Columbus, PA Radon Mitigation and Testing

Q: What EPA Radon Zone is Columbus in?

Columbus is in Warren County, EPA Zone 2.

Q: How much does radon mitigation cost in Columbus?

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

Warren County

EPA Zone 2

Located in northwestern Pennsylvania's Warren County, this rural community sits within EPA Zone 2 where moderate radon potential exists. Testing data remains limited for the 16405 area, making professional radon assessment particularly important for homeowners. The region's varied geology and mix of older farmhouses with stone foundations alongside newer construction creates unpredictable radon entry patterns.

Columbus, PA Radon Mitigation

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

Columbus, PA Radon Testing

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

Columbus Radon Facts

Key details about the radon risk profile for Columbus and the 16405 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Warren County, PA

Zip Code

16405

Predicted Screening Level

2–4 pCi/L (Zone 2)

Columbus and the 16405 zip code are located in Warren 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 Columbus, PA

What EPA Radon Zone is Columbus in?

Columbus and the 16405 zip code are in Warren 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 Columbus?

Radon mitigation in Columbus 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 Columbus?

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