County Hazards

States › South Dakota › Day County › ZIP 57273

ZIP code 57273, Day County, South Dakota

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 228 NFIP claims for ZIP 57273 (Day County, South Dakota), with $3.6M paid on 174 claims since 1978.

That is 88.7% of the 257 claims recorded across Day County. The average paid claim in the ZIP is $21K, close to the county average of $21K and the South Dakota average of $21K.

FEMA counts 14 repetitive-loss properties and 2 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 12 residential flood policies in force, covering 0.3% of residential structures.

228NFIP claims since 1978
174paid claims
$3.6Mtotal paid
$21Kaverage paid claim

Compared with the county and state

MeasureZIP 57273DaySouth DakotaUS
Claims since 19782282574,0162,680,429
Share of claims paid76%77%75%78%
Average paid claim$21K$21K$21K$43K
Share of county claims88.7%100%——
Repetitive-loss properties1416250—

Claims by year of loss

197820022026
NFIP claims in ZIP 57273 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s0$0
1980s0$0
1990s110$1,123,876
2000s26$172,595
2010s87$2,154,001
2020s5$143,949
Year of lossClaimsPaid claimsAmount paidAverage paid
202611$28,169$28,169
202042$115,781$57,890
201210$0—
20115445$1,695,030$37,667
20103227$458,971$16,999
200392$6,544$3,272
200242$56,165$28,082
2001108$109,886$13,736
200030$0—
19997157$814,805$14,295
19982617$187,038$11,002
199755$36,665$7,333
199522$1,459$729
199466$83,909$13,985

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: Day County

Day County has 747 weather events in the NCEI record since 1950 (37 in the last 12 months), 25 federal disaster declarations, and an overall National Risk Index rating of "Very Low". Flood-type events recorded in the county: 39; hurricane-strength tracks within 50 miles: 0.

Hail: 207 · Tornado: 33 · Flood: 39 · Wind: 240 · Winter: 155 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 57273?

228 claims since 1978 in the OpenFEMA NFIP claims file, 174 of them with a payment.

How much has the NFIP paid out in ZIP 57273?

$3.6M across 174 paid claims (building, contents and increased-cost-of-compliance payments combined), about $21K per paid claim.

Which year had the most flood claims in 57273?

1999, with 71 claims and $815K paid.

What county is ZIP 57273 in?

Most claims in this ZIP carry the county code for Day County, South Dakota; 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.