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Waukesha County, Wisconsin Flood Zones

Check an Address in Waukesha County

Enter any address in Waukesha County, Wisconsin to see its FEMA flood zone

Waukesha County Disaster History

Disaster Declarations
18
Flood/Coastal Disasters
6
Hurricane Disasters
1
Latest Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, AND MUDSLIDES (2025-08-09)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Waukesha County

DeclarationTypeDate
SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, AND MUDSLIDESFlood2025-08-09
COVID-19 PANDEMICBiological2020-01-20
COVID-19 Biological2020-01-20
SEVERE STORMS, TORNADOES, AND FLOODINGSevere Storm2008-06-05
RECORD SNOW AND NEAR RECORD SNOWSnowstorm2008-02-05
HURRICANE KATRINA EVACUATIONHurricane2005-08-29
SEVERE STORMS AND FLOODINGSevere Storm2004-05-07
SNOWSnowstorm2000-12-11
SEVERE STORMS, TORNADOES, AND FLOODINGSevere Storm2000-05-26
SEVERE STORMS AND FLOODINGSevere Storm1998-08-05

Flood Zone Types in Waukesha County

FEMA assigns flood zone designations to areas in Waukesha County, Wisconsin:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in Waukesha County

Properties in Waukesha County, Wisconsin that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. Over 20% of NFIP claims come from low and moderate-risk areas.

Visit FloodSmart.gov to find an agent and get a quote.