County Hazards

States › Maryland › Charles County › ZIP 20640

ZIP code 20640, Charles 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 8 NFIP claims for ZIP 20640 (Charles County, Maryland), with $50K paid on 4 claims since 1978.

That is 2.2% of the 361 claims recorded across Charles County. The average paid claim in the ZIP is $13K, lower than the county average of $27K and the Maryland average of $23K.

At county level FEMA counts 547 residential flood policies in force, covering 0.9% of residential structures.

8NFIP claims since 1978
4paid claims
$50Ktotal paid
$13Kaverage paid claim

Compared with the county and state

MeasureZIP 20640CharlesMarylandUS
Claims since 1978836125,3762,680,429
Share of claims paid50%67%59%78%
Average paid claim$13K$27K$23K$43K
Share of county claims2.2%100%——
Repetitive-loss properties0341,305—

Claims by year of loss

197820022026
NFIP claims in ZIP 20640 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s0$0
1980s1$0
1990s1$3,150
2000s0$0
2010s6$47,100
2020s0$0
Year of lossClaimsPaid claimsAmount paidAverage paid
201820$0—
201511$6,404$6,404
201311$18,809$18,809
201210$0—
201111$21,887$21,887
199611$3,150$3,150
198210$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: Charles County

Charles County has 1,021 weather events in the NCEI record since 1950 (28 in the last 12 months), 24 federal disaster declarations, and an overall National Risk Index rating of "Relatively Low". Flood-type events recorded in the county: 90; hurricane-strength tracks within 50 miles: 1.

Hail: 97 · Tornado: 28 · Flood: 90 · Wind: 482 · Winter: 121 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 20640?

8 claims since 1978 in the OpenFEMA NFIP claims file, 4 of them with a payment.

How much has the NFIP paid out in ZIP 20640?

$50K across 4 paid claims (building, contents and increased-cost-of-compliance payments combined), about $13K per paid claim.

Which year had the most flood claims in 20640?

2018, with 2 claims and $0 paid.

What county is ZIP 20640 in?

Most claims in this ZIP carry the county code for Charles 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.