International Falls, MN Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is International Falls in?

International Falls is in Koochiching County, EPA Zone 2.

Q: How much does radon mitigation cost in International Falls?

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

Avg: 5.00 pCi/L

Koochiching County

EPA Zone 2

2 user tests

Located in Koochiching County along Minnesota's northern border, International Falls sits on glacial deposits that contribute to elevated radon potential. Based on limited testing data from zip code 56649, the city shows an average radon level of 5.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. Homeowners in this border community should prioritize radon testing, especially given the geological conditions common throughout northern Minnesota.

5.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in International Falls, MN. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

International Falls, MN Radon Mitigation

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

International Falls, MN Radon Testing

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

International Falls, Minnesota Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
7 pCi/L	International Falls, MN	21-50 Years	Full Basement	Nov 2025
3 pCi/L	International Falls, MN	21-50 Years	Full Basement	Mar 2024

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

International Falls Radon Facts

Key details about the radon risk profile for International Falls and the 56649 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Koochiching County, MN

Zip Code

56649

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

International Falls and the 56649 zip code are located in Koochiching County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for International Falls, MN

What is the average radon level in International Falls, MN?

Based on 2 user-submitted tests, the average radon level in International Falls is 5.00 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 International Falls in?

International Falls and the 56649 zip code are in Koochiching 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.

How much does radon mitigation cost in International Falls?

Radon mitigation in International 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 International 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