Romulus, MI Radon Levels

Q: What EPA Radon Zone is Romulus in?

Romulus is in Wayne County, EPA Zone 3.

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

No homeowner radon tests have been submitted for Romulus 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 Romulus?

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

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

Romulus, MI Radon Facts

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

County Wayne County, MI

Zip Code 48174

Romulus in Wayne County near Detroit Metro Airport sits atop glacial deposits that can influence radon levels in homes throughout this Detroit metro community. Current testing data for zip code 48174 is limited, highlighting the importance of individual home testing for residents. Michigan's glacial geology and limestone bedrock often contribute to elevated radon readings, making professional testing essential.

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 Romulus 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+

Romulus, MI Radon Mitigation

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

Need Radon Mitigation or Testing in Romulus?

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Radon Readings Near Romulus, MI

No homeowner tests have been submitted for Romulus 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
Taylor	6.6 mi	6.00 pCi/L	2
Canton	7.1 mi	3.00 pCi/L	2
Riverview	8.3 mi	2.00 pCi/L	1
Allen Park	9.7 mi	7.00 pCi/L	1
Trenton	10.8 mi	5.00 pCi/L	1
Ypsilanti	10.9 mi	8.50 pCi/L	4
Plymouth	11.0 mi	4.33 pCi/L	3
Carleton	11.8 mi	4.00 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 Romulus, MI

What EPA Radon Zone is Romulus in?

Romulus and the 48174 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 Romulus?

No homeowner radon tests have been submitted for Romulus 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 Romulus 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 Romulus?

Radon mitigation in Romulus 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 Romulus?

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.