County Hazards

States › Tennessee › Knox County › ZIP 37721

ZIP code 37721, Knox County, Tennessee

National Flood Insurance Program claims and payouts recorded for this ZIP code, with county context.

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. NFIP claims as of 8 Sep 2026.

OpenFEMA lists 15 NFIP claims for ZIP 37721 (Knox County, Tennessee), with $252K paid on 11 claims since 1978.

That is 2.5% of the 598 claims recorded across Knox County. The average paid claim in the ZIP is $23K, higher than the county average of $17K and the Tennessee average of $33K.

FEMA counts 1 repetitive-loss property and 1 severe repetitive-loss property in the ZIP (properties with two or more paid flood claims); their locations are not published.

At county level FEMA counts 772 residential flood policies in force, covering 0.5% of residential structures.

15NFIP claims since 1978
11paid claims
$252Ktotal paid
$23Kaverage paid claim

Compared with the county and state

MeasureZIP 37721KnoxTennesseeUS
Claims since 19781559817,7062,680,429
Share of claims paid73%80%82%78%
Average paid claim$23K$17K$33K$43K
Share of county claims2.5%100%——
Repetitive-loss properties1651,600—

Claims by year of loss

197820022026
NFIP claims in ZIP 37721 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s0$0
1980s1$1,376
1990s3$80,895
2000s3$52,287
2010s3$1,635
2020s5$115,461
Year of lossClaimsPaid claimsAmount paidAverage paid
202611$2,009$2,009
202411$27,288$27,288
202311$21,163$21,163
202211$22,713$22,713
202011$42,288$42,288
201811$1,635$1,635
201320$0—
200321$10,149$10,149
200211$42,138$42,138
199911$75,776$75,776
199810$0—
199711$5,118$5,118
198411$1,376$1,376

Claims are counted by year of loss as recorded in OpenFEMA's redacted NFIP claims file; amounts combine building, contents and increased-cost-of-compliance payments. ZIP codes in the file are the policyholder's reported ZIP.

County context: Knox County

Knox County has 867 weather events in the NCEI record since 1950 (41 in the last 12 months), 19 federal disaster declarations, and an overall National Risk Index rating of "Relatively Moderate". Flood-type events recorded in the county: 115; hurricane-strength tracks within 50 miles: 0.

Hail: 169 · Tornado: 15 · Flood: 115 · Wind: 508 · Winter: 52 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 37721?

15 claims since 1978 in the OpenFEMA NFIP claims file, 11 of them with a payment.

How much has the NFIP paid out in ZIP 37721?

$252K across 11 paid claims (building, contents and increased-cost-of-compliance payments combined), about $23K per paid claim.

Which year had the most flood claims in 37721?

2003, with 2 claims and $10K paid.

What county is ZIP 37721 in?

Most claims in this ZIP carry the county code for Knox County, Tennessee; ZIP codes can cross county lines. The county page carries the storm record, declarations and risk index for the area.

Provenance

OpenFEMA NfipClaims v3 (as of 8 Sep 2026) and NfipMultipleLossProperties v1 (2 Aug 2026), aggregated by ZIP code and year of loss on this site; no property-level record is shown. County storm figures from NOAA NCEI through 30 Jun 2026. Built 30 Sep 2026. See the guide to redacted NFIP claims and the methodology.