Thomasville, PA Radon Levels

Q: What EPA Radon Zone is Thomasville in?

Thomasville is in York County, EPA Zone 1.

Q: How much does radon mitigation cost in Thomasville?

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

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

Thomasville, PA Radon Facts

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

County York County, PA

Zip Code 17364

Situated in York County near the Maryland border, this small Pennsylvania community lies within EPA Zone 1, indicating high radon potential due to underlying limestone and shale formations. Housing stock primarily consists of older residential properties with basement foundations typical of south-central Pennsylvania. With limited radon testing data available for the 17364 zip code area, local residents should prioritize home testing to determine individual radon exposure levels.

12.74

pCi/L area average

Above EPA Action Level

York County average: 12.74 pCi/L, based on 23 user-submitted tests across 13 cities in the county. No homeowner readings have been submitted for Thomasville 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+

Thomasville, 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 Thomasville, PA

No homeowner tests have been submitted for Thomasville 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
Dover	5.1 mi	13.00 pCi/L	1
East Berlin	6.9 mi	20.00 pCi/L	1
York	9.2 mi	11.67 pCi/L	3
Seven Valleys	9.4 mi	17.00 pCi/L	1
Hanover	11.0 mi	14.00 pCi/L	4
Dallastown	12.2 mi	6.00 pCi/L	1
Glen Rock	12.8 mi	14.33 pCi/L	3
Shrewsbury	16.3 mi	5.00 pCi/L	1

York County Radon Profile

York 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 13 cities in York County average 12.74 pCi/L across 23 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 York County to test, as levels can differ between neighboring homes.

Radon FAQ for Thomasville, PA

What EPA Radon Zone is Thomasville in?

Thomasville and the 17364 zip code are in York 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 Thomasville?

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

Radon mitigation in Thomasville 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 Thomasville?

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.