Natural Disaster Risk in San Geronimo

Natural Hazard Profile: San Geronimo, California

San Geronimo, in Marin County, is a small community of about 739 situated in the western mountain region near the Pacific Coast. Its Mediterranean climate brings dry summers and mild, wet winters with pronounced drought cycles, and in particular a critical fire season from late summer through fall. These conditions collectively define the natural hazard environment that San Geronimo residents and property owners must navigate.

San Geronimo's overall natural disaster risk is rated 5.6/10 (Moderate) by FEMA's National Risk Index. The risk of coastal inundation tops the local hazard profile, with the area exposed to storm surge, tidal flooding, and wave action during major coastal storm events. Secondary hazards include earthquake and landslide.

Within California, San Geronimo's risk is, near the 5.9/10 state average. Nationally, it ranks above the U.S. national average of 4.5/10. FEMA's analysis of Marin County identifies coastal flood as the foremost hazard, followed by earthquake and landslide. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

San Geronimo's moderate risk profile means that while catastrophic events are less frequent, they do occur. Standard homeowners insurance typically covers many common hazards here, but confirming that coastal flood exposure is adequately protected is a worthwhile step for property owners.