Natural Disaster Risk in Wilsonville

Natural Hazard Profile: Wilsonville, Illinois

Located in the interior eastern United States in Macoupin County, Wilsonville is a small unincorporated community. The humid continental climate that characterizes this part of Illinois — marked by bitterly cold winters and hot, humid summers — directly influences the types and severity of natural hazards present, making Wilsonville a community where hazard awareness has real practical value.

Wilsonville's overall natural disaster risk is rated 6.9/10 (High) by FEMA's National Risk Index. Earthquake risk stands out in the local hazard profile, driven by proximity to fault systems with a history of significant ground movement. Secondary hazards include heat and wind.

Relative to other U.S. communities, Wilsonville's natural disaster risk is well above the U.S. national average of 4.5/10, slightly above the 5.8/10 state average. The hazard distribution here is led by earthquake and heat, as measured by FEMA across Macoupin County. While city-specific sub-county variation exists, these scores represent the best available federal risk estimate.

With a high natural disaster risk rating, Wilsonville residents benefit from taking preparedness seriously. Reviewing insurance coverage for earthquake and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.