Benton City, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Benton City in?

Benton City is in Benton County, EPA Zone 2.

Q: How much does radon mitigation cost in Benton City?

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

Benton County

EPA Zone 2

Benton City, WA resides in Benton 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. Testing is recommended for all homes in the 99320 zip code area.

Benton City, WA Radon Mitigation

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

Benton City, WA Radon Testing

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

Benton City Radon Facts

Key details about the radon risk profile for Benton City and the 99320 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Benton County, WA

Zip Code

99320

Predicted Screening Level

2–4 pCi/L (Zone 2)

Benton City and the 99320 zip code are located in Benton County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Benton City, WA

What EPA Radon Zone is Benton City in?

Benton City and the 99320 zip code are in Benton 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 Benton City?

Radon mitigation in Benton City 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 Benton City?

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 Washington

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

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.60 pCi/L	5
Seattle	5.25 pCi/L	4
Olympia	5.00 pCi/L	4
Bellevue	3.75 pCi/L	4
Spokane	11.67 pCi/L	3
Camas	8.00 pCi/L	3
Centralia	7.00 pCi/L	3
Bellingham	4.50 pCi/L	2
Kirkland	4.50 pCi/L	2
Washougal	8.00 pCi/L	1
Ridgefield	5.00 pCi/L	1
Moses Lake	No submissions	0