Is Dickinson County, MI a radon risk area?

Dickinson 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. Rank it against the rest of the country and Dickinson County lands in the 49th percentile for radon potential.

How Dickinson County compares

About 25,995 people live in Dickinson County, Michigan, spread over 760.95 square miles. That works out to roughly 34 people per square mile. Rank 540 by population within its EPA zone puts Dickinson County at the 48th percentile among zone peers. EPA's geology-based Region 5 groups Dickinson County with 523 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

EPA's Zone 2 rating for Dickinson County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Middle-of-the-pack doesn't mean risk-free for any one Dickinson County address — a moderate county average still leaves individual homes to test either side of it.

Next steps for a home in Dickinson County

Nothing about Dickinson County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Michigan's state radon program

Dickinson County's test kit answers today; a Airthings radon monitor keeps answering for Dickinson County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Dickinson County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.