Forest Grove, OR Radon Levels

Q: What is the average radon level in Forest Grove, OR?

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is Forest Grove in?

Forest Grove is in Washington County, EPA Zone 2.

Q: How much does radon mitigation cost in Forest Grove?

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

Check local Forest Grove radon levels and find certified testing and mitigation professionals to keep your home safe

Forest Grove, OR Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Washington County, OR

Zip Code 97116

Avg. User Level 3.00 pCi/L

User Tests 1

Located in Washington County within the Portland Metro area, Forest Grove sits on volcanic soils typical of Oregon's Willamette Valley. Radon testing data is currently limited for this community, making individual assessments valuable for homeowners. The area features a mix of older residential neighborhoods and newer suburban development, housing stock that can all benefit from radon evaluation.

3.00

pCi/L average

Below EPA Action Level

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

4.0 EPA

10+

Forest Grove, OR Radon Mitigation

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

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Radon FAQ for Forest Grove, OR

What is the average radon level in Forest Grove, OR?

Based on 1 user-submitted test, the average radon level in Forest Grove is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Forest Grove in?

Forest Grove and the 97116 zip code are in Washington County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Forest Grove?

Radon mitigation in Forest Grove 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 Forest Grove?

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.

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