Trail, MN Radon Levels

Q: What EPA Radon Zone is Trail in?

Trail is in Polk County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Trail 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 Trail?

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

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

Trail, MN Radon Facts

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

County Polk County, MN

Zip Code 56684

Situated in northern Minnesota's Polk County, Trail lies within EPA Zone 1 where glacial deposits over Precambrian bedrock create conditions highly favorable for radon production. Testing data for zip code 56684 is currently unavailable, but Minnesota's northern counties consistently show elevated radon levels requiring homeowner vigilance. Rural properties with basements or crawl spaces warrant particular attention for radon testing and potential mitigation.

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 Trail 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+

Trail, 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 Trail, MN

No homeowner tests have been submitted for Trail 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
Thief River Falls	32.2 mi	9.00 pCi/L	1
Crookston	38.7 mi	7.00 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 Trail, MN

What EPA Radon Zone is Trail in?

Trail and the 56684 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 Trail?

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

Radon mitigation in Trail 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 Trail?

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.