Sausalito, CA— fire, flood & earthquake hazard information
Sausalito is a city in Marin County in the San Francisco Bay Area, covering about 1.8 square miles. This page summarizes what official government maps show for Sausalito: CAL FIRE fire hazard severity zones, FEMA flood zones, state seismic hazard zones, dam inundation areas, airport noise contours, and air-quality indicators. Figures are the share of Sausalito’s area that falls inside each mapped zone.
View Sausalito on the interactive map → to check any specific address, free.
Wildfire hazard severity zones
CAL FIRE's current Fire Hazard Severity Zone maps do not designate any zones within Sausalito. Individual properties near the boundary can still fall inside a neighboring zone — check the exact address on the map.
FEMA flood zones
14% of Sausalito lies within a FEMA Special Flood Hazard Area (1% annual chance, zones A/AE/AH/AO); 13% is in a coastal high hazard zone (V/VE); 3% is in the 0.2% annual chance (500-year) area. Federally backed mortgages in a Special Flood Hazard Area generally require flood insurance.
| Special Flood Hazard Area (100-yr) | 14% |
| Coastal high hazard (V/VE) | 13% |
| 0.2% annual chance (500-yr) | 3% |
Earthquake faults & seismic zones
The nearest mapped fault, the Serra fault zone, is about 11.8 mi (18.9 km) from the center of Sausalito.
| Nearest mapped fault | Serra fault zone — 11.8 mi (18.9 km) |
Dam inundation, aircraft noise & air quality
annual average fine-particle (PM2.5) concentration across its census tracts is 8.4 μg/m³, and its composite pollution burden ranks around the 46th percentile statewide.
| Annual PM2.5 (tract average) | 8.4 μg/m³ |
| Pollution burden percentile (statewide) | ~46 |
Frequently asked questions
- Is Sausalito in a wildfire hazard severity zone?
- CAL FIRE's current Fire Hazard Severity Zone maps do not designate any zones within Sausalito. Individual properties near the boundary can still fall inside a neighboring zone — check the exact address on the map.
- Is Sausalito in a FEMA flood zone?
- 14% of Sausalito lies within a FEMA Special Flood Hazard Area (1% annual chance, zones A/AE/AH/AO); 13% is in a coastal high hazard zone (V/VE); 3% is in the 0.2% annual chance (500-year) area. Federally backed mortgages in a Special Flood Hazard Area generally require flood insurance.
- What earthquake faults and seismic zones affect Sausalito?
- The nearest mapped fault, the Serra fault zone, is about 11.8 mi (18.9 km) from the center of Sausalito.
- How do I check a specific address in Sausalito?
- Use the free sitelume interactive map at https://sitelume.com — search any Sausalito address to see which mapped zones it falls in, layer by layer.
Nearby in Marin County
Sources: CAL FIRE Fire Hazard Severity Zones; FEMA National Flood Hazard Layer; USGS Quaternary Faults; CGS Seismic Hazard Zones & Alquist-Priolo zones; Cal OES dam inundation maps; county ALUC noise contours; CalEnviroScreen 4.0. Area shares are computed against each place’s Census TIGER boundary (last computed 2026-07-24). Boundaries and zone designations change; always verify with the issuing agency.