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Hiawatha National Guard ArmoryHiawatha National Guard Armory · Photo: Ammodramus · CC0
A−Hazard risk
Natural hazards in Hiawatha · FEMA

FEMA puts Hiawatha’s expected hazard damage per building below that of 79% of U.S. towns, led by river and rain flooding

On FEMA’s National Risk Index, Hiawatha gets an A− for hazard risk: lower expected damage per building than 79% of U.S. towns, #11 of 151 in Kansas. Most of that expected damage is river and rain flooding (49%), then tornadoes (31%). 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

less than 79%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade#11 of 151 in Kansas
By hazard

What Hiawatha 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

49%of expected building damage
Well below average · lower than 88% of U.S. census tracts
Recorded about once a year in the area

Tornadoes

31%of expected building damage
Well above average · in the top 2% of U.S. census tracts

Hail

9%of expected building damage
Well above average · higher than 87% of U.S. census tracts
Recorded about 7 times a year in the area
Smaller shares here
 Wildfire Strong wind Earthquakes Ice storms Winter storms Heat waves top 0% Lightning Cold waves Landslides
FEMA models no building damage here
Coastal floodingHurricanesAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts heat waves at 13% of Hiawatha’s expected losses. Heat waves do little damage to buildings (0.2%), 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 Hiawatha’s grade

River and rain flooding is 49% of the building damage FEMA expects in Hiawatha, and Hiawatha’s rate of river and rain flooding damage is lower than 88% of U.S. census tracts. Tornadoes add 31%, at a rate in the top 2% of U.S. census tracts.

Where Hiawatha sits
Hiawatha
Least damageMiddleMost damage

A− #11 of 151 in Kansas; lower expected damage per building than 79% of U.S. towns (21,298).

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

What drives the damage to buildings
River and rain flooding49%Tornadoes31%Hail9%Everything else10%

The typical Kansas town has higher expected damage than 54% of U.S. towns; within the state, Hiawatha has less expected damage per building than 93% of Kansas towns.

In dollars, FEMA expects about $1.5M a year in losses across Hiawatha: $864K to buildings, the rest to people and crops.

Shared tract.All of Hiawatha’s 3,280 residents (2020 census) live in one census tract. FEMA publishes its model by tract, so the rate and the hazard mix are the tract’s. 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 Hiawatha flood? No paid flood claims on record

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

Hiawatha isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Brown County.
Disasters

3 federal disasters brought FEMA money to Hiawatha

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

  1. 2015Severe Storms, Tornadoes, Straight-line Winds, and Flooding$3K to the City of Hiawatha for repairs
  2. 2007Severe Winter Storms$305K to the City of Hiawatha for repairs
  3. 2005Severe Winter Storms, Heavy Rains, and Flooding$5K to the City of Hiawatha for repairs
Disasters declared, by decade
Paid out in HiawathaBrown County only

Brown County has had 15 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.

Were you here?

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

Add to the Hiawatha archive →
Be ready

Get ready for what Hiawatha 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 ↗
Hail
  • 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.
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 Hiawatha

Is Hiawatha at risk for natural disasters?

On FEMA’s National Risk Index, Hiawatha has lower expected damage per building than 79% of U.S. towns: A− for hazard risk, #11 of 151 in Kansas. Most of the expected damage is river and rain flooding (49%) and tornadoes (31%). 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 Hiawatha 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 Brown County, 0.0% of all homes carry federal flood insurance.

How much is flood insurance in Hiawatha?

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

By FEMA money that reached Hiawatha, Severe Winter Storms (2007): $305K to the City of Hiawatha for repairs.

Is Hiawatha at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (49%), and Hiawatha’s rate for it is lower than 88% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Hiawatha.

Town Square →
Start the conversation

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