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Lewis, TN

Flood Risk Score: 10/100 · Rank #1926 of 3,277 counties

Lewis County in Tennessee has 4 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 #1926 of 3,277 U.S. counties, with 2 NFIP flood insurance claims totaling $55,269 in payouts. Flood risk is relatively low compared to the national average.

10
Risk Score
2
NFIP Claims
$55,269
Total Payouts
4
Disasters
$27,634
Avg Claim
2
Active Policies

FEMA Disaster Declarations in Lewis County

The 4 most recent federally declared disasters affecting Lewis County, TN (1975–2019). Total declarations on record: 4.

DeclaredIncident TypeTitleFEMA Disaster #
Apr 17, 2019FloodSevere Storms, Flooding, Landslides, and MudslidesDR-4427
Sep 5, 2005HurricaneHurricane Katrina EvacuationDR-3217
Jun 21, 1991FloodSevere Storms & FloodingDR-910
Mar 22, 1975FloodSevere Storms & FloodingDR-459

Score Breakdown

The composite score of 10 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
9
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in Tennessee

CountyGradeScoreClaimsDisasters
HoustonA1014
HumphreysA10245
AndersonA1045
BedfordA1014
BledsoeA1005
BlountA1044
View All Counties in Tennessee

Frequently Asked Questions

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

Lewis County, TN has 4 federal disaster declarations on FEMA record (1975–2019). The 4 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 Jun 21, 1991, DR-910); 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 Lewis County, TN?

Lewis County is graded A (composite score 10/100, low risk). It ranks #1926 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?

2 NFIP flood insurance claims have been filed in Lewis County, TN, totaling $55,269 in payouts. The average claim is $27,634. Source: FEMA FimaNfipClaims v2 dataset.

Has Lewis County, TN had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Lewis County was Severe Storms, Flooding, Landslides, and Mudslides on Apr 17, 2019 (DR-4427). The county has 4 declared disasters in the OpenFEMA record covering 1975–2019.

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.