Sausalito, California Flood Zones
Last updated: March 2026
Sausalito faces coastal flooding from San Francisco Bay storm surge and high tides along its waterfront. The city's steep hillside terrain channels stormwater rapidly into low-lying bayfront areas, and sea level rise is increasing the frequency of tidal flooding along the harbor.
Marin County has recorded 3,295 NFIP flood insurance claims since 1978, totaling $51.3M in payouts. Explore the full NFIP claims data by state and county to see how this area compares nationally.
FEMA Region
Region 9
NFIP Policies
7,408
Marin County
Avg. Premium
$1,585/yr
Marin County
FEMA Flood Risk Profile: Marin County
Based on FEMA's National Risk Index, which evaluates flood risk at the county level using historical loss data, exposure, and vulnerability.
Inland Flood Risk
Relatively HighEst. annual loss: $116.0M
Coastal Flood Risk
Very HighEst. annual loss: $19.8M
Source: FEMA National Risk Index, county-level assessment. Individual property risk may vary.
Federal Flood Disaster History: Marin County
Marin County has been included in 10 federal flood-related disaster declarations.
...and 2 earlier declarations since 1964.
These declarations affected communities across Marin County, including Sausalito.
Source: OpenFEMA Disaster Declarations Summaries API. Data sourced February 2026.
NFIP Flood Insurance Claims: Marin County
Properties in Marin County have filed 3,295 NFIP flood insurance claims totaling $51.3M in payouts since 1978. The average claim payout is $16K.
Highest-Claim Years
1982
626 claims - $4.7M
2005
555 claims - $27.9M
1983
498 claims - $4.2M
Claims by Flood Zone
Source: OpenFEMA NFIP Claims API. Data sourced March 2026. See national claims data.
Flood Insurance Coverage: Marin County
An estimated 7% of households in Marin County carry NFIP flood insurance. This county has elevated flood risk with below-average insurance coverage.
Penetration Rate
7%
Claims Ratio
1 in 2
policies have filed a claim
Avg. Claim Payout
$15,558
Derived from FEMA NRI population data and OpenFEMA NFIP policy/claims records.
Repetitive Loss Properties: Marin County
Marin County has 232 properties with multiple flood losses, including 28 severe repetitive loss properties. 1 properties have been mitigated.
Multiple Loss
232
Severe Rep. Loss
28
Mitigated
1
By Flood Zone
Source: OpenFEMA NFIP Multiple Loss Properties. Data sourced March 2026.
Recorded Flood Events: MARIN County
NOAA has recorded 114 flood events in MARIN County since 1996, causing $222.2M in damage.
Costliest Events
Events by Type
Source: NOAA Storm Events Database, 1996-2026. Data sourced March 2026.
Flood Mitigation: Marin County
FEMA has funded mitigation for 54 properties in Marin County, investing $0 in flood risk reduction.
By Action Type
Source: OpenFEMA Hazard Mitigation Assistance. Data sourced March 2026.
What Your Flood Zone Means in Sausalito
Sausalito is primarily at risk from coastal flooding, including hurricane storm surge, tidal flooding, and wave action. Coastal storms can push seawater inland with little warning, and properties in VE (Velocity) zones face the most severe exposure to breaking waves. The most common FEMA flood zone designations in Sausalito are Zone AE, Zone VE, Zone X. FEMA's National Risk Index estimates the county's annual expected loss from inland flooding at over $116.0M. The county is rated "Very High" for coastal flood risk by FEMA's National Risk Index. Properties in Sausalito's VE zones face additional wave action risk beyond still-water flooding, which typically results in higher insurance premiums and stricter building requirements.
Coastal flood insurance premiums in Sausalito are typically higher than inland areas due to the destructive force of storm surge and wave action. Properties in VE zones face the highest premiums because wave damage compounds the risk beyond still-water flooding. If your property is in a Special Flood Hazard Area (SFHA) and you have a federally regulated or government-backed mortgage, federal law generally requires your lender to ensure you carry flood insurance.
Coastal flood maps are among the most frequently updated in the FEMA system, as shoreline erosion and new storm surge modeling refine the boundaries. Letters of Map Revision (LOMR) may shift VE and AE zone boundaries after major storms or updated coastal studies. Use our free lookup tool to check the current flood zone for any Sausalito address.
