Grosse Pointe, MI Radon Levels

Q: What EPA Radon Zone is Grosse Pointe in?

Grosse Pointe is in Wayne County, EPA Zone 3.

Q: Why are radon readings shown from areas near Grosse Pointe?

No homeowner radon tests have been submitted for Grosse Pointe yet, so readings from the closest cities and the Wayne 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 Grosse Pointe?

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

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

Grosse Pointe, MI Radon Facts

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

County Wayne County, MI

Zip Code 48230

Historic Grosse Pointe lies in Wayne County along Lake St. Clair within the Detroit Metro area, where lakefront geology creates unique conditions for radon migration patterns. The prestigious community features elegant homes from various architectural periods, many with full basements typical of early-to-mid 20th century construction. Testing data for zip codes 48230 and 48236 remains limited, making it essential for residents to conduct professional radon testing given the potential for elevated levels in this geological setting.

5.33

pCi/L area average

Above EPA Action Level

Wayne County average: 5.33 pCi/L, based on 15 user-submitted tests across 9 cities in the county. No homeowner readings have been submitted for Grosse Pointe itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Grosse Pointe, 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 Grosse Pointe, MI

No homeowner tests have been submitted for Grosse Pointe 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
Harper Woods	2.3 mi	5.00 pCi/L	1
Warren	8.3 mi	5.67 pCi/L	3
Clinton Township	12.6 mi	6.50 pCi/L	2
Sterling Heights	13.6 mi	7.00 pCi/L	1
Troy	17.0 mi	3.00 pCi/L	1
Macomb	17.5 mi	3.00 pCi/L	1
Birmingham	18.1 mi	6.00 pCi/L	1
Allen Park	18.6 mi	7.00 pCi/L	1

Wayne County Radon Profile

The EPA maps Wayne County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Homeowner-submitted tests from 9 cities in Wayne County average 5.33 pCi/L across 15 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Wayne County home regardless of zone or a neighbor's results.

Radon FAQ for Grosse Pointe, MI

What EPA Radon Zone is Grosse Pointe in?

Grosse Pointe and the 48230 zip code are in Wayne 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 Grosse Pointe?

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

Radon mitigation in Grosse Pointe 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 Grosse Pointe?

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.