County Hazards

States › Maryland › St. Mary's County › ZIP 20674

ZIP code 20674, St. Mary's County, Maryland

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 20674, in St. Mary's County, Maryland, has 192 National Flood Insurance Program claims in the OpenFEMA record since 1978, 152 of them paid for a total of $3.4M.

That is 31.3% of the 613 claims recorded across St. Mary's County. The average paid claim in the ZIP is $22K, close to the county average of $26K and the Maryland average of $23K.

FEMA counts 29 repetitive-loss properties 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 990 residential flood policies in force, covering 2.4% of residential structures.

192NFIP claims since 1978
152paid claims
$3.4Mtotal paid
$22Kaverage paid claim

Compared with the county and state

MeasureZIP 20674St. Mary'sMarylandUS
Claims since 197819261325,3762,680,429
Share of claims paid79%72%59%78%
Average paid claim$22K$26K$23K$43K
Share of county claims31.3%100%——
Repetitive-loss properties29651,305—

Claims by year of loss

197820022026
NFIP claims in ZIP 20674 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s0$0
1980s2$0
1990s9$6,611
2000s162$3,252,097
2010s10$60,823
2020s9$75,505
Year of lossClaimsPaid claimsAmount paidAverage paid
202310$0—
202183$75,505$25,168
201843$39,309$13,103
201411$2,797$2,797
201221$5,800$5,800
201132$12,918$6,459
200911$1,976$1,976
200854$73,205$18,301
20065850$1,146,140$22,923
20039884$2,030,776$24,176
199693$6,611$2,204
198520$0—

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: St. Mary's County

St. Mary's County has 1,060 weather events in the NCEI record since 1950 (27 in the last 12 months), 18 federal disaster declarations, and an overall National Risk Index rating of "Very Low". Flood-type events recorded in the county: 240; hurricane-strength tracks within 50 miles: 0.

Hail: 80 · Tornado: 34 · Flood: 240 · Wind: 377 · Winter: 104 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 20674?

192 claims since 1978 in the OpenFEMA NFIP claims file, 152 of them with a payment.

How much has the NFIP paid out in ZIP 20674?

$3.4M across 152 paid claims (building, contents and increased-cost-of-compliance payments combined), about $22K per paid claim.

Which year had the most flood claims in 20674?

2003, with 98 claims and $2.0M paid.

What county is ZIP 20674 in?

Most claims in this ZIP carry the county code for St. Mary's County, Maryland; 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.