Natural hazards · Brentwood

Brentwood, MO natural hazards

Most of the natural-hazard damage FEMA expects in Brentwood comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 503 claims here since 1978. 6 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Brentwood?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Brentwood to be higher than in 76% of U.S. communities, mostly from inland flooding and heat waves.

Inland flooding44%Heat waves25%Earthquakes18%Everything else13%

By hazard

What Brentwood faces

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

Inland flooding

44% of expected damage

Well above average · higher than 84% of U.S. places

Recorded about 3 times a year in the area

Heat waves

25% of expected damage

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

Recorded about 15 times a year in the area

Earthquakes

18% of expected damage

Well above average · higher than 83% of U.S. places

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesWildfireLandslidesStrong 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 Brentwood flood?

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

503paid claims since 1978

$34.9Mpaid to owners

56homes flooded more than once

19782026

Biggest named events

Hurricane Ike: 75 claims, $9.7M
Midwest Flooding: 47 claims, $1.5M
Late July Flooding: 26 claims, $5.0M

Homes that flooded again and again

■ FEMA “severe repetitive loss” (39) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

🏷️ 05% off flood insurance. Brentwood is in FEMA’s Community Rating System (class 9) for its flood-proofing work.

Insurance rates: St. Louis County.

What’s been done with FEMA grants

23flood-prone properties bought out and cleared

Disasters that hit Brentwood

6 federal disasters brought FEMA money here

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

Brought FEMA money into BrentwoodDeclared for St. Louis County only

2025

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

1 household applied for aid $16K aid approved $101K to the City of Brentwood for repairs

2022

Severe Storms and Flooding

14 households applied for aid $33K aid approved $2.9M to the City of Brentwood for repairs

2015

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

2 households applied for aid $602 aid approved $24K to the City of Brentwood for repairs

2008

Severe Storms, Flooding, and a Tornado

39 households applied for aid $69K aid approved

2006

Severe Winter Storms

$22K to the City of Brentwood for repairs

2006

Severe Storms

$53K to the City of Brentwood for repairs

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

Around Brentwood

Brentwood and the towns around it

Very lowLowModerateHighVery high

Brentwoodmostly inland floodingHigh

Maplewoodmostly inland floodingHigh

Richmond Heightsmostly inland floodingHigh

Webster Grovesmostly heat wavesModerate

Rock Hillmostly 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. Brentwood covers 3 census tracts, combined by population.

Money that reached townFlood claims are matched to Brentwood’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Brentwood. 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 Brentwood total about $11.2M 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.