Flood insurance in Grayson County, Texas

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
336
NFIP policies in force
Average yearly premium
$983
$33 below the Texas average
Claims paid since 1978
$18.3M
across 743 claims
Policies in high-risk zones
47%
zones A and V, where known

Flood claims paid per year

NFIP claims paid in Grayson County, 2000–2025

The three costliest years. The worst was 2007, with $6.2 million paid on 125 claims.

Insured buildings by flood zone

Zone V / VE0%
Coastal high-hazard areas with wave action. Flood insurance is required with a federally backed mortgage.
Zone A / AE47%
High-risk areas with a 1% chance of flooding each year. Insurance is required with a federally backed mortgage.
Zone X, B, C53%
Moderate to low risk. Insurance is optional, and policies are usually much cheaper.

Zone not reported for 52% of policies; shares are of policies with a known zone.

Costliest flood events

Named events by NFIP claims paid in Grayson County

EventYearClaimsPaid
Thunderstorms2007112$5.9 million
Early summer storms201550$3.1 million
Flooding198196$802 thousand
Flooding19909$259 thousand
Tropical Storm Bill20151$83 thousand

Flood insurance by ZIP code

ZIP codes in Grayson County with at least 50 policies

ZIPPoliciesAvg premiumClaims since 1978Paid
7509295$1,249323$8.1 million

Common questions

How much does flood insurance cost in Grayson County?

The average NFIP flood insurance policy in Grayson County costs about $983 a year. The Texas average is $1,016. Your own premium depends on your building's flood risk, elevation and the coverage you choose.

How many homes have flood insurance in Grayson County?

There are about 336 National Flood Insurance Program policies in force in Grayson County, according to FEMA's latest policy data. Private flood policies are not included.

How often does Grayson County flood?

Since 1978, NFIP policyholders in Grayson County have filed 743 flood claims, with $18.3 million paid out. 74 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.

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