San Mateo County, California
Genealogy Trails History Group
Genealogy and History
Volunteers Dedicated to Free Genealogy

Welcome to San Mateo County, California Genealogy Trails!

Our goal is to help you track your ancestors through time by transcribing genealogical and historical data
and placing it online for the free use of all researchers

This  County Website
is available for adoption.


If you have a love for history, a desire to help others, and basic web-authoring skills, consider joining us!
Get the details on our
Volunteer Page.
[A desire to transcribe data and knowledge of how to make a basic webpage is required.]

If hosting isn't for you, we can use your help in other ways.
More information can be found on the
Volunteer Page.


We regret that we are unable to
perform personal research.

If you would like to offer help to others for
San Mateo County, please let us know.



 San Mateo County, California
The county was named for the Arroyo de San Matheo, a stream flowing into San Francisco Bay. 
The county is in the San Francisco-Oakland metro area.
San Mateo County was formed from parts of San Francisco County and Santa Cruz County in 1856.

 pigeon point
Pigeon Point 


Atherton - Belmont - Brisbane - Burlingame - Colma - Daly City - East Palo Alto - El Granada
Emerald Lake Hills - Foster City - Half Moon Bay - Highlands - Baywood Park - Hillsborough - La Honda 
Loma Mar - Menlo Park  -Millbrae  - Miramar - Montara - Moss Beach - North Fair Oaks - Pacifica
Palo Alto - Pescadero - Portola Valley - Princeton-by-the-Sea - Redwood City - San Bruno - San Carlos
San Francisco - San Gregorio - San Mateo - Sky Londa - South San Francisco - West Menlo Park - Woodside

County Seat: Redwood City

Year Organized: 1856
Square Miles: 744


Check your Attics!
Dust off your family scrapbooks!
We're looking for DATA for this site!!!

If you are interested in adding your families' information to this website,
Email Us.
We'll be happy to help your families' obituaries, news items and other historical data find a home here
at California Genealogy Trails, where it will remain free for all to view.

Online Records

Biographies Marriage Index
Birth Index Marriage Notices
Birth Notices Military
Books Missions
Burial Index Museums
Cemeteries News/Brevities
Census Data Newspapers
Churches Obituaries
County History Photographs
Crime Pioneers
Death Index Postcards
Directories Research Help
Disasters Schools
Divorce Index Societies
FAQs Stories
Historical Landmarks Tax Lists
Libraries Towns
Maps Voter Lists
Website Updates:
July 2017 - Peltier Obits added
Sept 2016 - Now mobile friendly!
Many news articles, obits, and other notices added. Bios, Societies, Museums, and much more added



Submit an Obituary to Us

for any of our county sites.


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-- it could start a whole new branch of the family!
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Surrounding Counties
| San Francisco | Alameda | Santa Clara | Santa Cruz |

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All data on this website is Copyright by Genealogy Trails.
Full rights reserved for original submitters.