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Stevenson Peters HouseStevenson Peters House · Photo: Aesopposea · CC BY-SA 3.0
B−Hazard risk
Natural hazards in Walnut Township · FEMA

FEMA expects about as much hazard damage per building in Walnut Township as in the typical U.S. town, mostly from river and rain flooding

On FEMA’s National Risk Index, Walnut Township gets a B− for hazard risk: higher expected damage per building than 52% of U.S. towns, #828 of 993 in Ohio. Most of that expected damage is river and rain flooding (85%). FEMA’s files show no paid flood insurance claims here.

River and rain flooding 85%Tornadoes 7%Hail 2%

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

more than 52%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade#828 of 993 in Ohio
Hazard risk
B−#828 of 993
in Ohio · higher than 52% of U.S. towns
Main hazard
River and rain flooding
85% of expected building damage
Flood claims
0
paid since 1978 · $0
Disasters paid out here
0
of 11 declared for Pickaway County
By hazard

What Walnut 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

85%of expected building damage
Above average · higher than 70% of U.S. census tracts
Recorded about 2 times a year in the area

Tornadoes

7%of expected building damage
Above average · higher than 66% of U.S. census tracts
Smaller shares here
 Hail Ice storms Strong wind Earthquakes Winter storms Lightning Hurricanes Wildfire Cold waves Heat waves Landslides
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts drought at 10% of Walnut Township’s expected losses. Drought does little damage to buildings (0.0%), so they aren’t part of the grade.

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.

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Hazard risk grade

What’s behind Walnut Township’s grade

River and rain flooding is 85% of the building damage FEMA expects in Walnut Township, and Walnut Township’s rate of river and rain flooding damage is higher than 70% of U.S. census tracts. Ice storms add 2%, at a rate in the top 9% of U.S. census tracts.

Where Walnut Township sits
Walnut Township
Least damageMiddleMost damage

B− #828 of 993 in Ohio; higher expected damage per building than 52% of U.S. towns (21,298).

All of Walnut Township’s residents live in one census tract; the figures are that tract’s.

What drives the damage to buildings
River and rain flooding85%Tornadoes7%Everything else8%

The typical Ohio town has lower expected damage than 79% of U.S. towns; within the state, Walnut Township has more expected damage per building than 83% of Ohio towns.

In dollars, FEMA expects about $1.2M a year in losses across Walnut Township: $937K to buildings, the rest to people and crops.

Shared tract.All of Walnut Township’s 2,962 residents (2020 census) live in one census tract, which it shares with Madison township (1,712 residents). FEMA publishes its model by tract, so the rate and the hazard mix are the tract’s, the same for all of them. The flood claims below are the township’s own.
A shared figure. The grade describes the whole tract, not each street in it, and FEMA’s model is an average year for today’s buildings, not a record: the claims below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Walnut Township flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Walnut Township. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Walnut 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: Pickaway County.
Disasters

The storms Walnut Township remembers

None of the 11 disasters declared for Pickaway County shows FEMA aid or repair money reaching Walnut Township itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in Walnut TownshipPickaway County only

Pickaway County has had 11 natural disasters declared by the President since 1953, most often severe storms, then winter storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Next door

Walnut Township and its neighbors

Walnut Township is 7th of the 9 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Harrison Township: hazard risk CSouth Bloomfield: hazard risk BJackson Township: hazard risk B+Amanda Township: hazard risk ACircleville Township: hazard risk BMadison Township: hazard risk B−Ashville: hazard risk C−Washington Township: hazard risk A+Harrison TownshipSouth BloomfieldJackson TownshipAmanda TownshipCircleville TownshipMadison TownshipAshvilleWashington TownshipWalnut Township
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Washington TownshipA+less damage than 97%river and rain flooding—
Amanda TownshipAless damage than 91%river and rain flooding—
Jackson TownshipB+less damage than 66%river and rain flooding—
South BloomfieldBless damage than 64%river and rain flooding—
Circleville TownshipBless damage than 60%river and rain flooding12
Madison TownshipB−more damage than 52%river and rain flooding—
Walnut TownshipB−more damage than 52%river and rain flooding0
Harrison TownshipCmore damage than 69%river and rain flooding—
AshvilleC−more damage than 80%river and rain flooding—

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.

Be ready

Get ready for what Walnut 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.

When the river rises
  • 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.
More from Ready.gov ↗
Tornado warnings
  • 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.
More from Ready.gov ↗
Before you buy or rent
  • 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.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in Walnut Township

Is Walnut Township at risk for natural disasters?

On FEMA’s National Risk Index, Walnut Township has higher expected damage per building than 52% of U.S. towns: B− for hazard risk, #828 of 993 in Ohio. Most of the expected damage is river and rain flooding (85%) and tornadoes (7%). 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 Walnut 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 Pickaway County, 13% of homes in mapped flood zones carry federal flood insurance, and 0.3% of all homes do.

How much is flood insurance in Walnut Township?

FEMA’s Community Rating System list shows no discount for Walnut Township’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.

Is Walnut Township at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (85%), and Walnut Township’s rate for it is higher than 70% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Walnut Township.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Walnut 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.