Franklin, PA Radon Mitigation and Testing

Q: What is the average radon level in Franklin, PA?

Based on 1 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Franklin in?

Franklin is in Venango County, EPA Zone 1.

Q: How much does radon mitigation cost in Franklin?

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

Avg: 9.00 pCi/L

Venango County

EPA Zone 1

1 user test

Situated in northwestern Pennsylvania's Venango County, Franklin lies in an oil-rich region with sedimentary bedrock formations that can contribute to radon accumulation. Though testing data for zip code 16323 is currently limited, the area's EPA Zone 1 classification indicates relatively lower radon potential. The community's mix of historic and modern homes, many with basement foundations, makes individual radon testing advisable for homeowners.

9.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Franklin, PA Radon Mitigation

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

Franklin, PA Radon Testing

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

Franklin, Pennsylvania Radon Levels

User-submitted radon test readings from homes in the Franklin area.

Radon Level	City	Home Age	Foundation	Submitted
9 pCi/L	Franklin, PA	21-50 Years	Full Basement	Mar 2026

Have a radon test result for Franklin? Submit your reading to help other homeowners.

Franklin Radon Facts

Key details about the radon risk profile for Franklin and the 16323 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Venango County, PA

Zip Code

16323

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

9.00 pCi/L

User Tests Submitted

Franklin and the 16323 zip code are located in Venango 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 Franklin, PA

What is the average radon level in Franklin, PA?

Based on 1 user-submitted test, the average radon level in Franklin is 9.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Franklin in?

Franklin and the 16323 zip code are in Venango 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 Franklin?

Radon mitigation in Franklin 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 Franklin?

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