Coos Bay, OR Radon Mitigation and Testing

Q: What is the average radon level in Coos Bay, OR?

Based on 1 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is Coos Bay in?

Coos Bay is in Coos County, EPA Zone 3.

Q: How much does radon mitigation cost in Coos Bay?

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

Avg: 7.00 pCi/L

Coos County

EPA Zone 3

1 user test

Coos Bay is located in Coos County, Oregon. With 1 user-submitted readings averaging 7.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 97420 zip code.

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.

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.

Coos Bay, OR Radon Testing

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

Coos Bay, Oregon Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
7 pCi/L	Coos Bay, OR	100+ Years	Partial Basement	Aug 2024

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

Coos Bay Radon Facts

Key details about the radon risk profile for Coos Bay and the 97420 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Coos County, OR

Zip Code

97420

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Avg. User Submitted Level

7.00 pCi/L

User Tests Submitted

Coos Bay and the 97420 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 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 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