Natural hazards · Greendale

Greendale, MO natural hazards

Most of the natural-hazard damage FEMA expects in Greendale comes from earthquakes, and overall the risk is moderate for a U.S. community. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Greendale?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Greendale to be higher than in 44% of U.S. communities, mostly from earthquakes and heat waves.

Earthquakes36%Heat waves35%Inland flooding13%Cold waves6%Everything else10%

By hazard

What Greendale faces

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

Earthquakes

36% of expected damage

Well above average · higher than 86% of U.S. places

Heat waves

35% of expected damage

Above average · higher than 64% of U.S. places

Recorded about 15 times a year in the area

Inland flooding

13% of expected damage

Well below average · higher than 12% of U.S. places

Recorded about 3 times a year in the area

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

Lower here

HurricanesTornadoesHailIce 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 Greendale flood?

FEMA's records show no paid flood insurance claims in Greendale.

of homes in flood zones
are insured

of all homes
are insured

No community discount. Greendale 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 Greendale

3 federal disasters brought FEMA money here

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

Brought FEMA money into GreendaleDeclared for St. Louis County only

2022

Severe Storms and Flooding

1 household applied for aid $3K aid approved

2006

Severe Winter Storms

$4K to the City of Greendale for repairs

2006

Severe Storms

$7K to the City of Greendale for repairs

St. Louis County has had 29 natural disasters declared since 1953, most often severe storms and floods.

Around Greendale

Greendale and the towns around it

Very lowLowModerateHighVery high

Greendalemostly earthquakesModerate

Bel-Normostly earthquakesModerate

Pagedalemostly earthquakesModerate

Normandymostly earthquakesModerate

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. Greendale is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Greendale’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Greendale. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

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.