County Hazards

States › California › Alameda County › ZIP 94566

ZIP code 94566, Alameda County, California

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 11 NFIP claims for ZIP 94566 (Alameda County, California), with $278K paid on 5 claims since 1978.

That is 1.9% of the 568 claims recorded across Alameda County. The average paid claim in the ZIP is $56K, higher than the county average of $16K and the California average of $21K.

At county level FEMA counts 3,420 residential flood policies in force, covering 0.8% of residential structures.

11NFIP claims since 1978
5paid claims
$278Ktotal paid
$56Kaverage paid claim

Compared with the county and state

MeasureZIP 94566AlamedaCaliforniaUS
Claims since 19781156853,5632,680,429
Share of claims paid45%51%66%78%
Average paid claim$56K$16K$21K$43K
Share of county claims1.9%100%——
Repetitive-loss properties0133,456—

Claims by year of loss

197820022026
NFIP claims in ZIP 94566 by year of loss, 1978 to 2026.
DecadeClaimsPaid
1970s0$0
1980s5$15,139
1990s4$21,661
2000s1$2,201
2010s0$0
2020s1$238,989
Year of lossClaimsPaid claimsAmount paidAverage paid
202211$238,989$238,989
200911$2,201$2,201
199821$21,661$21,661
199610$0—
199510$0—
198921$8,669$8,669
198610$0—
198510$0—
198311$6,470$6,470

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: Alameda County

Alameda County has 241 weather events in the NCEI record since 1950 (17 in the last 12 months), 24 federal disaster declarations, and an overall National Risk Index rating of "Very High". Flood-type events recorded in the county: 179; hurricane-strength tracks within 50 miles: 0.

Hail: 20 · Tornado: 3 · Flood: 179 · Wind: 7 · Winter: 0 — full county page.

Questions and answers

How many flood insurance claims have been filed in ZIP 94566?

11 claims since 1978 in the OpenFEMA NFIP claims file, 5 of them with a payment.

How much has the NFIP paid out in ZIP 94566?

$278K across 5 paid claims (building, contents and increased-cost-of-compliance payments combined), about $56K per paid claim.

Which year had the most flood claims in 94566?

1989, with 2 claims and $9K paid.

What county is ZIP 94566 in?

Most claims in this ZIP carry the county code for Alameda County, California; 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.