Holyoke, MN Radon Levels

Q: What EPA Radon Zone is Holyoke in?

Holyoke is in Carlton County, EPA Zone 2.

Q: How much does radon mitigation cost in Holyoke?

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

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

Holyoke, MN Radon Facts

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

County Carlton County, MN

Zip Code 55749

Part of the Duluth Metro area in Carlton County, Holyoke sits on Precambrian bedrock formations that can contribute to moderate radon levels. Testing data for zip code 55749 is currently limited, making baseline testing recommended for area homeowners. Northern Minnesota's geological complexity, including granite intrusions and metamorphic rocks, creates variable radon conditions throughout the region.

6.75

pCi/L area average

Above EPA Action Level

Carlton County average: 6.75 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Holyoke 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+

Holyoke, 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 Holyoke, MN

No homeowner tests have been submitted for Holyoke 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
Carlton	13.4 mi	6.00 pCi/L	1
Moose Lake	17.7 mi	4.00 pCi/L	1
Cloquet	21.4 mi	8.50 pCi/L	2
Duluth	25.0 mi	5.00 pCi/L	2
Askov	25.9 mi	10.00 pCi/L	1

Carlton County Radon Profile

The soils and bedrock of Carlton 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 3 cities in Carlton County average 6.75 pCi/L across 4 tests — 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 Carlton County to test, as levels can differ between neighboring homes.

Radon FAQ for Holyoke, MN

What EPA Radon Zone is Holyoke in?

Holyoke and the 55749 zip code are in Carlton 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 Holyoke?

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

Radon mitigation in Holyoke 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 Holyoke?

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.