Washington, OK
Washington County in Oklahoma has 4 FEMA disaster declarations on record covering 1974–2005, most recently Hurricane Katrina Evacuation on Sep 5, 2005 (DR-3219). Its flood risk grade is A (Low risk), ranking #2380 of 3,277 U.S. counties, with 6 NFIP flood insurance claims totaling $304,411 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Washington County
The 4 most recent federally declared disasters affecting Washington County, OK (1974–2005). Total declarations on record: 4.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 5, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3219 |
| Oct 14, 1986 | Flood | Severe Storms & Flooding | DR-778 |
| Nov 26, 1974 | Flood | Severe Storms & Flooding | DR-453 |
| Mar 22, 1974 | Flood | Heavy Rains & Flooding | DR-419 |
Score Breakdown
The composite score of 10 is calculated from four weighted factors. See our methodology for details.
Other Counties in Oklahoma
More Counties in Oklahoma
Frequently Asked Questions
How many FEMA disaster declarations does Washington County, OK have?
Washington County, OK has 4 federal disaster declarations on FEMA record (1974–2005). The 4 most recent are: Hurricane Katrina Evacuation (declared Sep 5, 2005, DR-3219); Severe Storms & Flooding (declared Oct 14, 1986, DR-778); Severe Storms & Flooding (declared Nov 26, 1974, DR-453); Heavy Rains & Flooding (declared Mar 22, 1974, DR-419). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Washington County, OK?
Washington County is graded A (composite score 10/100, low risk). It ranks #2380 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?
6 NFIP flood insurance claims have been filed in Washington County, OK, totaling $304,411 in payouts. The average claim is $50,735. Source: FEMA FimaNfipClaims v2 dataset.
Has Washington County, OK had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Washington County was Hurricane Katrina Evacuation on Sep 5, 2005 (DR-3219). The county has 4 declared disasters in the OpenFEMA record covering 1974–2005.
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.