Tuolumne, CA
Tuolumne County in California has 8 FEMA disaster declarations on record covering 1964–2023, most recently Severe Winter Storms, Flooding, Landslides, and Mudslides on Mar 10, 2023 (DR-3592). Its flood risk grade is A (Low risk), ranking #1186 of 3,277 U.S. counties, with 4 NFIP flood insurance claims totaling $40,070 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Tuolumne County
The 8 most recent federally declared disasters affecting Tuolumne County, CA (1964–2023). Total declarations on record: 8.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Mar 10, 2023 | Flood | Severe Winter Storms, Flooding, Landslides, and Mudslides | DR-3592 |
| Jan 14, 2023 | Flood | Severe Winter Storms, Flooding, Landslides, and Mudslides | DR-4683 |
| Apr 1, 2017 | Flood | Severe Winter Storms, Flooding, and Mudslides | DR-4308 |
| Mar 16, 2017 | Flood | Severe Winter Storms, Flooding, and Mudslides | DR-4305 |
| Sep 13, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3248 |
| Feb 21, 1986 | Flood | Severe Storms & Flooding | DR-758 |
| Jan 26, 1969 | Flood | Severe Storms & Flooding | DR-253 |
| 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 |
| Colusa | A | 12 | 5 | 8 |
| Kings | A | 12 | 1 | 9 |
| Modoc | A | 12 | 0 | 8 |
| Mono | A | 12 | 1 | 8 |
More Counties in California
Frequently Asked Questions
How many FEMA disaster declarations does Tuolumne County, CA have?
Tuolumne 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 Mar 10, 2023, DR-3592); Severe Winter Storms, Flooding, Landslides, and Mudslides (declared Jan 14, 2023, DR-4683); Severe Winter Storms, Flooding, and Mudslides (declared Apr 1, 2017, DR-4308); Severe Winter Storms, Flooding, and Mudslides (declared Mar 16, 2017, DR-4305); Hurricane Katrina Evacuation (declared Sep 13, 2005, DR-3248). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Tuolumne County, CA?
Tuolumne County is graded A (composite score 12/100, low risk). It ranks #1186 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 Tuolumne County?
4 NFIP flood insurance claims have been filed in Tuolumne County, CA, totaling $40,070 in payouts. The average claim is $10,018. Source: FEMA FimaNfipClaims v2 dataset.
Has Tuolumne County, CA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Tuolumne County was Severe Winter Storms, Flooding, Landslides, and Mudslides on Mar 10, 2023 (DR-3592). 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.
Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
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.