Clare County, MI radon potential

EPA's own radon map rates Clare County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Clare County ranks higher in radon potential than 18% of rated counties (the 18th percentile).

How Clare County compares

Clare County, Michigan is home to about 31,405 people across 564.367 square miles. Population density there runs about 56 people per square mile. Within its own EPA zone, Clare County is bigger by population than 54% of the counties that share it. EPA's geology-based Region 5 groups Clare County with 523 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Clare County

At Zone 3, Clare County's predicted county average is under the national indoor average (~1.3 pCi/L) and well below EPA's 4 pCi/L action level — outdoor air nationally runs about 0.4 pCi/L for comparison. Even at Zone 3, Clare County homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

Next steps for a home in Clare 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 Clare County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Clare County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

Where Clare County's figures come from

Clare County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Clare County carries, the zone explainer covers what it does and doesn't tell you about any one house.