Natural Disaster Risk in Mequon

Natural Hazard Profile: Mequon, Wisconsin

Located in the Great Lakes region in Ozaukee County, Mequon is a city of approximately 20,886 residents. The humid continental climate that characterizes this part of Wisconsin — marked by long, cold winters with lake-effect snow and warm summers — directly influences the types and severity of natural hazards present, making Mequon a community where hazard awareness has real practical value.

Mequon's overall natural disaster risk is rated 5.1/10 (Moderate) by FEMA's National Risk Index. Coastal flood risk defines the local natural hazard environment, with sea-level rise trends gradually increasing the frequency of tidal flooding events alongside storm surge threats. Secondary hazards include cold wave and hail.

Relative to other U.S. communities, Mequon's natural disaster risk is above the U.S. national average of 4.5/10, near the 5.4/10 state average. The hazard distribution here is led by coastal flood and cold wave, as measured by FEMA across Ozaukee County. While city-specific sub-county variation exists, these scores represent the best available federal risk estimate.

With a moderate risk rating, Mequon residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for coastal flood is recommended.