Winona, MN Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 10.00 pCi/L.

Q: What EPA Radon Zone is Winona in?

Winona is in Winona County, EPA Zone 1.

Q: How much does radon mitigation cost in Winona?

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

Avg: 10.00 pCi/L

Winona County

EPA Zone 1

1 user test

Bluff-top Winona in Winona County shows an average radon level of 10.0 pCi/L, which substantially exceeds the EPA action threshold of 4.0 pCi/L. Situated along the Mississippi River where limestone bluffs and glacial deposits create ideal conditions for radon accumulation, this historic community requires careful monitoring. Homeowners should prioritize professional mitigation consultation to address these elevated indoor air concentrations.

10.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Winona, MN Radon Mitigation

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

Winona, MN Radon Testing

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

Winona, Minnesota Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
10 pCi/L	Winona, MN	21-50 Years	Full Basement	Apr 2022

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

Winona Radon Facts

Key details about the radon risk profile for Winona and the 55987 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Winona County, MN

Zip Code

55987

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

10.00 pCi/L

User Tests Submitted

Winona and the 55987 zip code are located in Winona 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 Winona, MN

What is the average radon level in Winona, MN?

Based on 1 user-submitted test, the average radon level in Winona is 10.00 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 Winona in?

Winona and the 55987 zip code are in Winona 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 Winona?

Radon mitigation in Winona 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 Winona?

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