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Original Springs Hotel and Bathhouse - Okawville IllinoisPhoto: Ian Poellet · CC BY-SA 3.0
DHazard risk
Natural hazards in Okawville Township · FEMA

On FEMA’s figures, Okawville Township faces more hazard damage per building than 86% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, Okawville Township gets a D for hazard risk: higher expected damage per building than 86% of U.S. towns. Most of that expected damage is river and rain flooding (55%), then earthquakes (30%). 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

more than 86%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
By hazard

What Okawville 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

55%of expected building damage
Above average · higher than 77% of U.S. census tracts
Recorded about once every 2 years in the area

Earthquakes

30%of expected building damage
Well above average · higher than 87% of U.S. census tracts

Strong wind

7%of expected building damage
Well above average · in the top 1% of U.S. census tracts
Recorded about 6 times a year in the area
Smaller shares here
 Tornadoes Hail Lightning top 1% Winter storms Ice storms 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 heat waves at 16% of Okawville Township’s expected losses. Heat waves do 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 Okawville Township’s grade

River and rain flooding is 55% of the building damage FEMA expects in Okawville Township, and Okawville Township’s rate of river and rain flooding damage is higher than 77% of U.S. census tracts. Strong wind adds 7%, at a rate in the top 1% of U.S. census tracts.

Where Okawville Township sits
Okawville Township
Least damageMiddleMost damage

D higher expected damage per building than 86% of U.S. towns (21,298).

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

What drives the damage to buildings
River and rain flooding55%Earthquakes30%Strong wind7%Everything else8%

In dollars, FEMA expects about $2.8M a year in losses across Okawville Township: $1.5M to buildings, the rest to people and crops.

Shared tract.All of Okawville Township’s 1,960 residents (2020 census) live in one census tract, which it shares with Okawville village (1,369 residents) and Johannisburg township (500 residents) and Plum Hill township (456 residents) and Venedy township (406 residents) and Addieville village (259 residents) and Venedy village (121 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 Okawville Township flood? No paid flood claims on record

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

of all homes are insured
No community discount

Okawville 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: Washington County.
Disasters

The storms Okawville Township remembers

None of the 6 disasters declared for Washington County shows FEMA aid or repair money reaching Okawville Township itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in Okawville TownshipWashington County only

Washington County has had 6 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.

Next door

Okawville Township and its neighbors

Okawville Township is 2nd of the 2 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Germantown Township: hazard risk C−Venedy Township: not gradedPlum Hill Township: not gradedCovington Township: not gradedGermantown TownshipVenedy TownshipPlum Hill TownshipCovington TownshipOkawville Township
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Germantown TownshipC−more damage than 82%river and rain flooding1
Okawville TownshipDmore damage than 86%river and rain flooding0
Venedy Township—391 residents; we grade 1,000+
Plum Hill Township—388 residents; we grade 1,000+
Covington Township—319 residents; we grade 1,000+

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 Okawville 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 ↗
Earthquakes
  • Drop, cover and hold on.
  • Strap tall furniture and the water heater to the wall.
  • Know how to shut off the gas.
More from Ready.gov ↗
High winds
  • Trim dead limbs over the house and driveway.
  • Tie down trash cans and outdoor furniture.
  • Stay clear of downed lines and call the utility.
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 Okawville Township

Is Okawville Township at risk for natural disasters?

On FEMA’s National Risk Index, Okawville Township has higher expected damage per building than 86% of U.S. towns: D for hazard risk. Most of the expected damage is river and rain flooding (55%) and earthquakes (30%). 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 Okawville 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 Washington County, 0.1% of all homes carry federal flood insurance.

How much is flood insurance in Okawville Township?

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

Is Okawville Township at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (55%), and Okawville Township’s rate for it is higher than 77% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Okawville Township.

Town Square →
Start the conversation

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