Sumner’s biggest natural hazard is inland flooding
Most of the natural-hazard damage FEMA expects in Sumner comes from inland flooding, and overall the risk is moderate for a U.S. community.
What stands out about Sumner’s weather risks
Read from FEMA’s records below. The page puts what stands out first.
Sumner and its neighbors
Sumner has the lowest rating of the 4 towns around it. Tap a town to see its hazards.
| Town | Rating | Mostly | Flood claims |
|---|---|---|---|
| Ganeer | Very high | inland flooding | 59 |
| Yellowhead | Very high | inland flooding | 0 |
| Manteno | High | inland flooding | 2 |
| Sumner | Moderate | inland flooding | 0 |
Rating = expected yearly storm and flood damage as a share of what’s there, vs. U.S. communities. Flood claims = paid federal flood insurance claims on record.
Does Sumner flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Sumner. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Sumner isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Kankakee County.How exposed is Sumner?
FEMA expects yearly storm and flood damage to homes and buildings here to be higher than in 49% of U.S. communities, mostly from inland flooding and cold waves.
Calmer than 1,761 of the 2,886 Illinois towns we cover.
Sumner covers 1 census tract, combined by population.
What Sumner faces
Each hazard’s share of the damage FEMA expects here, and how it compares with the rest of the country.
Inland flooding
Cold waves
Tornadoes
Federal disasters declared here
None of the disasters declared for Kankakee County shows FEMA aid or repair money reaching Sumner itself in FEMA’s records.
Kankakee County has had 5 natural disasters declared since 1953, most often winter storms and hurricanes.
Get ready for what Sumner actually faces
A short kit for its top hazards, 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.
- Let faucets drip so pipes don’t freeze.
- Know where your water shutoff is.
- Never heat the house with the oven or a grill.
- 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.
What these numbers can and can’t tell you
- An average, not a forecast. FEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.
- Compared by rate. “Higher than N%” compares yearly damage as a share of what’s there, so a big city isn’t rated riskier just for having more buildings.
- Money that reached town. Flood claims are matched to Sumner’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Sumner.
- It follows property value. FEMA’s model weighs damage to buildings, so a place that recently lost many homes can rate lower than it feels. Across Sumner, expected losses total about $1.2M a year, counting buildings, people and crops.
Storm stories
Memories, warnings and help from neighbors in Sumner.
Your answer becomes a post in Town Square.
Sources: FEMA National Risk Index (December 2025); 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. Census tracts: U.S. Census Bureau. Preparedness tips: Ready.gov. An average of past damage, not a forecast.