Coquille, OR Radon Mitigation and Testing

Q: What EPA Radon Zone is Coquille in?

Coquille is in Coos County, EPA Zone 3.

Q: How much does radon mitigation cost in Coquille?

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

Coos County

EPA Zone 3

Situated in Coos County along Oregon's southern coast, Coquille rests on marine sedimentary formations and coastal alluvial deposits that generally produce lower radon concentrations. With testing data limited for zip code 97423, residents should still consider radon testing, especially in homes with crawl spaces or basements where coastal moisture and soil gases can accumulate. The community's mix of older coastal homes and newer construction presents varying foundation types that may influence radon entry patterns.

Coquille, OR Radon Mitigation

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

Coquille, OR Radon Testing

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

Coquille Radon Facts

Key details about the radon risk profile for Coquille and the 97423 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Coos County, OR

Zip Code

97423

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Coquille and the 97423 zip code are located in Coos 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 Coquille, OR

What EPA Radon Zone is Coquille in?

Coquille and the 97423 zip code are in Coos 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 Coquille?

Radon mitigation in Coquille 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 Coquille?

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 Oregon

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

City	Avg User Radon Level	Submissions
Corvallis	5.60 pCi/L	5
Astoria	9.25 pCi/L	4
La Grande	10.67 pCi/L	3
Bend	3.33 pCi/L	3
Salem	9.00 pCi/L	2
Eugene	7.00 pCi/L	2
Medford	7.00 pCi/L	1
Dundee	6.00 pCi/L	1
Ashland	4.00 pCi/L	1
Portland	4.00 pCi/L	1
Lincoln City	No submissions	0
West Linn	No submissions	0