Mukilteo, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Mukilteo in?

Mukilteo is in Snohomish County, EPA Zone 3.

Q: How much does radon mitigation cost in Mukilteo?

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

Snohomish County

EPA Zone 3

Coastal Snohomish County's city of Mukilteo sits on Puget Sound bluffs with glacial deposits over marine sedimentary rocks in the Seattle Metro area. The affluent community in zip code 98275 features predominantly newer homes with varied foundation types, from daylight basements to slab-on-grade construction adapted to the sloping waterfront terrain. Despite limited testing data and the EPA Zone 3 lower-risk classification, the diverse geology and foundation types warrant radon testing for accurate assessment.

Mukilteo, WA Radon Mitigation

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

Mukilteo, WA Radon Testing

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

Mukilteo Radon Facts

Key details about the radon risk profile for Mukilteo and the 98275 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Snohomish County, WA

Zip Code

98275

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Mukilteo and the 98275 zip code are located in Snohomish 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 Mukilteo, WA

What EPA Radon Zone is Mukilteo in?

Mukilteo and the 98275 zip code are in Snohomish 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 Mukilteo?

Radon mitigation in Mukilteo 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 Mukilteo?

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