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Greenville, PA Radon Levels

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


Greenville, PA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Mercer County, PA
Zip Code 16125
Avg. User Level 10.80 pCi/L
User Tests 4

Northwestern Pennsylvania's Mercer County community of Greenville sits on shale and sandstone bedrock that can produce significant radon levels. Testing data from zip code 16125 reveals an average of 10.75 pCi/L, well above the EPA action threshold, with readings ranging from 8.0 to 17.0 pCi/L. Given these elevated levels and the area's older housing stock with stone and block foundations, homeowners should prioritize radon testing and mitigation systems.

10.80
pCi/L average
Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Greenville, PA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Greenville, PA Radon Mitigation

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

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Greenville, PA Radon Levels

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

Radon LevelCityHome AgeFoundation
9 pCi/L Greenville, PA 51-99 Years Full Basement
8 pCi/L Greenville, PA 51-99 Years Partial Basement
17 pCi/L greenville, PA 0-20 Years Full Basement

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

Radon Readings Near Greenville, PA

Compare radon levels in Greenville with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Transfer 6.1 mi 5.50 pCi/L 2
Sharpsville 10.7 mi 9.00 pCi/L 1
Hermitage 12.6 mi 6.00 pCi/L 2
Conneaut Lake 15.1 mi 7.00 pCi/L 1
New Wilmington 18.7 mi 4.00 pCi/L 1
Pulaski 22.1 mi 9.00 pCi/L 1
Grove City 22.6 mi 9.00 pCi/L 2
Saegertown 25.1 mi 9.00 pCi/L 1

Mercer County Radon Profile

Mercer County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 6 cities in Mercer County average 8.08 pCi/L across 12 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Mercer County.

Radon FAQ for Greenville, PA

What is the average radon level in Greenville, PA?
Based on 4 user-submitted tests, the average radon level in Greenville is 10.80 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 Greenville in?
Greenville and the 16125 zip code are in Mercer 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 Greenville?
Radon mitigation in Greenville 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 Greenville?
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.