Jefferson, WA
Jefferson County in Washington has 12 FEMA disaster declarations on record covering 1979–2026, most recently Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). Its flood risk grade is A (Low risk), ranking #664 of 3,277 U.S. counties, with 4 NFIP flood insurance claims totaling $173,687 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Jefferson County
The 12 most recent federally declared disasters affecting Jefferson County, WA (1979–2026). Total declarations on record: 12.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Apr 7, 2026 | Flood | Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides | DR-4906 |
| Dec 12, 2025 | Flood | Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides | DR-3629 |
| Mar 29, 2022 | Flood | Severe Winter Storms, Snowstorms, Straight-Line Winds, Floodin | DR-4650 |
| Jan 5, 2022 | Flood | Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides | DR-4635 |
| Feb 2, 2016 | Flood | Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, Mudslides, and A T | DR-4253 |
| Jan 30, 2009 | Flood | Severe Winter Storm, Landslides, Mudslides, and Flooding | DR-1817 |
| Sep 7, 2005 | Coastal Storm | Hurricane Katrina Evacuation | DR-3227 |
| Apr 2, 1997 | Flood | Heavy Rains, Snow Melt, Flooding, Land & MUD Slides | DR-1172 |
| Mar 8, 1991 | Flood | Severe Storms & High Tides | DR-896 |
| Nov 26, 1990 | Flood | Severe Storms & Flooding | DR-883 |
| Feb 15, 1986 | Flood | Severe Storms & Flooding | DR-757 |
| Dec 31, 1979 | Flood | Storms, High Tides, Mudslides & Flooding | DR-612 |
Score Breakdown
The composite score of 14 is calculated from four weighted factors. See our methodology for details.
Other Counties in Washington
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Pacific | A | 14 | 7 | 12 |
| Lewis | A | 15 | 23 | 20 |
| Mason | A | 15 | 9 | 13 |
| Kittitas | A | 15 | 7 | 9 |
| Pierce | A | 15 | 38 | 12 |
| Clallam | A | 13 | 0 | 11 |
More Counties in Washington
Frequently Asked Questions
How many FEMA disaster declarations does Jefferson County, WA have?
Jefferson County, WA has 12 federal disaster declarations on FEMA record (1979–2026). The 5 most recent are: Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Apr 7, 2026, DR-4906); Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Dec 12, 2025, DR-3629); Severe Winter Storms, Snowstorms, Straight-Line Winds, Floodin (declared Mar 29, 2022, DR-4650); Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Jan 5, 2022, DR-4635); Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, Mudslides, and A T (declared Feb 2, 2016, DR-4253). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Jefferson County, WA?
Jefferson County is graded A (composite score 14/100, low risk). It ranks #664 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 Jefferson County?
4 NFIP flood insurance claims have been filed in Jefferson County, WA, totaling $173,687 in payouts. The average claim is $43,422. Source: FEMA FimaNfipClaims v2 dataset.
Has Jefferson County, WA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Jefferson County was Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). The county has 12 declared disasters in the OpenFEMA record covering 1979–2026.
For this entity, the underlying data on this page comes from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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.