Lake Oswego, OR Radon Levels
Check local Lake Oswego radon levels and find certified testing and mitigation professionals to keep your home safe
Lake Oswego, OR Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Clackamas County, OR
Zip Code
97034
Situated in Clackamas County within the Portland Metro area, Lake Oswego sits in Oregon's Willamette Valley where volcanic soils and basalt bedrock typically produce lower radon levels than many other regions. Testing data for zip codes 97034 and 97035 remains limited, though EPA Zone 3 classification suggests moderate concern. The community's upscale residential character features predominantly newer homes with modern foundation systems that may reduce radon entry compared to older construction.
Lake Oswego, OR Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Lake Oswego, OR
What EPA Radon Zone is Lake Oswego in?
Lake Oswego and the 97034 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 Lake Oswego?
Radon mitigation in Lake Oswego 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 Lake Oswego?
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.
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