Radon in Winnebago County

Radon Levels in Your Home

A review of radon test results from 2006 to 2016 in Winnebago County shows a relationship with two important factors, depth to bedrock, and the age of the home. 

  • Depth to bedrock: The closer bedrock is to the surface the more likely radon is coming into your home.
  • Age of structure: Newer homes and/or remodels with better windows, doors, insulation, etc. tend to be less drafty. This can increase the amount of radon trapped within the home. 
Radon Testing in Winnebago County

From 2006-2016 there were 2,383 radon tests conducted in Winnebago County.  The average radon level for these tests was 6.0 pCi/L for the county.  Any level above 4.0 pCi/L is considered dangerous for your long-term health.  Tests ranged from .4 pCi/L to 70.0 pCi/L which shows how much radon levels can vary. Testing for radon is a simple at-home kit that can be purchased at the Health Department.

This map displays Radon test results from 2006-2016 and may help you determine if you should test your home for radon. This map is a generalization and does not guarantee that your home is safe or unsafe. If you have questions regarding radon or testing for radon in your home contact one of our Environmental Health Specialists at health@co.winnebago.wi.us.