Marion, MI Radon Levels

Q: What EPA Radon Zone is Marion in?

Marion is in Clare County, EPA Zone 3.

Q: Why are radon readings shown from areas near Marion?

No homeowner radon tests have been submitted for Marion yet, so readings from the closest cities and the Clare County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Marion?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Marion radon levels and find certified testing and mitigation professionals to keep your home safe

Marion, MI Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Clare County, MI

Zip Code 49665

Situated in Clare County in Michigan's north-central region, Marion sits atop glacial deposits left by ancient ice sheets that can influence radon migration patterns. Limited testing data makes it challenging to establish local radon trends for this community. Given Michigan's variable radon potential across different geological formations, homeowners should prioritize professional testing to establish baseline readings.

6.33

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.33 pCi/L, based on 3 tests from 3 nearby cities. No readings have been submitted for Marion yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Marion, MI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Marion, MI

No homeowner tests have been submitted for Marion yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Cadillac	19.6 mi	6.00 pCi/L	1
Gladwin	32.7 mi	8.00 pCi/L	1
Kingsley	40.9 mi	5.00 pCi/L	1

Clare County Radon Profile

Clare County is classified as EPA Radon Zone 3, the lowest predicted-risk tier, with modeled indoor screening averages below 2 pCi/L. User-submitted readings are still sparse within Clare County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Clare County.

Radon FAQ for Marion, MI

What EPA Radon Zone is Marion in?

Marion and the 49665 zip code are in Clare County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

Why are radon readings shown from areas near Marion?

No homeowner radon tests have been submitted for Marion yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Clare County average—are the best available indicator of local conditions until Marion homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Marion?

Radon mitigation in Marion typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Marion?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.