Jackson County, WI radon potential

Jackson County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Jackson County sits at the 46th percentile nationally for radon potential — above 46 of every 100 rated counties.

How Jackson County compares

Jackson County, Wisconsin is home to about 21,027 people across 987.915 square miles. Population density there runs about 21 people per square mile. Within its own EPA zone, Jackson County is bigger by population than 41% of the counties that share it. EPA's geology-based Region 5 groups Jackson County with 523 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Jackson County's Zone 2 prediction. A county-wide moderate average, like Jackson County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Next steps for a home in Jackson County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Wisconsin's state radon program

For Jackson County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Jackson County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Jackson County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.