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Washington County CourthouseWashington County Courthouse · Photo: Ammodramus · CC0
CHazard risk
Natural hazards in Washington · FEMA

More hazard damage per building is expected in Washington than in 71% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, Washington gets a C for hazard risk: higher expected damage per building than 71% of U.S. towns. Most of that expected damage is river and rain flooding (61%), then tornadoes (12%). 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 71%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
By hazard

What Washington 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

61%of expected building damage
Above average · higher than 64% of U.S. census tracts
Recorded about once every 2 years in the area

Tornadoes

12%of expected building damage
Well above average · in the top 7% of U.S. census tracts
Recorded about once every 3 years in the area

Wildfire

9%of expected building damage
Well above average · in the top 5% of U.S. census tracts

Strong wind

9%of expected building damage
Well above average · in the top 2% of U.S. census tracts
Recorded about 5 times a year in the area
Smaller shares here
 Ice storms Winter storms Earthquakes Heat waves top 0% Lightning Cold waves Landslides
FEMA models no building damage here
Coastal floodingHurricanesAvalanchesTsunamisVolcanic activity

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 Washington’s grade

River and rain flooding is 61% of the building damage FEMA expects in Washington, and Washington’s rate of river and rain flooding damage is higher than 64% of U.S. census tracts. Tornadoes add 12%, at a rate in the top 7% of U.S. census tracts.

Where Washington sits
Washington
Least damageMiddleMost damage

C higher expected damage per building than 71% of U.S. towns (21,298).

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

What drives the damage to buildings
River and rain flooding61%Tornadoes12%Wildfire9%Everything else18%

In dollars, FEMA expects about $1.3M a year in losses across Washington: $832K to buildings, the rest to people and crops.

Shared tract.All of Washington’s 1,071 residents (2020 census) live in one census tract, which it shares with Hanover city (690 residents) and Mill Creek township (178 residents) and Farmington township (172 residents) and Haddam township (158 residents) and Morrowville city (114 residents) and Haddam city (110 residents) and Independence township (101 residents) and Franklin township (84 residents) and Charleston township (67 residents) and Union township (65 residents) and Lowe township (49 residents) and Mahaska city (46 residents) and Highland township (24 residents) and Hollenberg city (10 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 town’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 Washington flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Washington. 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

Washington 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

4 federal disasters brought FEMA money to Washington

Disasters that paid out in Washington itself (aid to households or repair grants to the City of Washington), newest first, with that year’s flood claims.

  1. 2021Severe Storms and Straight Line Winds$30K to the City of Washington for repairs
  2. 2015Severe Storms, Tornadoes, Straight-line Winds, and Flooding$17K to the City of Washington for repairs
  3. 2007Severe Winter Storms$19K to the City of Washington for repairs
  4. 2007Severe Storms, Tornadoes, and Flooding$61K to the City of Washington for repairs
Disasters declared, by decade
Paid out in WashingtonWashington County only

Washington County has had 16 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.

Also 1 FEMA wildfire suppression grant (Fire Management Assistance, not a disaster declaration) for fires in Washington County, 2023–2023.

Were you here?

Old photos of Washington after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the Washington archive →
Next door

Washington and its neighbors

Washington has the lowest expected damage per building of the 1 graded towns here. Tap a town to see its hazards.

Washington Township: not gradedWashington TownshipWashington
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
WashingtonCmore damage than 71%river and rain flooding0
Washington Township—108 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 Washington 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 ↗
Wildfire
  • Clear dead leaves and brush within 5 feet of the house.
  • Sign up for local alerts and know two ways out.
  • Keep N95 masks for smoky days.
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 Washington

Is Washington at risk for natural disasters?

On FEMA’s National Risk Index, Washington has higher expected damage per building than 71% of U.S. towns: C for hazard risk. Most of the expected damage is river and rain flooding (61%) and tornadoes (12%). 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 Washington 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, 5% of homes in mapped flood zones carry federal flood insurance, and 0.1% of all homes do.

How much is flood insurance in Washington?

FEMA’s Community Rating System list shows no discount for Washington’s 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 Washington?

By FEMA money that reached Washington, Severe Storms, Tornadoes, and Flooding (2007): $61K to the City of Washington for repairs.

Is Washington at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (61%), and Washington’s rate for it is higher than 64% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Washington.

Town Square →
Start the conversation

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