Eaton County, MI radon potential

Eaton 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. Nationally, Eaton County ranks higher in radon potential than 60% of rated counties (the 60th percentile).

Eaton County by the numbers

Eaton County, Michigan is home to about 109,494 people across 575.21 square miles. That works out to roughly 190 people per square mile. Within its own EPA zone, Eaton County is bigger by population than 82% of the counties that share it. EPA's geology-based Region 5 groups Eaton 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 Eaton County's Zone 2 prediction. Middle-of-the-pack doesn't mean risk-free for any one Eaton County address — a moderate county average still leaves individual homes to test either side of it.

Testing and mitigation in Eaton 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 Michigan's state radon program

For Eaton County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Eaton 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 Eaton 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. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.