How do I check a specific address in Marin City?

Use the free sitelume interactive map at https://sitelume.com — search any Marin City address to see which mapped zones it falls in, layer by layer.

Marin City, CA— fire, flood & earthquake hazard information

Marin City is a unincorporated community in Marin County in the San Francisco Bay Area, covering about 0.5 square miles. This page summarizes what official government maps show for Marin City: 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 Marin City’s area that falls inside each mapped zone.

View Marin City on the interactive map → to check any specific address, free.

Wildfire hazard severity zones

Per CAL FIRE's Fire Hazard Severity Zone maps, 80% of Marin City is in a Very High fire hazard severity zone, 4% is in a High zone. The remainder of its area is outside currently designated zones.

Very High severity zone	80%
High severity zone	4%

FEMA flood zones

7% is in the 0.2% annual chance (500-year) area. Federally backed mortgages in a Special Flood Hazard Area generally require flood insurance.

0.2% annual chance (500-yr)

Earthquake faults & seismic zones

The nearest mapped fault, the San Andreas fault zone, is about 9.2 mi (14.7 km) from the center of Marin City.

Nearest mapped fault

San Andreas fault zone — 9.2 mi (14.7 km)

Dam inundation, aircraft noise & air quality

annual average fine-particle (PM2.5) concentration across its census tracts is 8.5 μg/m³, and its composite pollution burden ranks around the 23th percentile statewide.

Annual PM2.5 (tract average)	8.5 μg/m³
Pollution burden percentile (statewide)	~23

Frequently asked questions

Is Marin City in a wildfire hazard severity zone?: Per CAL FIRE's Fire Hazard Severity Zone maps, 80% of Marin City is in a Very High fire hazard severity zone, 4% is in a High zone. The remainder of its area is outside currently designated zones.
Is Marin City in a FEMA flood zone?: 7% 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 Marin City?: The nearest mapped fault, the San Andreas fault zone, is about 9.2 mi (14.7 km) from the center of Marin City.
How do I check a specific address in Marin City?: Use the free sitelume interactive map at https://sitelume.com — search any Marin City 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.