Photo: Carmen Shields from United States · CC BY 2.0Storms, floods and disasters in Gwynn
Gwynn isn’t graded for hazard risk: Gwynn has 514 residents; we grade towns of 1,000 or more.
What Gwynn faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
Coastal flooding
River and rain flooding
Hurricanes
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
Does Gwynn flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Gwynn. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Gwynn isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Mathews County.1 federal disaster brought FEMA money to Gwynn
Disasters that paid out in Gwynn itself (aid to households or repair grants to Gwynn), newest first, with that year’s flood claims.
- 2003Hurricane Isabel66 households applied for aid$71K aid approved
Mathews County has had 14 natural disasters declared by the President since 1953, most often hurricanes and tropical storms, then winter storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of Gwynn after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Gwynn archive →Get ready for what Gwynn faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Know your evacuation zone and the way off the coast.
- Storm surge comes fast: leave when you’re told, not when the water arrives.
- Move cars to high ground before king tides and nor’easters.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- The season runs June through November and peaks from mid-August to mid-October.
- Bring in porch furniture and anything the wind can throw.
- Fill the gas tank and charge phones before the storm arrives.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Gwynn
Is Gwynn in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Mathews County, 50% of homes in mapped flood zones carry federal flood insurance, and 20.2% of all homes do.
How much is flood insurance in Gwynn?
FEMA’s Community Rating System list shows no discount for Gwynn’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in Gwynn?
By FEMA money that reached Gwynn, Hurricane Isabel (2003): 66 households applied for aid, $71K approved.
Storm stories
Memories, warnings and help from neighbors in Gwynn.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Gwynn’s residents lived in the 2020 census; OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.