Washington, OR
Washington County in Oregon has 5 FEMA disaster declarations on record covering 1964–2005, most recently Hurricane Katrina Evacuation on Sep 7, 2005 (DR-3228). Its flood risk grade is A (Low risk), ranking #2339 of 3,277 U.S. counties, with 11 NFIP flood insurance claims totaling $161,426 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Washington County
The 5 most recent federally declared disasters affecting Washington County, OR (1964–2005). Total declarations on record: 5.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 7, 2005 | Coastal Storm | Hurricane Katrina Evacuation | DR-3228 |
| Feb 9, 1996 | Flood | High Winds, Severe Storms and Flooding | DR-1099 |
| Jan 25, 1974 | Flood | Severe Storms, Snowmelt & Flooding | DR-413 |
| Jan 21, 1972 | Flood | Severe Storms & Flooding | DR-319 |
| Dec 24, 1964 | Flood | Heavy Rains & Flooding | DR-184 |
Score Breakdown
The composite score of 10 is calculated from four weighted factors. See our methodology for details.
Other Counties in Oregon
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Union | A | 10 | 0 | 4 |
| Wallowa | A | 10 | 0 | 5 |
| Umatilla Indian Reservation | A | 10 | 0 | 5 |
| Umatilla | A | 10 | 9 | 5 |
| Curry | A | 10 | 1 | 5 |
| Wheeler | A | 10 | 0 | 4 |
More Counties in Oregon
Frequently Asked Questions
How many FEMA disaster declarations does Washington County, OR have?
Washington County, OR has 5 federal disaster declarations on FEMA record (1964–2005). The 5 most recent are: Hurricane Katrina Evacuation (declared Sep 7, 2005, DR-3228); High Winds, Severe Storms and Flooding (declared Feb 9, 1996, DR-1099); Severe Storms, Snowmelt & Flooding (declared Jan 25, 1974, DR-413); Severe Storms & Flooding (declared Jan 21, 1972, DR-319); Heavy Rains & Flooding (declared Dec 24, 1964, DR-184). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Washington County, OR?
Washington County is graded A (composite score 10/100, low risk). It ranks #2339 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 Washington County?
11 NFIP flood insurance claims have been filed in Washington County, OR, totaling $161,426 in payouts. The average claim is $14,675. Source: FEMA FimaNfipClaims v2 dataset.
Has Washington County, OR had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Washington County was Hurricane Katrina Evacuation on Sep 7, 2005 (DR-3228). The county has 5 declared disasters in the OpenFEMA record covering 1964–2005.
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FEMA OpenFEMA datasets, 2026.