Duluth, MN Radon Mitigation and Testing

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

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

Q: What EPA Radon Zone is Duluth in?

Duluth is in St Louis County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Duluth?

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

St Louis County

EPA Zone Unknown

2 user tests

Positioned in St. Louis County at the western tip of Lake Superior, Duluth sits on Precambrian bedrock formations that can produce elevated radon levels. Local testing data shows an average of 5.0 pCi/L, exceeding the EPA action level and indicating that mitigation may be needed in many homes. The city's steep terrain, older housing stock, and typical basement construction create conditions favorable for radon accumulation throughout the area's multiple zip codes.

5.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Duluth, MN Radon Mitigation

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

Duluth, MN Radon Testing

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

Duluth, Minnesota Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Duluth, MN	100+ Years	Full Basement	Sep 2021
6 pCi/L	Duluth, MN	21-50 Years	Partial Basement	Sep 2020

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

Duluth Radon Facts

Key details about the radon risk profile for Duluth and the 55802 zip code area.

EPA Radon Zone

Unknown

County

St Louis County, MN

Zip Code

55802

Predicted Screening Level

Unknown

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

Duluth and the 55802 zip code are located in St Louis County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Duluth, MN

What is the average radon level in Duluth, MN?

Based on 2 user-submitted tests, the average radon level in Duluth 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 Duluth in?

Duluth and the 55802 zip code are in St Louis County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in Duluth?

Radon mitigation in Duluth 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 Duluth?

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