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San Mateo, California

Located in San Mateo County, California, San Mateo was established in 1863. San Mateo sits on the SF Peninsula between San Francisco and Silicon Valley. Home to many tech workers and companies in the Silicon Valley ecosystem.
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Founded 1863 | Population 105,000 | Peak 105,000 (2024) | County San Mateo County

Top 10 Most Important Events for San Mateo, California

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1863 Founded: Peninsula community between SF and San Jose.
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1929 San Mateo Bridge: Bay bridge connects to East Bay.
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1942 Military Presence: Military installations became a major part of San Mateo's identity and economy.
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2000 Tech Economy: Silicon Valley wealth transforms city.
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Latest News in San Mateo

Apr 11, 2026
Sexual Assault Probe and Staff Revolt Threaten to End Congressman’s California Gubernatorial Bid
Rep. Eric Swalwell’s once-promising campaign for California governor has unraveled with breathtaking speed. In little more than …
Apr 10, 2026
Pattern of Deaths and Disappearances Among U.S. Scientists Sparks Calls for Federal Scrutiny
The quiet death of a veteran NASA Jet Propulsion Laboratory scientist in 2023 has resurfaced amid a string of unexplained fataliti…
Mar 22, 2026
Parolee with Prior Double-Murder Conviction Sentenced to Life Without Parole in Killing of South Los Angeles Woman
LOS ANGELES—A man previously convicted of two murders in 1998 was sentenced to life in prison without the possibility of parole …
Mar 16, 2026
Study: Cannabis Ineffective for Most Mental Disorders
A major review of past studies has delivered a clear verdict on the role of cannabis-based medicines in treating mental health and…
Mar 16, 2026
Investigator Exposes $170M Fraud in California
Investigator Nick Shirley has brought to light a massive $170 million fraud scheme operating within California, representing a sig…
Mar 15, 2026
NYPD Captain Arrested for Assaulting Alleged Child Predator
NYPD Captain Kai Bowen is now facing serious legal repercussions following an off-duty incident that escalated into violence. Repo…

Complete Historical Timeline

1863 Culture
Founded
1929 Transport
San Mateo Bridge
1942 Government
Military Presence
2000 Business
Tech Economy

Did You Know?

1
San Mateo sits on the SF Peninsula between San Francisco and Silicon Valley.
2
Home to many tech workers and companies in the Silicon Valley ecosystem.
3
San Mateo County is one of the wealthiest counties in America.
4
San Mateo was founded in 1863.
5
San Mateo has a population of approximately 105,000.

Famous People from San Mateo, California

TB
Tom Brady
American Football Player · Born Aug 3, 1977 · Age 48
BB
Barry Bostwick
Actor, Singer · Born Feb 24, 1945 · Age 81
DH
Dennis Haysbert
Actor, Voice Actor · Born Jun 2, 1954 · Age 71
KC
Keith Carradine
Screenwriter, Actor · Born Aug 8, 1949 · Age 76
DV
Diane Varsi
Actor, Ballet Dancer · Born Feb 23, 1938 · Died Nov 19, 1992 (age 54)

Other Cities in California

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LA
Los Angeles
Pop. 3,898,747
SD
San Diego
Pop. 1,386,932
SJ
San Jose
Pop. 1,013,240
SF
San Francisco
Pop. 873,965
F
Fresno
Pop. 542,107
S
Sacramento
Pop. 524,943
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