King, WA
King County in Washington has 18 FEMA disaster declarations on record covering 1964–2026, most recently Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). Its flood risk grade is B (Moderate risk), ranking #61 of 3,277 U.S. counties, with 78 NFIP flood insurance claims totaling $2,317,025 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in King County
The 18 most recent federally declared disasters affecting King County, WA (1964–2026). Total declarations on record: 18.
| 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 |
| Apr 23, 2020 | Flood | Severe Storms, Flooding, Landslides, and Mudslides | DR-4539 |
| Apr 21, 2017 | Flood | Severe Winter Storms, Flooding, Landslides, Mudslides | DR-4309 |
| 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 |
| Feb 9, 1996 | Flood | High Winds, Severe Storms and Flooding | DR-1100 |
| Mar 8, 1991 | Flood | Severe Storms & High Tides | DR-896 |
| Nov 26, 1990 | Flood | Severe Storms & Flooding | DR-883 |
| Jan 18, 1990 | Flood | Severe Storms & Flooding | DR-852 |
| Dec 15, 1986 | Flood | Severe Storms & Flooding | DR-784 |
| Feb 15, 1986 | Flood | Severe Storms & Flooding | DR-757 |
| Dec 31, 1979 | Flood | Storms, High Tides, Mudslides & Flooding | DR-612 |
| Dec 10, 1977 | Flood | Severe Storms,mudslides, & Flooding | DR-545 |
| Dec 13, 1975 | Flood | Severe Storms & Flooding | DR-492 |
| Mar 24, 1972 | Flood | Heavy Rains & Flooding | DR-328 |
| Dec 29, 1964 | Flood | Heavy Rains & Flooding | DR-185 |
Score Breakdown
The composite score of 25 is calculated from four weighted factors. See our methodology for details.
Other Counties in Washington
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Whatcom | B | 23 | 97 | 14 |
| Skagit | B | 22 | 48 | 13 |
| Thurston | A | 20 | 13 | 15 |
| Kitsap | A | 19 | 16 | 7 |
| Island | A | 18 | 19 | 6 |
| Wahkiakum | A | 16 | 2 | 15 |
More Counties in Washington
Frequently Asked Questions
How many FEMA disaster declarations does King County, WA have?
King County, WA has 18 federal disaster declarations on FEMA record (1964–2026). 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 Storms, Flooding, Landslides, and Mudslides (declared Apr 23, 2020, DR-4539); Severe Winter Storms, Flooding, Landslides, Mudslides (declared Apr 21, 2017, DR-4309); Severe Winter Storm, Landslides, Mudslides, and Flooding (declared Jan 30, 2009, DR-1817). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for King County, WA?
King County is graded B (composite score 25/100, moderate risk). It ranks #61 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 King County?
78 NFIP flood insurance claims have been filed in King County, WA, totaling $2,317,025 in payouts. The average claim is $29,705. Source: FEMA FimaNfipClaims v2 dataset.
Has King County, WA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting King County was Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). The county has 18 declared disasters in the OpenFEMA record covering 1964–2026.
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.