This is not a Natural Hazard Disclosure statement. Open state data, explained; flood and dam zones are not covered. Details

Method and sources

This is not a Natural Hazard Disclosure statement.

Sources

• CAL FIRE: Fire Hazard Severity Zones in local responsibility areas (2025) and state responsibility areas (2023); California Fire Perimeters. Creative Commons Attribution.
• California Geological Survey, Seismic Hazards Program: fault, liquefaction and landslide zones. Creative Commons Attribution.
• U.S. Census Bureau: 2024 boundaries, geocoder, American Community Survey 2019-2023 (table B25077).
• Cal OES address locator, used by your browser for the free check.

Coverage

1,618 places in 58 counties. Percentages are our own overlay of simplified state zones on Census boundaries, so treat them as approximate. For one property, use the address check.

What is not covered

Flood and dam inundation zones: we found no open source we could read and reuse. Each result links the official map. Parts of the state have not been evaluated for liquefaction or landslides, and we say so.

Artificial intelligence

AI helped draft explanations from the laws cited. It adds no facts about a property.