Branchton, PA Radon Levels

Q: What EPA Radon Zone is Branchton in?

Branchton is in Butler County, EPA Zone 1.

Q: How much does radon mitigation cost in Branchton?

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

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

Branchton, PA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Butler County, PA

Zip Code 16021

Located in Butler County, Branchton sits in Pennsylvania's glaciated Allegheny Plateau region where sedimentary bedrock and glacial deposits create favorable conditions for radon accumulation. The community's mix of older farmhouses and newer residential construction, many with full basements, requires careful attention to radon testing. With limited testing data currently available for zip code 16021, homeowners are encouraged to conduct baseline radon tests to establish safety levels.

9.91

pCi/L area average

Above EPA Action Level

Butler County average: 9.91 pCi/L, based on 11 user-submitted tests across 6 cities in the county. No homeowner readings have been submitted for Branchton itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Branchton, PA Radon Mitigation

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

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Radon Readings Near Branchton, PA

No homeowner tests have been submitted for Branchton yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Grove City	8.0 mi	9.00 pCi/L	2
Karns City	14.9 mi	20.00 pCi/L	1
Butler	15.2 mi	12.40 pCi/L	5
Parker	15.6 mi	20.00 pCi/L	1
New Wilmington	18.2 mi	4.00 pCi/L	1
New Castle	19.4 mi	20.00 pCi/L	1
Evans City	20.5 mi	5.00 pCi/L	1
Zelienople	22.5 mi	5.00 pCi/L	2

Butler County Radon Profile

Because of its underlying geology, Butler County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 6 cities in Butler County average 9.91 pCi/L across 11 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Butler County home regardless of zone or a neighbor's results.

Radon FAQ for Branchton, PA

What EPA Radon Zone is Branchton in?

Branchton and the 16021 zip code are in Butler 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.

Why are radon readings shown from areas near Branchton?

No homeowner radon tests have been submitted for Branchton yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Butler County average—are the best available indicator of local conditions until Branchton homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Branchton?

Radon mitigation in Branchton 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 Branchton?

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.