Call For A Free Quote: 1-800-299-3578 (toll free) | 541-203-3740 (local)

Coos Bay, OR Radon Levels

Check local Coos Bay radon levels and find certified testing and mitigation professionals to keep your home safe


Coos Bay, OR Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Coos County, OR
Zip Code 97420
Avg. User Level 7.00 pCi/L
User Tests 1

This coastal Oregon city in Coos County has recorded an average radon level of 7.0 pCi/L, significantly exceeding the EPA action threshold. Despite its Pacific coastal location, Coos Bay demonstrates that radon can be a concern even in areas not traditionally associated with high readings. The area's marine terrace geology and varied housing types, from coastal cottages to modern construction, can contribute to unexpected radon accumulation.

7.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Coos Bay, OR. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Coos Bay, OR Radon Mitigation

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

Need Radon Mitigation or Testing in Coos Bay?

  • 100% Free, No-Obligation Quotes
  • Matches You with State-Licensed Coos County Pros
1-800-299-3578 541-203-3740 (local) Toll-free · Mon–Fri 8am–6pm ET

Coos Bay, OR Radon Levels

User-submitted radon test readings from homes in the Coos Bay area.

Radon LevelCityHome AgeFoundation
7 pCi/L Coos Bay, OR 100+ Years Partial Basement

Have a radon test result for Coos Bay? Submit your reading to help other homeowners.

Radon FAQ for Coos Bay, OR

What is the average radon level in Coos Bay, OR?
Based on 1 user-submitted test, the average radon level in Coos Bay is 7.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Coos Bay in?
Coos Bay and the 97420 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 Coos Bay?
Radon mitigation in Coos Bay 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 Coos Bay?
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 in Oregon with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
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