Stillwater, MN Radon Mitigation and Testing

Q: What EPA Radon Zone is Stillwater in?

Stillwater is in Washington County, EPA Zone 1.

Q: How much does radon mitigation cost in Stillwater?

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

Washington County

EPA Zone 1

Nestled in Washington County along the St. Croix River valley within the Minneapolis-St. Paul Metro, Stillwater sits on glacial deposits that can trap radon gas beneath homes. The historic river town features a mix of 19th-century homes and modern suburban development, many with full basements. Current testing data for the 55082 area is limited, making professional radon testing advisable for all residents.

Stillwater, MN Radon Mitigation

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

Stillwater, MN Radon Testing

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

Stillwater Radon Facts

Key details about the radon risk profile for Stillwater and the 55082 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Washington County, MN

Zip Code

55082

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Stillwater and the 55082 zip code are located in Washington 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 Stillwater, MN

What EPA Radon Zone is Stillwater in?

Stillwater and the 55082 zip code are in Washington 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 Stillwater?

Radon mitigation in Stillwater 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 Stillwater?

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