Dayton, MN Radon Levels

Q: What EPA Radon Zone is Dayton in?

Dayton is in Hennepin County, EPA Zone 1.

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

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

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

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

Dayton, MN Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Hennepin County, MN

Zip Code 55327

Situated in Hennepin County within the Minneapolis-St. Paul metro region, Dayton rests on glacial deposits that can contribute to elevated radon levels. Current testing data for zip code 55327 is limited, emphasizing the importance of individual home testing. The community's newer suburban developments typically feature modern foundation systems, though radon testing remains recommended for all residents.

6.30

pCi/L area average

Above EPA Action Level

Hennepin County average: 6.30 pCi/L, based on 10 user-submitted tests across 8 cities in the county. No homeowner readings have been submitted for Dayton 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+

Dayton, MN 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 Dayton, MN

No homeowner tests have been submitted for Dayton 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
Champlin	4.6 mi	5.00 pCi/L	2
Anoka	6.3 mi	5.00 pCi/L	1
Loretto	11.7 mi	6.00 pCi/L	1
Minneapolis	16.8 mi	5.00 pCi/L	2
Big Lake	16.9 mi	7.00 pCi/L	1
Monticello	17.7 mi	10.00 pCi/L	1
Hopkins	18.3 mi	7.00 pCi/L	1
Buffalo	19.4 mi	11.00 pCi/L	1

Hennepin County Radon Profile

Because of its underlying geology, Hennepin County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 8 cities in Hennepin County average 6.30 pCi/L across 10 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 Hennepin County home regardless of zone or a neighbor's results.

Radon FAQ for Dayton, MN

What EPA Radon Zone is Dayton in?

Dayton and the 55327 zip code are in Hennepin County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Dayton?

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

Radon mitigation in Dayton 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 Dayton?

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.