Knox, PA Radon Mitigation and Testing

Q: What EPA Radon Zone is Knox in?

Knox is in Clarion County, EPA Zone 1.

Q: How much does radon mitigation cost in Knox?

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

Clarion County

EPA Zone 1

Positioned in Clarion County within Pennsylvania's Allegheny Plateau region, Knox is built on sedimentary bedrock formations typical of northwestern Pennsylvania. While comprehensive testing data for zip code 16232 is not currently available, residents should test their homes given Pennsylvania's statewide recognition as a high radon potential area.

Knox, PA Radon Mitigation

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

Knox, PA Radon Testing

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

Knox Radon Facts

Key details about the radon risk profile for Knox and the 16232 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Clarion County, PA

Zip Code

16232

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Knox and the 16232 zip code are located in Clarion County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Knox, PA

What EPA Radon Zone is Knox in?

Knox and the 16232 zip code are in Clarion County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Knox?

Radon mitigation in Knox 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 Knox?

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 Pennsylvania

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

City	Avg User Radon Level	Submissions
State College	10.00 pCi/L	14
Chambersburg	10.14 pCi/L	7
Easton	12.33 pCi/L	6
Butler	12.40 pCi/L	5
Dingmans Ferry	5.80 pCi/L	5
Hanover	14.00 pCi/L	4
Mechanicsburg	13.75 pCi/L	4
Greenville	10.75 pCi/L	4
Pittsburgh	9.25 pCi/L	4
Albrightsville	9.00 pCi/L	4
Philadelphia	8.00 pCi/L	4
Lackawaxen	15.33 pCi/L	3
York	11.67 pCi/L	3
Elizabethtown	9.67 pCi/L	3
Johnstown	7.33 pCi/L	3
West Chester	6.67 pCi/L	3
Danville	5.67 pCi/L	3
Springfield	5.67 pCi/L	3
East Stroudsburg	5.00 pCi/L	3
Langhorne	4.67 pCi/L	3