Menominee County, MI: EPA's radon zone, explained

EPA places Menominee County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally, Menominee County ranks higher in radon potential than 47% of rated counties (the 47th percentile).

Menominee County by the numbers

Menominee County, Michigan is home to about 23,050 people across 1,044.041 square miles. That works out to roughly 22 people per square mile. By population, Menominee County is the 580th largest of every county sharing its EPA zone — the 44th percentile by population within that zone. Menominee County falls in EPA Radon Region 5, one of 524 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Menominee County's Zone 2 prediction clears the 1.3 pCi/L national indoor average without reaching EPA's own 4 pCi/L point for recommending a fix. A county-wide moderate average, like Menominee 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 Menominee County

For a Menominee County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Michigan's state radon program

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

Where Menominee 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. Whatever zone Menominee County carries, the zone explainer covers what it does and doesn't tell you about any one house.