Thief River Falls, MN Radon Mitigation and Testing

Q: What is the average radon level in Thief River Falls, MN?

Based on 1 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Thief River Falls in?

Thief River Falls is in Pennington County, EPA Zone 1.

Q: How much does radon mitigation cost in Thief River Falls?

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

Avg: 9.00 pCi/L

Pennington County

EPA Zone 1

1 user test

Thief River Falls is located in Pennington County, Minnesota. With 1 user-submitted readings averaging 9.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 56701 zip code.

9.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Thief River Falls, MN. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Thief River Falls, MN Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Thief River Falls, MN Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Thief River Falls, Minnesota Radon Levels

User-submitted radon test readings from homes in the Thief River Falls area.

Radon Level	City	Home Age	Foundation	Submitted
9 pCi/L	Thief River Falls, MN	21-50 Years	Full Basement	Jul 2023

Have a radon test result for Thief River Falls? Submit your reading to help other homeowners.

Thief River Falls Radon Facts

Key details about the radon risk profile for Thief River Falls and the 56701 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Pennington County, MN

Zip Code

56701

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

9.00 pCi/L

User Tests Submitted

Thief River Falls and the 56701 zip code are located in Pennington County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Thief River Falls, MN

What is the average radon level in Thief River Falls, MN?

Based on 1 user-submitted test, the average radon level in Thief River Falls is 9.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Thief River Falls in?

Thief River Falls and the 56701 zip code are in Pennington 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.

How much does radon mitigation cost in Thief River Falls?

Radon mitigation in Thief River Falls 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 Thief River Falls?

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.

Most Active Radon Markets in Minnesota

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Savage	5.00 pCi/L	3
Faribault	10.00 pCi/L	2
Shakopee	6.50 pCi/L	2
Minneapolis	5.00 pCi/L	2
Lakeville	6.00 pCi/L	1
Delano	5.00 pCi/L	1
Montgomery	5.00 pCi/L	1
Rosemount	No submissions	0