Osseo, MN Radon Levels

Q: What EPA Radon Zone is Osseo in?

Osseo is in Hennepin County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Osseo 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 Osseo?

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

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

Osseo, MN Radon Facts

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

County Hennepin County, MN

Zip Code 55311

Based in Hennepin County within the Minneapolis-St. Paul Metro area, Osseo sits on glacial deposits over Ordovician limestone bedrock. Although specific radon testing data for zip codes 55311 and 55369 remains limited, the EPA Zone 1 classification indicates high predicted radon potential. Given the Twin Cities region's geology and the prevalence of basement foundations in suburban developments, residents should prioritize professional radon testing.

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 Osseo 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+

Osseo, 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 Osseo, MN

No homeowner tests have been submitted for Osseo 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	6.1 mi	5.00 pCi/L	2
Loretto	10.3 mi	6.00 pCi/L	1
Minneapolis	10.9 mi	5.00 pCi/L	2
Hopkins	11.6 mi	7.00 pCi/L	1
Anoka	12.7 mi	5.00 pCi/L	1
Minnetonka	13.0 mi	5.00 pCi/L	1
Mound	14.8 mi	6.00 pCi/L	1
Excelsior	15.0 mi	13.00 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 Osseo, MN

What EPA Radon Zone is Osseo in?

Osseo and the 55311 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 Osseo?

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

Radon mitigation in Osseo 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 Osseo?

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.