Natural hazards · Muskego

Muskego, WI natural hazards

Most of the natural-hazard damage FEMA expects in Muskego comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 36 claims here since 1993. 6 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Muskego?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Muskego to be higher than in 28% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding52%Cold waves22%Tornadoes15%Everything else11%

By hazard

What Muskego faces

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

Inland flooding

52% of expected damage

Below average · higher than 49% of U.S. places

Recorded about 2 times a year in the area

Cold waves

22% of expected damage

Below average · higher than 33% of U.S. places

Recorded about 5 times a year in the area

Tornadoes

15% of expected damage

Above average · higher than 68% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Muskego flood?

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

36paid claims since 1993

$1.4Mpaid to owners

4homes flooded more than once

19932026

Biggest named events

2025-08-MilwaukeeMetro-Flood: 20 claims, $1.1M
Storm: 6 claims, $198K
2026-04-Flooding: 1 claim, $3K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Muskego isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Waukesha County.

What’s been done with FEMA grants

1flood-prone properties bought out and cleared

Disasters that hit Muskego

6 federal disasters brought FEMA money here

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

Brought FEMA money into MuskegoDeclared for Waukesha County only

2026

Severe Storms, Tornadoes, and Flooding

12 households applied for aid $19K aid approved

2025

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

334 households applied for aid $2.2M aid approved

2008

Severe Storms, Tornadoes, and Flooding

104 households applied for aid $308K aid approved $102K to the City of Muskego for repairs

2008

Record Snow and Near Record Snow

$45K to the City of Muskego for repairs

2004

Severe Storms and Flooding

1 household applied for aid $337 aid approved

2000

Snow

$37K to the City of Muskego for repairs

Waukesha County has had 17 natural disasters declared since 1953, most often floods and severe storms.

Around Muskego

Muskego and the towns around it

Very lowLowModerateHighVery high

Norwaymostly inland floodingModerate

Vernonmostly inland floodingLow

Big Bendmostly inland floodingLow

Muskegomostly inland floodingLow

New Berlinmostly inland floodingVery low

Franklinmostly cold wavesVery low

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. Muskego covers 5 census tracts, combined by population.

Money that reached townFlood claims are matched to Muskego’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Muskego. 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 Muskego total about $8.0M 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.