Milton, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Milton in?

Milton is in Pierce County, EPA Zone 3.

Q: How much does radon mitigation cost in Milton?

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

Pierce County

EPA Zone 3

Positioned in Pierce County within the Seattle metro area, Milton sits on glacial deposits and alluvial soils that typically produce lower radon levels compared to other regions of Washington state. Testing data for zip code 98354 remains limited, though western Washington's geology generally results in readings below national averages. Despite the lower regional risk, homeowners should still consider testing, especially in newer, tighter construction that can trap any radon present.

Milton, WA Radon Mitigation

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

Milton, WA Radon Testing

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

Milton Radon Facts

Key details about the radon risk profile for Milton and the 98354 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Pierce County, WA

Zip Code

98354

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Milton and the 98354 zip code are located in Pierce 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 Milton, WA

What EPA Radon Zone is Milton in?

Milton and the 98354 zip code are in Pierce 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 Milton?

Radon mitigation in Milton 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 Milton?

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