Mentor, MN Radon Levels

Q: What EPA Radon Zone is Mentor in?

Mentor is in Polk County, EPA Zone 1.

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

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

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

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

Mentor, MN Radon Facts

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

County Polk County, MN

Zip Code 56736

Positioned in Polk County within Minnesota's Red River Valley, Mentor sits atop glacial lake sediments and clay soils that can influence radon migration patterns. While specific testing data for the 56736 zip code is currently unavailable, the EPA Zone 1 classification indicates significant radon potential across the region. Rural and farmstead properties should conduct radon testing regardless of the flat terrain and clay soils.

7.00

pCi/L area average

Above EPA Action Level

Polk 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 Mentor 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+

Mentor, 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 Mentor, MN

No homeowner tests have been submitted for Mentor 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
Crookston	21.1 mi	7.00 pCi/L	1
Thief River Falls	31.9 mi	9.00 pCi/L	1

Polk County Radon Profile

The bedrock and soils beneath Polk 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 Polk 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 Polk County.

Radon FAQ for Mentor, MN

What EPA Radon Zone is Mentor in?

Mentor and the 56736 zip code are in Polk 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 Mentor?

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

Radon mitigation in Mentor 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 Mentor?

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.