Colusa, CA
Colusa County in California has 8 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 #1175 of 3,277 U.S. counties, with 5 NFIP flood insurance claims totaling $95,517 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Colusa County
The 8 most recent federally declared disasters affecting Colusa County, CA (1964–2023). Total declarations on record: 8.
| 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 |
| Feb 16, 1970 | Flood | Severe Storms & Flooding | DR-283 |
| Dec 24, 1964 | Flood | Heavy Rains & Flooding | DR-183 |
Score Breakdown
The composite score of 12 is calculated from four weighted factors. See our methodology for details.
Other Counties in California
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Tule River Indian Reservation | A | 12 | 0 | 9 |
| Butte | A | 12 | 7 | 8 |
| Kings | A | 12 | 1 | 9 |
| Modoc | A | 12 | 0 | 8 |
| Mono | A | 12 | 1 | 8 |
| Plumas | A | 12 | 2 | 8 |
More Counties in California
Frequently Asked Questions
How many FEMA disaster declarations does Colusa County, CA have?
Colusa County, CA has 8 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 Colusa County, CA?
Colusa County is graded A (composite score 12/100, low risk). It ranks #1175 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 Colusa County?
5 NFIP flood insurance claims have been filed in Colusa County, CA, totaling $95,517 in payouts. The average claim is $19,103. Source: FEMA FimaNfipClaims v2 dataset.
Has Colusa County, CA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Colusa County was Severe Winter Storms, Flooding, Landslides, and Mudslides on Jan 14, 2023 (DR-4683). The county has 8 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.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FEMA OpenFEMA datasets, 2026.