County Hazards

States › Maryland › Charles County › ZIP 20603

ZIP code 20603, 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.

ZIP code 20603, in Charles County, Maryland, has 37 National Flood Insurance Program claims in the OpenFEMA record since 1978, 20 of them paid for a total of $229K.

That is 10.2% of the 361 claims recorded across Charles County. The average paid claim in the ZIP is $11K, lower than the county average of $27K and the Maryland average of $23K.

FEMA counts 3 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 547 residential flood policies in force, covering 0.9% of residential structures.

37NFIP claims since 1978
20paid claims
$229Ktotal paid
$11Kaverage paid claim

Compared with the county and state

MeasureZIP 20603CharlesMarylandUS
Claims since 19783736125,3762,680,429
Share of claims paid54%67%59%78%
Average paid claim$11K$27K$23K$43K
Share of county claims10.2%100%——
Repetitive-loss properties3341,305—

Claims by year of loss

197820022026
NFIP claims in ZIP 20603 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s2$5,645
1980s2$5,668
1990s0$0
2000s4$613
2010s21$196,722
2020s8$20,493
Year of lossClaimsPaid claimsAmount paidAverage paid
202143$12,416$4,139
202042$8,077$4,038
201932$7,240$3,620
201882$64,045$32,022
201611$1,495$1,495
201432$15,322$7,661
201321$4,198$4,198
201210$0—
201132$104,423$52,211
200821$613$613
200610$0—
200310$0—
198311$2,720$2,720
198211$2,948$2,948
197911$4,638$4,638
197811$1,007$1,007

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 20603?

37 claims since 1978 in the OpenFEMA NFIP claims file, 20 of them with a payment.

How much has the NFIP paid out in ZIP 20603?

$229K across 20 paid claims (building, contents and increased-cost-of-compliance payments combined), about $11K per paid claim.

Which year had the most flood claims in 20603?

2018, with 8 claims and $64K paid.

What county is ZIP 20603 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 1 Oct 2026. See the guide to redacted NFIP claims and the methodology.