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Natural hazards · Ellisville

Ellisville, MO natural hazards

Most of the natural-hazard damage FEMA expects in Ellisville comes from heat waves, and overall the risk is moderate for a U.S. community. Flood insurance has paid 1 claim here since 2015. 8 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations
Expected damage

How exposed is Ellisville?

42
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Ellisville to be higher than in 42% of U.S. communities, mostly from heat waves and inland flooding.

Heat waves38%Inland flooding27%Earthquakes18%Cold waves6%Hail6%Everything else6%
By hazard

What Ellisville faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Heat waves

38% of expected damage
Above average · higher than 64% of U.S. places
Recorded about 15 times a year in the area

Inland flooding

27% of expected damage
Below average · higher than 38% of U.S. places
Recorded about 3 times a year in the area

Earthquakes

18% of expected damage
Well above average · higher than 82% of U.S. places

Cold waves

6% of expected damage
Well below average · higher than 17% of U.S. places
Recorded about 2 times a year in the area

Hail

6% of expected damage
Well above average · higher than 94% of U.S. places
Recorded about 5 times a year in the area

Lower here

HurricanesTornadoesIce stormsWinter weatherWildfireLandslidesStrong windLightning

Not a risk here

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

Does Ellisville flood?

Every paid claim on a federal flood insurance policy in Ellisville, from FEMA’s records.

1paid claims since 2015
$109Kpaid to owners
0homes flooded more than once
20152026
of homes in flood zones
are insured
of all homes
are insured
No community discount. Ellisville isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: St. Louis County.
Disasters that hit Ellisville

8 federal disasters brought FEMA money here

Disasters the President declared that paid out in Ellisville itself: aid to households, or repair grants to the City of Ellisville.

Brought FEMA money into EllisvilleDeclared for St. Louis County only
2025

Severe Storms, Straight-Line Winds, Tornadoes, and Flooding

1 household applied for aid
2022

Severe Storms and Flooding

5 households applied for aid
2015

Severe Storms, Tornadoes, Straight-Line Winds, and Flooding

1 household applied for aid $940 aid approved
2008

Severe Storms, Flooding, and a Tornado

1 household applied for aid $2K aid approved
2008

Severe Storms and Flooding

1 household applied for aid $432 aid approved
2007

Severe Winter Storms and Flooding

$63K to the City of Ellisville for repairs
2006

Severe Winter Storms

$58K to the City of Ellisville for repairs
2006

Severe Storms

$11K to the City of Ellisville for repairs
St. Louis County has had 29 natural disasters declared since 1953, most often severe storms and floods.
Around Ellisville

Ellisville and the towns around it

Wildwood: Moderate, mostly inland floodingBallwin: Moderate, mostly heat wavesClarkson Valley: Moderate, mostly inland floodingEureka: High, mostly inland floodingChesterfield: Moderate, mostly inland floodingManchester: High, mostly heat wavesTown and Country: Moderate, mostly inland floodingWinchester: Moderate, mostly heat wavesEllisville: Moderate, mostly heat waves EllisvilleWildwoodBallwinClarkson Valley
Very lowLowModerateHighVery high
Ballwinmostly heat wavesModerate
Clarkson Valleymostly inland floodingModerate
Wildwoodmostly inland floodingModerate
Ellisvillemostly heat wavesModerate
About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.
Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Ellisville covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Ellisville’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Ellisville. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Ellisville total about $6.1M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); 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. Census tracts: U.S. Census Bureau.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01
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