Bigfork, MN Radon Levels

Q: What EPA Radon Zone is Bigfork in?

Bigfork is in Itasca County, EPA Zone 2.

Q: How much does radon mitigation cost in Bigfork?

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

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

Bigfork, MN Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Itasca County, MN

Zip Code 56628

Nestled in Itasca County among Minnesota's northern forests, Bigfork sits on glacial lake deposits over Precambrian bedrock of the Canadian Shield. Testing data for the 56628 area remains sparse, but the underlying granite and metamorphic rocks suggest moderate-to-high radon potential. Residents should test their homes, particularly those with basements or crawl spaces that can concentrate radon from the crystalline bedrock below.

10.00

pCi/L area average

Above EPA Action Level

Itasca County average: 10.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Bigfork 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+

Bigfork, 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 Bigfork, MN

No homeowner tests have been submitted for Bigfork 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
Deer River	26.7 mi	10.00 pCi/L	1

Itasca County Radon Profile

The soils and bedrock of Itasca County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 1 city in Itasca County average 10.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Itasca County to test, as levels can differ between neighboring homes.

Radon FAQ for Bigfork, MN

What EPA Radon Zone is Bigfork in?

Bigfork and the 56628 zip code are in Itasca County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Bigfork?

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

Radon mitigation in Bigfork 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 Bigfork?

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.