Precinct Information
Precinct Maps in PDF
Below is a list of the precinct maps for San Mateo County.
Last updated November 2019.
Click on the name of an area to view the current precinct map:
- Atherton
- Belmont
- Brisbane
- Burlingame
- Daly City and Colma
- East Palo Alto
- Foster City
- Half Moon Bay
- Hillsborough
- Menlo Park
- Millbrae
- Pacifica
- Portola Valley
- Redwood City
- Redwood City Redwood Shores
- San Bruno
- San Carlos
- San Mateo
- South San Francisco
- Unincorporated Coastside
- Unincorporated La Honda-Pescadero
- Unincorporated Skyline-San Gregorio
- Woodside
- Read more
Precinct Lookup Map
Click to View San Mateo County Precinct Lookup Map
Last updated September 2018
Election Precincts in the Property Map Portal
View the Election Precincts in the Property Maps Portal:
1. Click Property Maps Portal and make sure you are on the screen below:
Download Precinct Information
Precinct boundary Information is available to download in Shapefile, Geodatabase, AutoCAD, Google DML and GeoJSON formats.
Click GIS Download Data to link to the page and navigate to the Jurisdictional Boundaries section.
Political Districts
Political maps within San Mateo County:
Congressional Map
Senate Map
Assembly Map
Supervisorial District Boundaries Map
Redistricting in California
California Citizens Redistricting Commission
The California Constitution (Article 21, Section 1) requires an adjustment (“reapportionment”) of election districts every ten years, in the year following the federal census. The intent of this requirement is to “reapportion” the number of people within political districts of the state to reflect changes in population.