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Sumner, TN

Flood Risk Score: 17/100 · Rank #439 of 3,277 counties

Sumner County in Tennessee has 3 FEMA disaster declarations on record covering 1969–2005, most recently Hurricane Katrina Evacuation on Sep 5, 2005 (DR-3217). Its flood risk grade is A (Low risk), ranking #439 of 3,277 U.S. counties, with 24 NFIP flood insurance claims totaling $558,489 in payouts. Flood risk is relatively low compared to the national average.

17
Risk Score
24
NFIP Claims
$558,489
Total Payouts
3
Disasters
$23,270
Avg Claim
24
Active Policies

FEMA Disaster Declarations in Sumner County

The 3 most recent federally declared disasters affecting Sumner County, TN (1969–2005). Total declarations on record: 3.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 5, 2005HurricaneHurricane Katrina EvacuationDR-3217
Mar 22, 1975FloodSevere Storms & FloodingDR-459
Jul 11, 1969FloodSevere Storms & FloodingDR-263

Score Breakdown

The composite score of 17 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
6
Claim Severity
20%
0
Year-over-Year Trend
15%
100

Other Counties in Tennessee

CountyGradeScoreClaimsDisasters
KnoxA17193
CarterA18195
WilliamsonA16432
WilsonA16231
RutherfordA15103
DicksonA1464
View All Counties in Tennessee

Frequently Asked Questions

How many FEMA disaster declarations does Sumner County, TN have?

Sumner County, TN has 3 federal disaster declarations on FEMA record (1969–2005). The 3 most recent are: Hurricane Katrina Evacuation (declared Sep 5, 2005, DR-3217); Severe Storms & Flooding (declared Mar 22, 1975, DR-459); Severe Storms & Flooding (declared Jul 11, 1969, DR-263). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Sumner County, TN?

Sumner County is graded A (composite score 17/100, low risk). It ranks #439 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 Sumner County?

24 NFIP flood insurance claims have been filed in Sumner County, TN, totaling $558,489 in payouts. The average claim is $23,270. Source: FEMA FimaNfipClaims v2 dataset.

Has Sumner County, TN had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Sumner County was Hurricane Katrina Evacuation on Sep 5, 2005 (DR-3217). The county has 3 declared disasters in the OpenFEMA record covering 1969–2005.

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.

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.