County Hazards

States › Maryland › Calvert County › ZIP 20639

ZIP code 20639, Calvert 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.

OpenFEMA lists 56 NFIP claims for ZIP 20639 (Calvert County, Maryland), with $862K paid on 44 claims since 1978.

That is 10% of the 559 claims recorded across Calvert County. The average paid claim in the ZIP is $20K, close to the county average of $22K and the Maryland average of $23K.

FEMA counts 7 repetitive-loss properties and 0 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 699 residential flood policies in force, covering 2% of residential structures.

56NFIP claims since 1978
44paid claims
$862Ktotal paid
$20Kaverage paid claim

Compared with the county and state

MeasureZIP 20639CalvertMarylandUS
Claims since 19785655925,3762,680,429
Share of claims paid79%77%59%78%
Average paid claim$20K$22K$23K$43K
Share of county claims10.0%100%——
Repetitive-loss properties7471,305—

Claims by year of loss

197820022026
NFIP claims in ZIP 20639 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s0$0
1980s7$11,146
1990s7$16,002
2000s25$697,166
2010s9$26,181
2020s8$111,560
Year of lossClaimsPaid claimsAmount paidAverage paid
202422$32,110$16,055
202311$12,866$12,866
202122$48,304$24,152
202031$18,279$18,279
201833$22,979$7,660
201611$849$849
201521$440$440
201210$0—
201021$1,914$1,914
200944$15,581$3,895
200844$24,453$6,113
200633$11,920$3,973
20031412$645,212$53,768
199674$16,002$4,000
198575$11,146$2,229

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: Calvert County

Calvert County has 774 weather events in the NCEI record since 1950 (27 in the last 12 months), 24 federal disaster declarations, and an overall National Risk Index rating of "Very Low". Flood-type events recorded in the county: 63; hurricane-strength tracks within 50 miles: 1.

Hail: 49 · Tornado: 19 · Flood: 63 · Wind: 339 · Winter: 108 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 20639?

56 claims since 1978 in the OpenFEMA NFIP claims file, 44 of them with a payment.

How much has the NFIP paid out in ZIP 20639?

$862K across 44 paid claims (building, contents and increased-cost-of-compliance payments combined), about $20K per paid claim.

Which year had the most flood claims in 20639?

2003, with 14 claims and $645K paid.

What county is ZIP 20639 in?

Most claims in this ZIP carry the county code for Calvert 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 30 Sep 2026. See the guide to redacted NFIP claims and the methodology.