Grand Ronde, OR Radon Mitigation and Testing

Q: What EPA Radon Zone is Grand Ronde in?

Grand Ronde is in Polk County, EPA Zone 3.

Q: How much does radon mitigation cost in Grand Ronde?

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

Polk County

EPA Zone 3

Positioned in Polk County within Oregon's Willamette Valley, Grand Ronde sits in an EPA Zone 3 area where volcanic soils and sedimentary deposits generally produce moderate radon potential. Testing data is currently limited for this 97347 zip code community, making home radon testing advisable for residents. The valley's mix of older rural homes and newer construction creates varying foundation types that can influence radon entry rates.

Grand Ronde, OR Radon Mitigation

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

Grand Ronde, OR Radon Testing

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

Grand Ronde Radon Facts

Key details about the radon risk profile for Grand Ronde and the 97347 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Polk County, OR

Zip Code

97347

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Grand Ronde and the 97347 zip code are located in Polk 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 Grand Ronde, OR

What EPA Radon Zone is Grand Ronde in?

Grand Ronde and the 97347 zip code are in Polk 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 Grand Ronde?

Radon mitigation in Grand Ronde 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 Grand Ronde?

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