Photo: Bernardgeorgeh · CC BY-SA 4.0Storms, floods and disasters in Gilbert
Gilbert isn’t graded for hazard risk: Gilbert has 751 residents; we grade towns of 1,000 or more.
What Gilbert faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
River and rain flooding
Hurricanes
Tornadoes
Earthquakes
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 Gilbert flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Gilbert. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Gilbert isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Lexington County.2 federal disasters brought FEMA money to Gilbert
Disasters that paid out in Gilbert itself (aid to households or repair grants to the Town of Gilbert), newest first, with that year’s flood claims.
- 2024Hurricane Helene655 households applied for aid$337K aid approved
- 2015Severe Storms and Flooding119 households applied for aid$79K aid approved
Lexington County has had 17 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 Gilbert after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Gilbert archive →Get ready for what Gilbert faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- 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.
- Pick your spot now: the lowest floor, an inside room, no windows.
- A watch means be ready; a warning means take cover now.
- Keep shoes and a flashlight by the bed.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- 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 Gilbert
Is Gilbert 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 Lexington County, 67% of homes in mapped flood zones carry federal flood insurance, and 1.2% of all homes do.
How much is flood insurance in Gilbert?
FEMA’s Community Rating System list shows no discount for Gilbert’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 Gilbert?
By FEMA money that reached Gilbert, Hurricane Helene (2024): 655 households applied for aid, $337K approved.
Storm stories
Memories, warnings and help from neighbors in Gilbert.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Gilbert’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.