Owosso, MI Radon Levels

Q: What EPA Radon Zone is Owosso in?

Owosso is in Shiawassee County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Owosso yet, so readings from the closest cities and the Shiawassee 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 Owosso?

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

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

Owosso, MI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Shiawassee County, MI

Zip Code 48867

Owosso in Shiawassee County sits in mid-Michigan where glacial till deposits over sedimentary bedrock create moderate radon potential throughout the region. Though testing data is limited for the 48867 area, the community's mix of historic downtown buildings and suburban homes with basement foundations makes radon testing valuable. Michigan's variable geological conditions mean that neighboring properties can have significantly different radon levels, making individual home testing the most reliable assessment method.

7.61

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.61 pCi/L, based on 18 tests from 10 nearby cities. No readings have been submitted for Owosso 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+

Owosso, 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 Owosso, MI

No homeowner tests have been submitted for Owosso 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
Flushing	16.9 mi	7.50 pCi/L	2
Swartz Creek	17.6 mi	10.00 pCi/L	1
Haslett	20.6 mi	3.50 pCi/L	2
Linden	22.2 mi	3.50 pCi/L	2
Flint	22.6 mi	9.00 pCi/L	3
Fowlerville	23.4 mi	13.00 pCi/L	1
Dewitt	23.7 mi	20.00 pCi/L	1
Okemos	23.8 mi	4.00 pCi/L	1

Shiawassee County Radon Profile

Shiawassee County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Shiawassee 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 Shiawassee County.

Radon FAQ for Owosso, MI

What EPA Radon Zone is Owosso in?

Owosso and the 48867 zip code are in Shiawassee County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Owosso?

No homeowner radon tests have been submitted for Owosso yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Shiawassee County average—are the best available indicator of local conditions until Owosso 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 Owosso?

Radon mitigation in Owosso 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 Owosso?

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.