Decatur, TN
Decatur County in Tennessee has 3 FEMA disaster declarations on record covering 1975–2019, most recently Severe Storms, Flooding, Landslides, and Mudslides on Apr 17, 2019 (DR-4427). Its flood risk grade is A (Low risk), ranking #2430 of 3,277 U.S. counties, with 12 NFIP flood insurance claims totaling $173,798 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Decatur County
The 3 most recent federally declared disasters affecting Decatur County, TN (1975–2019). Total declarations on record: 3.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Apr 17, 2019 | Flood | Severe Storms, Flooding, Landslides, and Mudslides | DR-4427 |
| Sep 5, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3217 |
| Mar 22, 1975 | Flood | Severe Storms & Flooding | DR-459 |
Score Breakdown
The composite score of 9 is calculated from four weighted factors. See our methodology for details.
Other Counties in Tennessee
More Counties in Tennessee
Frequently Asked Questions
How many FEMA disaster declarations does Decatur County, TN have?
Decatur County, TN has 3 federal disaster declarations on FEMA record (1975–2019). The 3 most recent are: Severe Storms, Flooding, Landslides, and Mudslides (declared Apr 17, 2019, DR-4427); Hurricane Katrina Evacuation (declared Sep 5, 2005, DR-3217); Severe Storms & Flooding (declared Mar 22, 1975, DR-459). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Decatur County, TN?
Decatur County is graded A (composite score 9/100, low risk). It ranks #2430 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 Decatur County?
12 NFIP flood insurance claims have been filed in Decatur County, TN, totaling $173,798 in payouts. The average claim is $14,483. Source: FEMA FimaNfipClaims v2 dataset.
Has Decatur County, TN had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Decatur County was Severe Storms, Flooding, Landslides, and Mudslides on Apr 17, 2019 (DR-4427). The county has 3 declared disasters in the OpenFEMA record covering 1975–2019.
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.