Marin, CA
Marin County in California has 11 FEMA disaster declarations on record covering 1964–2023, most recently Severe Winter Storms, Flooding, Landslides, and Mudslides on Jan 14, 2023 (DR-4683). Its flood risk grade is A (Low risk), ranking #893 of 3,277 U.S. counties, with 34 NFIP flood insurance claims totaling $446,575 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Marin County
The 11 most recent federally declared disasters affecting Marin County, CA (1964–2023). Total declarations on record: 11.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Jan 14, 2023 | Flood | Severe Winter Storms, Flooding, Landslides, and Mudslides | DR-4683 |
| Jan 9, 2023 | Flood | Severe Winter Storms, Flooding, and Mudslides | DR-3591 |
| Apr 1, 2017 | Flood | Severe Winter Storms, Flooding, and Mudslides | DR-4308 |
| Sep 13, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3248 |
| Feb 21, 1986 | Flood | Severe Storms & Flooding | DR-758 |
| Feb 9, 1983 | Coastal Storm | Coastal Storms, Floods, Slides & Tornadoes | DR-677 |
| Jan 7, 1982 | Flood | Severe Storms, Flood, Mudslides & High Tide | DR-651 |
| Feb 8, 1973 | Flood | Severe Storms, High Tides & Flooding | DR-364 |
| Feb 16, 1970 | Flood | Severe Storms & Flooding | DR-283 |
| Jan 26, 1969 | Flood | Severe Storms & Flooding | DR-253 |
| Dec 24, 1964 | Flood | Heavy Rains & Flooding | DR-183 |
Score Breakdown
The composite score of 13 is calculated from four weighted factors. See our methodology for details.
Other Counties in California
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Del Norte | A | 13 | 0 | 10 |
| Glenn | A | 13 | 0 | 10 |
| Napa | A | 13 | 1 | 10 |
| Trinity | A | 13 | 0 | 11 |
| San Diego | A | 13 | 99 | 14 |
| San Luis Obispo | A | 14 | 18 | 12 |
More Counties in California
Frequently Asked Questions
How many FEMA disaster declarations does Marin County, CA have?
Marin County, CA has 11 federal disaster declarations on FEMA record (1964–2023). The 5 most recent are: Severe Winter Storms, Flooding, Landslides, and Mudslides (declared Jan 14, 2023, DR-4683); Severe Winter Storms, Flooding, and Mudslides (declared Jan 9, 2023, DR-3591); Severe Winter Storms, Flooding, and Mudslides (declared Apr 1, 2017, DR-4308); Hurricane Katrina Evacuation (declared Sep 13, 2005, DR-3248); Severe Storms & Flooding (declared Feb 21, 1986, DR-758). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Marin County, CA?
Marin County is graded A (composite score 13/100, low risk). It ranks #893 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).
How many NFIP flood insurance claims have been filed in Marin County?
34 NFIP flood insurance claims have been filed in Marin County, CA, totaling $446,575 in payouts. The average claim is $13,135. Source: FEMA FimaNfipClaims v2 dataset.
Has Marin County, CA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Marin County was Severe Winter Storms, Flooding, Landslides, and Mudslides on Jan 14, 2023 (DR-4683). The county has 11 declared disasters in the OpenFEMA record covering 1964–2023.
this entity is one of the data points covered by this site’s U.S. flood risk, NFIP claims, and disaster declarations dataset. The detail above comes directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.
The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FEMA OpenFEMA datasets, 2026.