Photo: John Phelan · CC BY-SA 4.0More hazard damage per building is expected in Canton than in 75% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Canton gets a C− for hazard risk: higher expected damage per building than 75% of U.S. towns, #124 of 155 in Connecticut. Most of that expected damage is river and rain flooding (92%). Flood insurance has paid 21 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 Canton 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
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 Canton’s grade
River and rain flooding is 92% of the building damage FEMA expects in Canton, and Canton’s rate of river and rain flooding damage is higher than 87% of U.S. census tracts.
C− #124 of 155 in Connecticut; higher expected damage per building than 75% of U.S. towns (21,298).
Canton’s residents live in 2 census tracts; FEMA’s figures are combined by where they live.
The typical Connecticut town has higher expected damage than 62% of U.S. towns; within the state, Canton has more expected damage per building than 80% of Connecticut towns.
In dollars, FEMA expects about $4.2M a year in losses across Canton: $4.0M to buildings, the rest to people and crops.
Does Canton flood? Sometimes: 21 flood claims since 1978
Every paid claim on a federal flood insurance policy in Canton, from FEMA’s records: 4.6 per 1,000 homes, more than 58% of the 13,809 U.S. towns with a flood insurance record.
- Hurricane Irene1 claim · $22K
Canton isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: the county.Canton and its neighbors
Canton is 5th of the 7 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Burlington | C+more damage than 58% | river and rain flooding | 5 |
| Granby | C+more damage than 61% | river and rain flooding | 13 |
| Simsbury | Cmore damage than 67% | river and rain flooding | 73 |
| Avon | Cmore damage than 68% | river and rain flooding | 10 |
| Canton | C−more damage than 75% | river and rain flooding | 21 |
| Barkhamsted | C−more damage than 78% | river and rain flooding | — |
| New Hartford | Dmore damage than 86% | river and rain flooding | 19 |
| Collinsville | — | a Census area inside a town; graded with the town | |
Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.
Get ready for what Canton 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.
- 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 Canton
Is Canton at risk for natural disasters?
On FEMA’s National Risk Index, Canton has higher expected damage per building than 75% of U.S. towns: C− for hazard risk, #124 of 155 in Connecticut. Most of the expected damage is river and rain flooding (92%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Canton flood?
Flood insurance has paid 21 claims in Canton since 1978, $123K in all, or 4.6 per 1,000 homes, more than 58% of U.S. towns with a flood insurance record. 6 properties have flooded more than once. The most claims came from Hurricane Irene (1).
Is Canton 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 the county, 32% of homes in mapped flood zones carry federal flood insurance, and 0.5% of all homes do.
How much is flood insurance in Canton?
FEMA’s Community Rating System list shows no discount for Canton’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 Canton?
By flood claims, Hurricane Irene: 1 paid, $22K.
Is Canton at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (92%), and Canton’s rate for it is higher than 87% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Canton.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Canton’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.