County Hazards

States › Texas › Brazoria County › ZIP 77531

ZIP code 77531, Brazoria County, Texas

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 77531, in Brazoria County, Texas, has 709 National Flood Insurance Program claims in the OpenFEMA record since 1978, 603 of them paid for a total of $29M.

That is 3.3% of the 21,436 claims recorded across Brazoria County. The average paid claim in the ZIP is $48K, higher than the county average of $36K and the Texas average of $55K.

FEMA counts 41 repetitive-loss properties and 7 severe repetitive-loss properties in the ZIP (properties with two or more paid flood claims); their locations are not published.

At county level FEMA counts 27,418 residential flood policies in force, covering 22.5% of residential structures.

709NFIP claims since 1978
603paid claims
$29Mtotal paid
$48Kaverage paid claim

Compared with the county and state

MeasureZIP 77531BrazoriaTexasUS
Claims since 197870921,436394,2042,680,429
Share of claims paid85%81%80%78%
Average paid claim$48K$36K$55K$43K
Share of county claims3.3%100%——
Repetitive-loss properties411,96334,444—

Claims by year of loss

197820022026
NFIP claims in ZIP 77531 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s147$532,235
1980s91$218,029
1990s36$455,995
2000s172$2,043,094
2010s242$24,610,335
2020s21$905,032
Year of lossClaimsPaid claimsAmount paidAverage paid
202666$192,700$32,117
202485$702,070$140,414
202161$10,263$10,263
202010$0—
201932$74,069$37,034
2017231214$24,495,687$114,466
201621$23,666$23,666
201554$16,913$4,228
201410$0—
200911$1,208$1,208
2008205$40,535$8,107
200711$7,800$7,800
20061615$224,577$14,972
200465$40,295$8,059
200331$575$575
200210998$1,600,115$16,328
20011410$113,293$11,329
200021$14,697$14,697
19982928$436,105$15,575
199211$3,906$3,906
199166$15,985$2,664
198910$0—
198643$3,007$1,002
198510$0—
19844033$120,161$3,641
1983102$3,354$1,677
19822725$69,703$2,788
198133$13,838$4,613
198054$7,966$1,991
1979147128$532,235$4,158

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: Brazoria County

Brazoria County has 595 weather events in the NCEI record since 1950 (12 in the last 12 months), 34 federal disaster declarations, and an overall National Risk Index rating of "Relatively Moderate". Flood-type events recorded in the county: 71; hurricane-strength tracks within 50 miles: 21.

Hail: 134 · Tornado: 96 · Flood: 71 · Wind: 202 · Winter: 5 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 77531?

709 claims since 1978 in the OpenFEMA NFIP claims file, 603 of them with a payment.

How much has the NFIP paid out in ZIP 77531?

$29M across 603 paid claims (building, contents and increased-cost-of-compliance payments combined), about $48K per paid claim.

Which year had the most flood claims in 77531?

2017, with 231 claims and $24M paid.

What county is ZIP 77531 in?

Most claims in this ZIP carry the county code for Brazoria County, Texas; 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.