Wilsonville, OR Radon Mitigation and Testing

Q: What EPA Radon Zone is Wilsonville in?

Wilsonville is in Clackamas County, EPA Zone 3.

Q: How much does radon mitigation cost in Wilsonville?

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

Clackamas County

EPA Zone 3

Part of the Portland Metro in Clackamas County, Wilsonville sits within the Willamette Valley where alluvial soils over Columbia River basalt create Oregon's typically moderate radon conditions. Testing data for this zip code 97070 community remains limited, though the Pacific Northwest's volcanic geology generally produces lower radon levels than many regions. Homeowners should still conduct testing, especially in homes with basements or those built on hillside locations.

Wilsonville, OR Radon Mitigation

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

Wilsonville, OR Radon Testing

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

Wilsonville Radon Facts

Key details about the radon risk profile for Wilsonville and the 97070 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Clackamas County, OR

Zip Code

97070

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Wilsonville and the 97070 zip code are located in Clackamas County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Wilsonville, OR

What EPA Radon Zone is Wilsonville in?

Wilsonville and the 97070 zip code are in Clackamas County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Wilsonville?

Radon mitigation in Wilsonville 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 Wilsonville?

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 Oregon

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

City	Avg User Radon Level	Submissions
Corvallis	5.60 pCi/L	5
Astoria	9.25 pCi/L	4
La Grande	10.67 pCi/L	3
Bend	3.33 pCi/L	3
Salem	9.00 pCi/L	2
Eugene	7.00 pCi/L	2
Medford	7.00 pCi/L	1
Dundee	6.00 pCi/L	1
Ashland	4.00 pCi/L	1
Portland	4.00 pCi/L	1
Lincoln City	No submissions	0
West Linn	No submissions	0