Port Townsend, WA Radon Levels
Check local Port Townsend radon levels and find certified testing and mitigation professionals to keep your home safe
Port Townsend, WA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Jefferson County, WA
Zip Code
98368
Perched on the Olympic Peninsula in Jefferson County, Port Townsend overlies marine sedimentary formations and glacial deposits from the Puget Sound region. Testing data for zip codes 98357 and 98368 is currently unavailable, making individual home assessment essential for residents. The area's Victorian-era homes and varied foundation types, combined with the region's geological diversity, create unpredictable radon entry conditions.
Port Townsend, WA 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 Port Townsend, WA
What EPA Radon Zone is Port Townsend in?
Port Townsend and the 98368 zip code are in Jefferson 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 Port Townsend?
Radon mitigation in Port Townsend 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 Port Townsend?
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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