San Mateo County Flood Maps

Search for San Mateo County CA flood maps. Flood maps include information on flood zones, flood hazards, flood insurance rates, FEMA flood plans, topography, soil composition, drainage patterns, and more.


Assessors in San Mateo County California are charged with determining the value of taxable property within a county or local area. These property value assessments are used to levy property taxes. In addition to tax assessment, assessors maintain detailed county and local maps that show parcel boundaries and buildings, including flood maps. These San Mateo County flood maps show flood zones, flood damage, topography, and drainage patterns, which can impact property values. San Mateo County Assessors may make flood maps available on their websites.

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


Building Departments in San Mateo County California ensure the construction of safe buildings by creating and enforcing building codes. As part of this process, San Mateo County Building Departments use flood maps to establish standards for building construction and resistance to natural disasters. Many maintain and evaluate flood maps, which include information on San Mateo County flood zones, flood hazards, topography, soil composition, and flood drainage patterns. These maps may also include information on building codes and regulations related to flooding. These flood maps may be available online through the Building Department.

Atherton Building Department Atherton CA 91 Ashfield Road 94027 650-752-0560

Belmont Permits Belmont CA 1 Twin Pines Lane 94002 650-595-7416

Burlingame Zoning Burlingame CA 501 Primrose Road 94010 650-558-7250

Colma Building Department, Planning, Zoning and Permits Colma CA 1188 El Camino Real 94014 650-757-8888

Daly City Zoning Daly CA 333 90th Street 94015 650-991-8033

East Palo Alto Building Department East Palo Alto CA 1960 Tate Street 94303 650-853-3189

Half Moon Bay Planning Department Half Moon Bay CA 501 Main Street 94019 650-726-8250

Hillsborough Town Building Department and Planning Hillsborough CA 1600 Floribunda Avenue 94010 650-375-7411

Menlo Park Building Department Menlo Park CA 701 Laurel Street 94025 650-330-6704

Menlo Park Zoning Menlo Park CA 701 Laurel Street 94025 650-330-6702

Menlo Permits Menlo Park CA 801 Laurel Street 94025 650-858-3383

Millbrae Zoning Millbrae CA 621 Magnolia Avenue 94030 650-259-2341

Pacifica Planning Department Pacifica CA 1800 Francisco Boulevard 94044 650-738-7341

S San Francisco Building Department South San Francisco CA 315 Maple Avenue 94080 650-829-6670

San Bruno Zoning San Bruno CA 567 El Camino Real 94066 650-616-7074

San Carlos Building Department San Carlos CA 600 Elm Street 94070 650-802-4261

San Carlos Zoning San Carlos CA 600 Elm Street 94070 650-802-4263

San Mateo County Planning Department San Mateo CA 225 37th Avenue 94403 650-573-2398

San Mateo Planning Department Redwood CA # 2, 455 County Ctr 94063 650-363-4161

San Mateo Planning Department San Mateo CA 330 West 20th Avenue 94403 650-522-7359

San Mateo Zoning San Mateo CA 330 W 20th Ave 94403 650-522-7212


Clerks in San Mateo County California keep public records for a county or local government, including a number of different types of documents. As part of their duties, Clerks maintain detailed maps, including San Mateo County flood maps. These maps contain flood zone information, flood hazards, topography, rivers, lakes, and other bodies of water, as well as other flood-related information. Clerks may also keep San Mateo County historical flood maps. These flood maps may be available through the Clerk's 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


Emergency Services in San Mateo County California manage emergency preparations, responses, and recovery at different levels of government. They may handle natural disasters, severe weather incidents, and a number of other emergency situations. As part of their responsibility for preparedness, Emergency Services departments often maintain San Mateo County flood maps, including flood zones, flood insurance rates, FEMA flood information, and flood hazards. The maps also show water flow and drainage patterns, and may contain emergency flood response information. San Mateo County flood maps may be available online through Emergency Services departments.

California Emergency Services Redwood CA 650 Bair Island Road 94063 650-701-0739

Homeless Veterans Emergency Housing Facilities East Palo Alto CA 526 Sacramento Street 94303 650-324-3057

San Jose County Emergency Services Menlo Park CA 795 Willow Road 94025 650-324-1097


Archives in San Mateo County California collect and store documents and other records that have historic value. Most archives also contain local San Mateo County maps, including flood maps. These flood maps include San Mateo County flood zones, topography, and soil composition. They may also show drainage patterns and flood hazards. Archives may also have historical flood maps that show major floods from the past as well as San Mateo County flood plan improvements. Many archives are housed within libraries, and archives may provide online access to their flood map collections.

East Palo Alto Sheriff's Records Archive East Palo Alto CA 218 Demeter Street 94303 650-363-4312

San Bruno National Archive San Bruno CA 1000 Commodore Drive 94066 650-238-3500

San Mateo County Records Archive Redwood CA 400 County Center 94063 650-363-4711

San Mateo County Sheriff's Records Archive Redwood CA 1580 Maple Street 94063 650-363-4358

San Mateo Police Records Archive San Mateo CA 2000 South Delaware Street 94403 650-522-7700


Recorders of Deeds in San Mateo County California ensure the accuracy of property and land records by maintaining real estate ownership documents. In addition to property records, Recorders of Deeds also have detailed county and local maps that show property lines and building information, including flood maps. These flood maps show flood zones, topography, soil composition, and flood hazards, as well as other information related to San Mateo County floods. San Mateo County Recorders of Deeds may make flood maps available on their websites.

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