United States of America
State : California (United States)
Twitter username : sanmateoco
Area : 1919 km2
Water as percent of area : 39.48%
Land as percent of area : 60.52%
Named for : Matthew the Apostle
Altitude : 1,601 feet / 488 meters
Capital : Redwood City
Establishment : January 01, 1856
Time Zone : UTC−08:00
Local time : 19:50:21 (21st October 2021)
Density : 395 Pop. per km² as of 2020
Population growth : 5.26% (2010-2020)
Weather : 56℉ Rain Showers Likely 7-days weather

San Mateo County has 2 neighbours.

  • Redwood City

Demographics

The population of San Mateo County increased by 5.26% in 10 years.

Year Population % Change Method
2010 718,451 - census
2011 728,344 1.36% estimation process
2012 739,224 1.47% estimation process
2013 748,661 1.26% estimation process
2014 757,204 1.13% estimation process
2015 765,055 1.03% estimation process
2016 767,906 0.37% estimation process
2017 768,901 0.13% estimation process
2018 768,681 -0.03% estimation process
2019 766,573 -0.27% estimation process
2020 758,308 -1.09% estimation process

Comitatul San Mateo, Comte de San Mateo, Comté de San Mateo, Condado de San Mateo, Condado han San Mateo, Contea di San Mateo, Hrabstwo San Mateo, Kantono San Mateo, Okrug San Mateo, Quan San Mateo, Quận San Mateo, San Mateo, San Mateo Comitatus, San Mateo Coonty, San Mateo Kun, San Mateo Kūn, San Mateo konderria, San Mateo maakond, San Mateo megye, San Mateo srjan, San-Mateo, mqatʿt san matyw, sana mate'u ka'unti, sanmateo jun, sheng ma diao jun, shhrstan sn matyw kalyfrnya, Округ Сан Матео, Сан Матео, Сан-Матео, Սան Մատեո շրջան, سان ماتیو کاؤنٹی، کیلیفورنیا, سان ماٹیو کاؤنٹی, شهرستان سن ماتئو، کالیفرنیا, مقاطعة سان ماتيو, সান মাতেউ কাউন্টি, サンマテオ郡, 聖馬刁郡

People born in San Mateo County (13)

People born in San Mateo County, including fencer Janice Romary, biotech analyst, biologist, businesswoman, and co-founder of 23andMe Anne Wojcicki, writer Nicholas Guild, you can see a list of people who born in San Mateo County.

  • Jonah Blechman (American actor) he was born in 08/02/1975
  • Aaron Rapoport (American photographer) he was born in 22/05/1954
  • Anna Turner (U.S. radio and record producer) she was born in 01/01/1944
  • J.B. Pritzker (American businessman, philanthropist, and 43rd Governor of Illinois) he was born in 19/01/1965
  • Rich Gordon (American politician) he was born in 03/07/1948
  • Sally Dryer (American actress) she was born in 10/02/1957
  • Danny Barrett (American rugby union player (1990-)) he was born in 23/03/1990
  • Jordy Ranft (American storyboard artist, animator, director, producer, screenwriter, poet, performer and voice actor) he was born in 24/12/1991
  • Emma Chamberlain (American YouTuber, Podcaster and TikToker) she was born in 22/05/2001
  • Danya Taymor (Director Female) she was born in 20/10/1988

Other places with the same name (1)

San Mateo County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in San Mateo County.

City Name Population Title
Daly City 106,280 City in San Mateo County, California, US
San Mateo 102,398 City in San Mateo County, California, United States
Redwood City 85,925 City in California, United States of America
South San Francisco 66,558 City in San Mateo County, California
San Bruno 44,051 City in San Mateo County, California, US
Pacifica 38,013 City in San Mateo County, California, USA
Menlo Park 34,934 City at the eastern edge of San Mateo County, in the San Francisco Bay Area of California
Foster City 33,901 City in San Mateo County, California, United States
San Carlos 29,641 City in San Mateo County, California, USA
Burlingame 29,557 City in the U.
East Palo Alto 29,059 City in San Mateo County, California, United States
Belmont 26,533 Town in Middlesex County, Massachusetts, United States
Millbrae 22,630 City in California
North Fair Oaks 14,687 Census designated place
Half Moon Bay 12,513 City in San Mateo County, California
Hillsborough 11,527 City in California

California Other Counties (more counties)

County Name Population Title
Los Angeles County 9,943,046 County in California, United States of America
Los Angeles 3,970,219 County seat of Los Angeles County, California; second largest city in the United States by population
San Diego County 3,332,427 San Diego County, founded in 1850, is one of 58 counties in the US state of California.
Orange County 3,166,857 County in California, United States
Riverside County 2,489,188 County in California, United States
San Bernardino County 2,189,183 County in California, United States
Santa Clara County 1,907,105 County in California, United States
Alameda County 1,662,323 County in California, United States
Sacramento County 1,559,146 County in California, United States
San Diego 1,422,420 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 1,152,333 County in California, United States
San Jose 1,013,616 County seat of Santa Clara County, California; tenth largest city in the United States by population
Fresno County 1,000,918 County in California, United States
Kern County 901,362
San Francisco County 866,606 County, coextensive with the city of San Francisco, California, United States