Clear Lake, MN Radon Levels

Q: What EPA Radon Zone is Clear Lake in?

Clear Lake is in Sherburne County, EPA Zone 1.

Q: How much does radon mitigation cost in Clear Lake?

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

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

Clear Lake, MN Radon Facts

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

County Sherburne County, MN

Zip Code 55319

Part of the Minneapolis-St. Paul Metro in Sherburne County, Clear Lake sits on glacial deposits over Precambrian bedrock that contribute to Minnesota's elevated radon potential. Testing data is limited for this 55319 community, making home testing crucial for residents. The area's suburban development includes predominantly newer homes with full basements, creating ideal conditions for radon accumulation if soil gas entry points exist.

7.00

pCi/L area average

Above EPA Action Level

Sherburne County average: 7.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Clear Lake 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+

Clear Lake, 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 Clear Lake, MN

No homeowner tests have been submitted for Clear Lake 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
Big Lake	14.2 mi	7.00 pCi/L	1
Monticello	15.0 mi	10.00 pCi/L	1
Buffalo	21.2 mi	11.00 pCi/L	1
Cold Spring	22.8 mi	4.00 pCi/L	1
Watkins	25.3 mi	5.00 pCi/L	1
Milaca	25.9 mi	4.00 pCi/L	1
Holdingford	29.1 mi	5.00 pCi/L	1
Loretto	29.6 mi	6.00 pCi/L	1

Sherburne County Radon Profile

The bedrock and soils beneath Sherburne County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Sherburne County average 7.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Sherburne County.

Radon FAQ for Clear Lake, MN

What EPA Radon Zone is Clear Lake in?

Clear Lake and the 55319 zip code are in Sherburne 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 Clear Lake?

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

Radon mitigation in Clear Lake 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 Clear Lake?

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.