Anacortes, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Anacortes in?

Anacortes is in Skagit County, EPA Zone 3.

Q: How much does radon mitigation cost in Anacortes?

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

Skagit County

EPA Zone 3

Perched on Fidalgo Island in Skagit County, Anacortes benefits from marine geology and volcanic bedrock that typically produce lower radon levels in the 98221 zip code. However, testing data remains limited for this island community, making individual assessment valuable for homeowners. Washington's diverse geological landscape means even coastal areas can have variable radon conditions worth monitoring.

Anacortes, WA Radon Mitigation

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

Anacortes, WA Radon Testing

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

Anacortes Radon Facts

Key details about the radon risk profile for Anacortes and the 98221 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Skagit County, WA

Zip Code

98221

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Anacortes and the 98221 zip code are located in Skagit 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 Anacortes, WA

What EPA Radon Zone is Anacortes in?

Anacortes and the 98221 zip code are in Skagit 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 Anacortes?

Radon mitigation in Anacortes 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 Anacortes?

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 Washington

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

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.60 pCi/L	5
Seattle	5.25 pCi/L	4
Olympia	5.00 pCi/L	4
Bellevue	3.75 pCi/L	4
Spokane	11.67 pCi/L	3
Camas	8.00 pCi/L	3
Centralia	7.00 pCi/L	3
Bellingham	4.50 pCi/L	2
Kirkland	4.50 pCi/L	2
Washougal	8.00 pCi/L	1
Ridgefield	5.00 pCi/L	1
Moses Lake	No submissions	0