Flood insurance in Island County, Washington

How many buildings are insured against floods, what policies cost, and how much FEMA's flood insurance program has paid out, from official NFIP records.

Policies as of 5 September 2026Source: FEMA OpenFEMA
Active flood policies
978
NFIP policies in force
Average yearly premium
$526
$603 below the Washington average
Claims paid since 1978
$4.1M
across 279 claims
Policies in high-risk zones
86%
zones A and V, where known

Flood claims paid per year

NFIP claims paid in Island County, 2000–2025

The three costliest years. The worst was 2022, with $971 thousand paid on 38 claims.

Insured buildings by flood zone

Zone V / VE1%
Coastal high-hazard areas with wave action. Flood insurance is required with a federally backed mortgage.
Zone A / AE84%
High-risk areas with a 1% chance of flooding each year. Insurance is required with a federally backed mortgage.
Zone X, B, C14%
Moderate to low risk. Insurance is optional, and policies are usually much cheaper.

Zone not reported for 46% of policies; shares are of policies with a known zone.

Costliest flood events

Named events by NFIP claims paid in Island County

EventYearClaimsPaid
Flooding19969$263 thousand
2025-12-AtmosphericRiver20252$34 thousand
Flooding19903$8,260
Flooding19975$5,862
Winter storm20071$0

Flood insurance by ZIP code

ZIP codes in Island County with at least 50 policies

ZIPPoliciesAvg premiumClaims since 1978Paid
98282237$51698$1.8 million
98277178$50438$698 thousand
98236177$57153$683 thousand
98249138$54342$401 thousand
9825398$49414$290 thousand
9826086$53628$297 thousand
9823965$4977$18 thousand

Common questions

How much does flood insurance cost in Island County?

The average NFIP flood insurance policy in Island County costs about $526 a year. The Washington average is $1,129. Your own premium depends on your building's flood risk, elevation and the coverage you choose.

How many homes have flood insurance in Island County?

There are about 978 National Flood Insurance Program policies in force in Island County, according to FEMA's latest policy data. Private flood policies are not included.

How often does Island County flood?

Since 1978, NFIP policyholders in Island County have filed 279 flood claims, with $4.1 million paid out. 80 of those claims were in the last 10 years.

Does homeowners insurance cover flooding?

No. Standard homeowners and renters insurance policies exclude flood damage. You need a separate flood policy from the NFIP or a private insurer.

How long until a new flood policy starts?

NFIP policies usually have a 30-day waiting period, so buying when a storm is already forecast is normally too late. Exceptions apply, for example when a lender requires the policy at closing.

How to get flood insurance

Most flood policies are sold through the National Flood Insurance Program by regular insurance agents. Ask the agent who handles your home or car insurance, or find one through FloodSmart.gov, FEMA's official flood insurance site. Private flood insurers also sell policies in many areas and are worth comparing.

Other counties in Washington