County Hazards

States › Connecticut › Middlesex County › ZIP 06423

ZIP code 06423, Middlesex County, Connecticut

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.

ZIP code 06423, in Middlesex County, Connecticut, has 42 National Flood Insurance Program claims in the OpenFEMA record since 1978, 28 of them paid for a total of $478K.

That is 1.9% of the 2,242 claims recorded across Middlesex County. The average paid claim in the ZIP is $17K, lower than the county average of $23K and the Connecticut average of $24K.

FEMA counts 8 repetitive-loss properties and 2 severe repetitive-loss properties in the ZIP (properties with two or more paid flood claims); their locations are not published.

42NFIP claims since 1978
28paid claims
$478Ktotal paid
$17Kaverage paid claim

Compared with the county and state

MeasureZIP 06423MiddlesexConnecticutUS
Claims since 1978422,24229,4922,680,429
Share of claims paid67%75%79%78%
Average paid claim$17K$23K$24K$43K
Share of county claims1.9%100%——
Repetitive-loss properties82633,132—

Claims by year of loss

197820022026
NFIP claims in ZIP 06423 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s2$6,696
1980s6$15,252
1990s2$17,850
2000s3$56,833
2010s14$279,532
2020s15$102,185
Year of lossClaimsPaid claimsAmount paidAverage paid
202421$34,973$34,973
2021137$67,212$9,602
2018118$233,634$29,204
201421$22,163$22,163
201111$23,735$23,735
200733$56,833$18,944
199022$17,850$8,925
198721$4,281$4,281
198411$10,000$10,000
198310$0—
198221$970$970
197922$6,696$3,348

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: Middlesex County

Middlesex County has 233 weather events in the NCEI record since 1950 (5 in the last 12 months), 28 federal disaster declarations, and no National Risk Index row under current boundaries. Flood-type events recorded in the county: 35; hurricane-strength tracks within 50 miles: 7.

Hail: 41 · Tornado: 8 · Flood: 35 · Wind: 113 · Winter: 0 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 06423?

42 claims since 1978 in the OpenFEMA NFIP claims file, 28 of them with a payment.

How much has the NFIP paid out in ZIP 06423?

$478K across 28 paid claims (building, contents and increased-cost-of-compliance payments combined), about $17K per paid claim.

Which year had the most flood claims in 06423?

2021, with 13 claims and $67K paid.

What county is ZIP 06423 in?

Most claims in this ZIP carry the county code for Middlesex County, Connecticut; 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 1 Oct 2026. See the guide to redacted NFIP claims and the methodology.