Photo: Canadian2006 · CC BY-SA 3.0FEMA expects less hazard damage per building in Slippery Rock Township than in 60% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Slippery Rock Township gets a B for hazard risk: lower expected damage per building than 60% of U.S. towns, #664 of 1,037 in Pennsylvania. Most of that expected damage is river and rain flooding (93%). 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 Slippery Rock 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
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 Slippery Rock Township’s grade
River and rain flooding is 93% of the building damage FEMA expects in Slippery Rock Township, and Slippery Rock Township’s rate of river and rain flooding damage is higher than 67% of U.S. census tracts.
B #664 of 1,037 in Pennsylvania; lower expected damage per building than 60% of U.S. towns (21,298).
All of Slippery Rock Township’s residents live in one census tract; the figures are that tract’s.
The typical Pennsylvania town has lower expected damage than 71% of U.S. towns; within the state, Slippery Rock Township has more expected damage per building than 64% of Pennsylvania towns.
In dollars, FEMA expects about $587K a year in losses across Slippery Rock Township: $529K to buildings, the rest to people and crops.
Does Slippery Rock Township flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Slippery Rock Township. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Slippery Rock 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: Lawrence County.The storms Slippery Rock Township remembers
None of the 9 disasters declared for Lawrence County shows FEMA aid or repair money reaching Slippery Rock Township itself in FEMA’s records, so these are its biggest flood-claim years.
Lawrence County has had 9 natural disasters declared by the President since 1953, most often severe storms, then hurricanes and tropical storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Slippery Rock Township and its neighbors
Slippery Rock Township has the lowest expected damage per building of the 5 graded towns here. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Slippery Rock Township | Bless damage than 60% | river and rain flooding | 0 |
| Shenango Township | B−less damage than 52% | river and rain flooding | 9 |
| Scott Township | C+more damage than 59% | river and rain flooding | — |
| Perry Township | Cmore damage than 70% | river and rain flooding | — |
| Wayne Township | Cmore damage than 71% | river and rain flooding | 4 |
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 Slippery Rock 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.
- 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 Slippery Rock Township
Is Slippery Rock Township at risk for natural disasters?
On FEMA’s National Risk Index, Slippery Rock Township has lower expected damage per building than 60% of U.S. towns: B for hazard risk, #664 of 1,037 in Pennsylvania. Most of the expected damage is river and rain flooding (93%). The figures are for the one census tract the town shares with its neighbors. This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Slippery Rock 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 Lawrence County, 15% of homes in mapped flood zones carry federal flood insurance, and 0.4% of all homes do.
How much is flood insurance in Slippery Rock Township?
FEMA’s Community Rating System list shows no discount for Slippery Rock Township’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
Is Slippery Rock Township at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (93%), and Slippery Rock Township’s rate for it is higher than 67% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Slippery Rock Township.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Slippery Rock 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.