San Mateo County GIS Portal

Search for San Mateo County CA GIS maps. A GIS map search can provide information like county maps, town maps, city maps, local maps, property maps, parcel maps, plat maps, public property, property tax assessments, flood zones, zoning boundaries, geographic information, historical maps, and property tax information.


San Mateo County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate San Mateo County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These San Mateo County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in San Mateo County California. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the San Mateo County Assessor Office website.

San Mateo County Assessor's Office Redwood CA 555 County Center 94063 650-363-4500


San Mateo County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as San Mateo County GIS maps. The GIS maps at a San Mateo County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in San Mateo County California. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the San Mateo County Town and City Hall website.

Atherton City Hall Atherton CA 91 Ashfield Road 94027 650-752-0500

Belmont City Hall Belmont CA 1 Twin Pines Ln 94002 650-595-7413

Brisbane City Hall Brisbane CA 50 Park Place 94005 415-508-2100

Burlingame City Hall Burlingame CA 501 Primrose Road 94010 650-558-7200

Colma Town Hall Colma CA 1198 El Camino Real 94014 650-997-8300

Daly City City Hall Daly CA 333 90th Street 94015 650-991-8000

Half Moon Bay City Hall Half Moon Bay CA 501 Main Street 94019 650-726-8270

Hillsborough Town Hall Hillsborough CA 1600 Floribunda Avenue 94010 650-375-7400

Menlo Park City Hall Menlo Park CA 701 Laurel Street 94025 650-330-6610

Millbrae City Hall Millbrae CA 621 Magnolia Avenue 94030 650-259-2334

Portola Valley Town Hall Portola Valley CA 765 Portola Road 94028 650-851-1700

Redwood City City Hall Redwood CA 1017 Middlefield Rd 94063 650-780-7000

San Bruno City Hall San Bruno CA 567 El Camino Real 94066 650-616-7058

San Carlos City Hall San Carlos CA 600 Elm Street 94070 650-802-4100

San Mateo City Hall San Mateo CA 330 West 20th Avenue 94403 650-522-7999

South San Francisco City Hall South San Francisco CA 400 Grand Avenue 94080 650-877-8500

Woodside Town Hall Woodside CA 2955 Woodside Road 94062 650-851-6790


San Mateo County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including San Mateo County property maps that show boundaries, public property, property divisions, and in some cases, population information in San Mateo County California. They may also include property value assessments and property tax rates. San Mateo County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Belmont City Clerk Belmont CA 1 Twin Pines Lane 94002 650-595-7413

Daly City Clerk Daly CA 333 90th Street 94015 650-991-8078

Millbrae City Clerk Millbrae CA 621 Magnolia Avenue 94030 650-259-2332

Redwood City Clerk Redwood CA 1017 Middlefield Road 94063 650-780-7220

San Mateo City Clerk San Mateo CA 330 West 20th Avenue 94403 650-522-7040

San Mateo County Clerk Redwood CA 555 County Center 94063 650-363-4500


San Mateo County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including San Mateo County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in San Mateo County California. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the San Mateo County Recorder of Deeds website.

San Mateo County Recorder of Deeds Redwood CA 555 County Center 94063 650-363-4500