FEMA puts Silvis’s expected hazard damage per building below that of 82% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Silvis gets an A− for hazard risk: lower expected damage per building than 82% of U.S. towns, #66 of 768 in Illinois. Most of that expected damage is river and rain flooding (66%), then tornadoes (15%). FEMA’s files show no paid flood insurance claims here.
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 Silvis 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
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 Silvis’ grade
River and rain flooding is 66% of the building damage FEMA expects in Silvis, and Silvis’ rate of river and rain flooding damage is lower than 74% of U.S. census tracts. Next is tornadoes at 15% (higher than 79% of U.S. census tracts).
A− #66 of 768 in Illinois; lower expected damage per building than 82% of U.S. towns (21,298).
Silvis’ residents live in 3 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, Silvis has less expected damage per building than 92% of Illinois towns.
In dollars, FEMA expects about $2.0M a year in losses across Silvis: $694K to buildings, the rest to people and crops.
Does Silvis flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Silvis. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Silvis isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Rock Island County.3 federal disasters brought FEMA money to Silvis
Disasters that paid out in Silvis itself (aid to households or repair grants to the City of Silvis), newest first, with that year’s flood claims.
- 2013Severe Storms, Straight-line Winds, and Flooding11 households applied for aid$9K aid approved
- 2011Severe Winter Storm and Snowstorm$15K to the City of Silvis for repairs
- 2008Severe Storms and Flooding2 households applied for aid$4K aid approved$7K to the City of Silvis for repairs
Rock Island County has had 12 natural disasters declared by the President since 1953, most often floods, then severe storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of Silvis after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Silvis archive →Silvis and its neighbors
Silvis has the lowest expected damage per building of the 3 graded towns here. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Silvis | A−less damage than 82% | river and rain flooding | 0 |
| Carbon Cliff | Bless damage than 58% | river and rain flooding | 66 |
| East Moline | B−less damage than 52% | river and rain flooding | 155 |
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 Silvis 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.
- 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 Silvis
Is Silvis at risk for natural disasters?
On FEMA’s National Risk Index, Silvis has lower expected damage per building than 82% of U.S. towns: A− for hazard risk, #66 of 768 in Illinois. Most of the expected damage is river and rain flooding (66%) and tornadoes (15%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Silvis 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 Rock Island County, 24% of homes in mapped flood zones carry federal flood insurance, and 1.3% of all homes do.
How much is flood insurance in Silvis?
FEMA’s Community Rating System list shows no discount for Silvis’ 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 Silvis?
By FEMA money that reached Silvis, Severe Winter Storm and Snowstorm (2011): $15K to the City of Silvis for repairs.
Is Silvis at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (66%), and Silvis’ rate for it is lower than 74% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Silvis.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Silvis’ 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.