ZIP code 94403
San Mateo County, including San Mateo
Search for an addressReport created October 27, 2026 at www.firezones.info/zip/94403
Summary
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Fire hazard severity zones
Share of the land in each CAL FIRE hazard class
10% Moderate
Most of the Moderate land is in the Local Responsibility Area, where each city or county adopts the zones CAL FIRE recommends.
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Fire history
Share of the land inside a recorded wildfire perimeter
No recorded fires
CAL FIRE has no record of a fire that burned an acre or more here.
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Power line fire risk
Share of the land in the High Fire-Threat District
Not elevated
Outside the CPUC High Fire-Threat District, though a shutoff can still reach homes whose lines run through it.
Land by hazard class
3,705 acres of land in all, <1 in the State Responsibility Area and 3,704 in the Local. State zones are the ones the State Fire Marshal designated, in effect since 1 April 2024. Local zones are CAL FIRE's 2025 recommendation, which each city or county adopts by ordinance and can make stricter. How to read fire zones
Sources
- Fire hazard severity zones
- CAL FIRE Office of the State Fire Marshal
- State map published 27 June 2025, local map 2 February 2026
This site is independent and not affiliated with CAL FIRE or the CPUC, so for an official determination, check with the agency or your city or county. How we read the data