Lewis, WA
Lewis County in Washington has 20 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 A (Low risk), ranking #564 of 3,277 U.S. counties, with 23 NFIP flood insurance claims totaling $1,001,616 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Lewis County
The 20 most recent federally declared disasters affecting Lewis County, WA (1964–2026). Total declarations on record: 20.
| 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 |
| Apr 23, 2020 | Flood | Severe Storms, Flooding, Landslides, and Mudslides | DR-4539 |
| Apr 21, 2017 | Flood | Severe Winter Storms, Flooding, Landslides, Mudslides | DR-4309 |
| 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 |
| 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 |
| Dec 10, 1977 | Flood | Severe Storms,mudslides, & Flooding | DR-545 |
| Dec 13, 1975 | Flood | Severe Storms & Flooding | DR-492 |
| Jan 25, 1974 | Flood | Severe Storms, Snowmelt & Flooding | DR-414 |
| Feb 1, 1972 | Flood | Severe Storms & Flooding | DR-322 |
| Feb 9, 1971 | Flood | Heavy Rains, Melting Snows & Flooding | DR-300 |
| Dec 29, 1964 | Flood | Heavy Rains & Flooding | DR-185 |
Score Breakdown
The composite score of 15 is calculated from four weighted factors. See our methodology for details.
Other Counties in Washington
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Mason | A | 15 | 9 | 13 |
| Kittitas | A | 15 | 7 | 9 |
| Pierce | A | 15 | 38 | 12 |
| Wahkiakum | A | 16 | 2 | 15 |
| Jefferson | A | 14 | 4 | 12 |
| Pacific | A | 14 | 7 | 12 |
More Counties in Washington
Frequently Asked Questions
How many FEMA disaster declarations does Lewis County, WA have?
Lewis County, WA has 20 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 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 Storms, Flooding, Landslides, and Mudslides (declared Apr 23, 2020, DR-4539). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Lewis County, WA?
Lewis County is graded A (composite score 15/100, low risk). It ranks #564 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 Lewis County?
23 NFIP flood insurance claims have been filed in Lewis County, WA, totaling $1,001,616 in payouts. The average claim is $43,549. Source: FEMA FimaNfipClaims v2 dataset.
Has Lewis County, WA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Lewis County was Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). The county has 20 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.
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.