Photo: Paul Sableman · CC BY 2.0On FEMA’s figures, Collinsville Township faces about as much hazard damage per building as the typical U.S. town, mostly from river and rain flooding
On FEMA’s National Risk Index, Collinsville Township gets a B− for hazard risk: higher expected damage per building than 54% of U.S. towns, #385 of 768 in Illinois. Most of that expected damage is river and rain flooding (52%), then earthquakes (28%). Flood insurance has paid 41 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 Collinsville Township 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
Earthquakes
Tornadoes
Hail
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 Collinsville Township’s grade
River and rain flooding is 52% of the building damage FEMA expects in Collinsville Township, and Collinsville Township’s rate of river and rain flooding damage is lower than 60% of U.S. census tracts. Next is earthquakes at 28% (higher than 83% of U.S. census tracts).
B− #385 of 768 in Illinois; higher expected damage per building than 54% of U.S. towns (21,298).
Collinsville Township’s residents live in 9 census tracts; FEMA’s figures are combined by where they live.
The typical Illinois town has higher expected damage than 54% of U.S. towns; within the state, Collinsville Township has more expected damage per building than 50% of Illinois towns.
In dollars, FEMA expects about $16.9M a year in losses across Collinsville Township: $8.7M to buildings, the rest to people and crops.
Does Collinsville Township flood? Sometimes: 41 flood claims since 1978
Every paid claim on a federal flood insurance policy in Collinsville Township, from FEMA’s records: 2.5 per 1,000 homes, fewer than 56% of the 13,809 U.S. towns with a flood insurance record.
- The Midwest Flooding2 claims · $26K
- Hurricane Ike1 claim · $98K
Collinsville Township isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Madison County.The storms Collinsville Township remembers
None of the 13 disasters declared for Madison County shows FEMA aid or repair money reaching Collinsville Township itself in FEMA’s records, so these are its biggest flood-claim years.
- 197912 flood claims paidThe year of Severe Storms and Flooding, declared for Madison County
- 19835 flood claims paidThe year of Severe Storms, Tornadoes and Flooding, declared for Madison County
- 19814 flood claims paidNo declaration for the county that year
Madison County has had 13 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 Collinsville Township after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Collinsville Township archive →Collinsville Township and its neighbors
Collinsville Township is 4th of the 8 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 |
|---|---|---|---|
| Glen Carbon | Bless damage than 56% | river and rain flooding | 1 |
| Edwardsville Township | Bless damage than 55% | river and rain flooding | 40 |
| Maryville | B−less damage than 54% | river and rain flooding | 5 |
| Collinsville Township | B−more damage than 54% | river and rain flooding | 41 |
| Jarvis Township | C+more damage than 60% | river and rain flooding | 3 |
| Troy | C+more damage than 60% | river and rain flooding | 1 |
| Caseyville Township | Cmore damage than 67% | river and rain flooding | 51 |
| Nameoki Township | Dmore damage than 91% | river and rain flooding | 59 |
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 Collinsville Township 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.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- 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.
- Park in a garage or under cover when storms are forecast.
- Stay away from windows while it falls.
- Photograph roof and car damage for your insurer.
- 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 Collinsville Township
Is Collinsville Township at risk for natural disasters?
On FEMA’s National Risk Index, Collinsville Township has higher expected damage per building than 54% of U.S. towns: B− for hazard risk, #385 of 768 in Illinois. Most of the expected damage is river and rain flooding (52%) and earthquakes (28%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Collinsville Township flood?
Flood insurance has paid 41 claims in Collinsville Township since 1978, $631K in all, or 2.5 per 1,000 homes, fewer than 56% of U.S. towns with a flood insurance record. The most claims came from Midwest Flooding (2).
Is Collinsville Township 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 Madison County, 0.8% of all homes carry federal flood insurance.
How much is flood insurance in Collinsville Township?
FEMA’s Community Rating System list shows no discount for Collinsville Township’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 Collinsville Township?
By flood claims, Midwest Flooding: 2 paid, $26K.
Is Collinsville Township at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (52%), and Collinsville Township’s rate for it is lower than 60% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Collinsville Township.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Collinsville Township’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.