Photo: Brian Stansberry · CC BY 4.0FEMA expects more hazard damage per building in Trenton than in 88% of U.S. towns, mostly from earthquakes
On FEMA’s National Risk Index, Trenton gets a D for hazard risk: higher expected damage per building than 88% of U.S. towns, #171 of 177 in Tennessee. Most of that expected damage is earthquakes (66%), then river and rain flooding (20%). Flood insurance has paid 84 claims here since 1978.
Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded
What stands out about Trenton’s natural hazards
From FEMA’s model and FEMA’s records, below.
What Trenton faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
Earthquakes
River and rain flooding
Tornadoes
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.
What’s behind Trenton’s grade
Earthquakes are 66% of the building damage FEMA expects in Trenton, and Trenton’s rate of earthquakes damage is in the top 5% of U.S. census tracts. Tornadoes add 9%, at a rate in the top 3% of U.S. census tracts.
D #171 of 177 in Tennessee; higher expected damage per building than 88% of U.S. towns (21,298).
Trenton’s residents live in 3 census tracts; FEMA’s figures are combined by where they live.
The typical Tennessee town has higher expected damage than 53% of U.S. towns; within the state, Trenton has more expected damage per building than 97% of Tennessee towns.
In dollars, FEMA expects about $4.9M a year in losses across Trenton: $2.1M to buildings, the rest to people and crops.
Does Trenton flood? Sometimes: 84 flood claims since 1978
Every paid claim on a federal flood insurance policy in Trenton, from FEMA’s records: 39.2 per 1,000 homes, more than 91% of the 13,809 U.S. towns with a flood insurance record.
- The Late spring storms20 claims · $979K
- The Late winter severe storms2 claims · $44K
Trenton isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Gibson County.5 federal disasters brought FEMA money to Trenton
Disasters that paid out in Trenton itself (aid to households or repair grants to the City of Trenton), newest first, with that year’s flood claims.
- 2011Severe Storms, Tornadoes, Straight-line Winds, and Associated Flooding$20K to the City of Trenton for repairs
- 2011Severe Storms, Straight-line Winds, Tornadoes, and Flooding34 households applied for aid$16K aid approved$22K to the City of Trenton for repairs
- 2010Severe Storms, Flooding, Straight-line Winds, and Tornadoes198 households applied for aid$743K aid approved$41K to the City of Trenton for repairs20 flood claims paid that year
- 2006Severe Storms and Tornadoes12 households applied for aid$5K aid approved1 flood claim paid that year
- 2003Severe Storms, Tornadoes, and Flooding11 households applied for aid$1K aid approved
Gibson County has had 21 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of Trenton after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Trenton archive →Get ready for what Trenton faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- 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.
- 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.
- 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 Trenton
Is Trenton at risk for natural disasters?
On FEMA’s National Risk Index, Trenton has higher expected damage per building than 88% of U.S. towns: D for hazard risk, #171 of 177 in Tennessee. Most of the expected damage is earthquakes (66%) and river and rain flooding (20%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Trenton flood?
Flood insurance has paid 84 claims in Trenton since 1978, $1.7M in all, or 39.2 per 1,000 homes, more than 91% of U.S. towns with a flood insurance record. 12 properties have flooded more than once. The most claims came from Late spring storms (20).
Is Trenton 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 Gibson County, 14% of homes in mapped flood zones carry federal flood insurance, and 0.5% of all homes do.
How much is flood insurance in Trenton?
FEMA’s Community Rating System list shows no discount for Trenton’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 Trenton?
By FEMA money that reached Trenton, Severe Storms, Flooding, Straight-line Winds, and Tornadoes (2010): 198 households applied for aid, $743K approved, and $41K to the City of Trenton for repairs. By flood claims, Late spring storms: 20 paid, $979K.
Is Trenton at risk from earthquakes?
It is the largest share of the building damage FEMA expects here (66%), and Trenton’s rate for it is in the top 5% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Trenton.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Trenton’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.