Widnoon, PA Radon Levels

Q: What EPA Radon Zone is Widnoon in?

Widnoon is in Armstrong County, EPA Zone 1.

Q: How much does radon mitigation cost in Widnoon?

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

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

Widnoon, PA Radon Facts

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

County Armstrong County, PA

Zip Code 16261

This small Armstrong County community in zip code 16261 sits within Pennsylvania's Allegheny Plateau region, featuring Pennsylvanian-age sandstone and shale formations. Testing data is currently insufficient to characterize local radon levels, making individual home testing important for residents. Rural Pennsylvania properties often include older homes with stone foundations and partial basements that can facilitate radon entry.

13.50

pCi/L area average

Above EPA Action Level

Armstrong County average: 13.50 pCi/L, based on 2 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Widnoon 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+

Widnoon, 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 Widnoon, PA

No homeowner tests have been submitted for Widnoon 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
Kittanning	10.3 mi	13.50 pCi/L	2
Karns City	13.3 mi	20.00 pCi/L	1
Parker	15.1 mi	20.00 pCi/L	1
Butler	23.4 mi	12.40 pCi/L	5
Marchand	24.3 mi	14.00 pCi/L	1
Brookville	24.4 mi	8.00 pCi/L	3
Punxsutawney	26.1 mi	20.00 pCi/L	1
Cranberry	26.2 mi	1.00 pCi/L	1

Armstrong County Radon Profile

Armstrong County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Armstrong County average 13.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Armstrong County to test, as levels can differ between neighboring homes.

Radon FAQ for Widnoon, PA

What EPA Radon Zone is Widnoon in?

Widnoon and the 16261 zip code are in Armstrong 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 Widnoon?

No homeowner radon tests have been submitted for Widnoon yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Armstrong County average—are the best available indicator of local conditions until Widnoon 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 Widnoon?

Radon mitigation in Widnoon 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 Widnoon?

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.