County Hazards

States › New York › Nassau County › ZIP 11598

ZIP code 11598, Nassau County, New York

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 1,151 NFIP claims for ZIP 11598 (Nassau County, New York), with $53M paid on 970 claims since 1978.

That is 2.2% of the 51,523 claims recorded across Nassau County. The average paid claim in the ZIP is $55K, close to the county average of $51K and the New York average of $40K.

FEMA counts 140 repetitive-loss properties and 5 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 35,824 residential flood policies in force, covering 9.7% of residential structures.

1,151NFIP claims since 1978
970paid claims
$53Mtotal paid
$55Kaverage paid claim

Compared with the county and state

MeasureZIP 11598NassauNew YorkUS
Claims since 19781,15151,523175,4302,680,429
Share of claims paid84%87%82%78%
Average paid claim$55K$51K$40K$43K
Share of county claims2.2%100%——
Repetitive-loss properties1406,49119,079—

Claims by year of loss

197820022026
NFIP claims in ZIP 11598 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s17$38,426
1980s25$34,511
1990s22$34,667
2000s158$1,228,743
2010s830$49,801,035
2020s99$1,897,717
Year of lossClaimsPaid claimsAmount paidAverage paid
202432$24,171$12,086
20238774$1,845,431$24,938
202220$0—
202173$28,116$9,372
201921$9,311$9,311
201821$64,514$64,514
201510$0—
201455$67,582$13,516
201311$6,304$6,304
2012635591$48,292,572$81,713
2011140102$1,159,703$11,370
20104427$201,049$7,446
200842$4,702$2,351
20071917$133,349$7,844
2005131107$1,088,730$10,175
200310$0—
200210$0—
200111$1,477$1,477
200011$485$485
199932$1,691$846
199810$0—
199722$14,109$7,054
199642$11,342$5,671
199421$3,736$3,736
199310$0—
199291$3,788$3,788
198930$0—
198441$2,976$2,976
198362$7,224$3,612
198210$0—
198144$10,197$2,549
198076$14,113$2,352
1979108$20,743$2,593
197876$17,683$2,947

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: Nassau County

Nassau County has 700 weather events in the NCEI record since 1950 (7 in the last 12 months), 31 federal disaster declarations, and an overall National Risk Index rating of "Relatively High". Flood-type events recorded in the county: 227; hurricane-strength tracks within 50 miles: 6.

Hail: 81 · Tornado: 9 · Flood: 227 · Wind: 278 · Winter: 34 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 11598?

1,151 claims since 1978 in the OpenFEMA NFIP claims file, 970 of them with a payment.

How much has the NFIP paid out in ZIP 11598?

$53M across 970 paid claims (building, contents and increased-cost-of-compliance payments combined), about $55K per paid claim.

Which year had the most flood claims in 11598?

2012, with 635 claims and $48M paid.

What county is ZIP 11598 in?

Most claims in this ZIP carry the county code for Nassau County, New York; 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.