Flood Insurance Discount: Sausalito
Sausalito participates in FEMA's Community Rating System (CRS), a voluntary program that rewards communities for flood mitigation efforts beyond minimum NFIP requirements. Residents in the Special Flood Hazard Area may qualify for reduced flood insurance premiums.
CRS Class
Class 9
SFHA Premium Discount
5% off
CRS classes range from 1 (best) to 10 (no discount). Sausalito's Class 9 rating means NFIP policyholders in the SFHA can receive up to a 5% discount on their flood insurance premiums. Properties outside the SFHA may receive a 5% discount.
Source: FEMA Community Rating System, October 2025. Discounts apply to NFIP policies only.
Sausalito, CA Flood Zone FAQ
What flood zones are in Sausalito, CA?
The most common FEMA flood zones in Sausalito are Zone AE, Zone VE, Zone X. Properties in these high-risk zones (SFHA) may require flood insurance with a federally regulated or government-backed mortgage.
Is flood insurance required in Sausalito?
If your Sausalito property is in a Special Flood Hazard Area (SFHA) and you have a federally regulated or government-backed mortgage, federal law generally requires your lender to ensure you carry flood insurance. Properties in Zone X are not federally required to carry flood insurance, though coverage is still recommended since over 40% of all NFIP flood claims come from Zone X properties.
How do I check my flood zone in Sausalito?
Enter your Sausalito address in the search tool above for an instant flood zone determination. Results include your FEMA flood zone, SFHA status, base flood elevation (if available), and FIRM panel information, pulled directly from FEMA's National Flood Hazard Layer.
Does Sausalito offer flood insurance discounts?
Yes. Sausalito participates in FEMA's Community Rating System (CRS) with a Class 9 rating, qualifying residents in the Special Flood Hazard Area for up to a 5% discount on NFIP flood insurance premiums. Properties outside the SFHA may receive a 5% discount.
Has Sausalito experienced major flooding events?
Marin County, where Sausalito is located, has been part of 10 federal disaster declarations for flooding, hurricanes, or severe storms. The most recent was Severe Winter Storms, Flooding, Landslides, and Mudslides in 2023. Federal disaster declarations are issued when flooding overwhelms local resources and triggers FEMA assistance programs.
How many flood insurance claims have been filed in Sausalito?
Marin County has recorded 3,295 NFIP flood insurance claims totaling $51.3M in payouts since 1978. The year with the most claims was 1982, with 626 claims and $4.7M in payouts. These figures cover all NFIP claims in the county, including Sausalito.
How many flood insurance policies are active in Sausalito?
Marin County currently has 7,408 active NFIP flood insurance policies with an average annual premium of $1,585. The most policies are in Zone AE (4,580 policies). These figures cover all active NFIP policies in the county.
How many Sausalito properties have flooded repeatedly?
Marin County has 232 properties with multiple flood losses on record, including 28 severe repetitive loss properties. These are properties that have experienced four or more NFIP claims of $5,000+ or two claims exceeding the building value.
Can my Sausalito property be removed from a high-risk flood zone?
Yes, if your property's natural ground elevation is above the Base Flood Elevation and FEMA inadvertently mapped it in a high-risk zone, you can apply for a Letter of Map Amendment (LOMA). A successful LOMA removes the property from the Special Flood Hazard Area, generally eliminating the federal mandatory flood insurance requirement. You will need an elevation certificate from a licensed surveyor. If a property was raised above the BFE with fill material, the process is a LOMR-F rather than a LOMA.
What is Base Flood Elevation in Sausalito?
Base Flood Elevation (BFE) is the predicted height of floodwaters during a 1% annual chance (100-year) flood, shown on FEMA maps as an elevation number in feet above sea level. In Sausalito's Zone AE and Zone VE areas, BFE lines appear on the FIRM as wavy contours labeled with elevation values. Properties with a lowest floor at or above the BFE typically qualify for significantly lower NFIP flood insurance premiums.
Other California Cities
Understanding Flood Zones
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Disclaimer: Flood risk data on this page is sourced from FEMA datasets including the National Risk Index, NFIP claims and policy records, disaster declarations, and the Community Rating System. These datasets were last extracted on March 2026 and may not reflect the most recent changes. This page is for informational purposes only and is not a certified flood zone determination. Always verify current flood zone status through FEMA or a licensed determination provider before making property, insurance, or lending decisions.