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FEMA Flood Zone Information
In 2001, the Federal Emergency Management Agency finalized a Flood Insurance Study and Flood Insurance Rate Map that placed certain neighborhoods in San Mateo into a Special Flood Hazard Area.

On October 16, 2012, the City experienced a flood map update called a Physical Map Revision (PMR). This map change is a result of the completion of the Levee Project - a flood protection improvement project that resulted in approximately 8,000 homes being removed from the FEMA "high risk" flood zone.

In this section of our website you can learn more about the history of the Flood Zone in San Mateo, receive answers to Frequently Asked Questions, and access resources that will help you better understand your flood status.

Remaining in "High Risk" Area?
North Shoreview and Parts of North Central. View the June, 2014 North Shoreview or North Central presentations to understand the history of past projects and what still needs to be accomplished to pull these two neighborhoods out of the "high risk" zone.  Read the 2012 newsletter that shares our future goals for increasing flood protection for properties north of San Mateo Creek, and tips for lowering your premium.

Going from “High Risk” to “Low Risk” Zone?
South Shoreview, Parkside, Sunnybrae, 19th Avenue Park, Areas neighboring the Marina Lagoon

Entering "High Risk" Area for First Time?
1.) Small Pocket in San Mateo Village  2.) Small Area 20th to 25th & Railroad to Palm
As part of the City’s efforts to update its flood zone maps, the City was required to perform a study of properties that may be susceptible to creek flooding in a 100 year storm. From this recent study, we learned that we have approximately 250 properties in two small areas of our City that are susceptible to creek flooding. Learn more

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More Information
For questions related to this information or any FEMA related topic, please contact Kevin Buchanan in the San Mateo Public Works Department at  or (650) 522-7334.

San Mateo City Hall – 330 West 20th Avenue, San Mateo, CA 94403

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