Michael Gelsick
(814) 590-9754✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Radon in ZIP code 15857
Last updated
ZIP 15857 lies entirely in Elk County, Pennsylvania. EPA’s radon zone for this area: Zone 2, moderate potential.
Zone 2 Elk County, PA · 100% of the ZIP’s land area
Predicted average indoor screening level from 2 to 4 pCi/L.
What this means for homes in 15857
EPA built its zone map county by county in 1993, so every address in 15857 shares Elk County’s prediction. The zone is a starting point, not a measurement of your house. In a Zone 2 area many homes are fine and many are not; only a test tells you which yours is.
Next: read how to test your home, then check the number with the level calculator.
Radon professionals for 15857
These professionals are listed for Elk County that 15857 falls in. Featured listings are paid placements and are labelled.
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Get radon quotes from certified pros in ZIP 15857
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Nearby ZIP codes in Elk County
Pennsylvania radon help
PA Dept. of Environmental Protection, Bureau of Radiation Protection (717-783-3594) can help with test kits, local data and credentialed professionals: www.dep.pa.gov/Business/RadiationProtection/RadonDivision/Pages/Radon-in-the-home.aspx.
Frequently asked questions
What is the radon zone for ZIP code 15857?
ZIP 15857 lies in Elk County, which EPA places in Zone 2 (moderate potential).
Should I test for radon in 15857?
Yes. EPA recommends testing every home regardless of zone, because radon varies from house to house. Fix the home if a confirmed result is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L.
Are there certified radon professionals near 15857?
This page lists 1 professional for the county that 15857 falls in, each checked against the state's official certification or licence list.
Free checklist · PDF
Radon Test Checklist
A one-page, step-by-step checklist for running a home radon test right the first time, and what to do with the number.
- Short-term vs. long-term test: which to use
- Closed-house conditions and where to place the kit
- What 2, 4 and 8 pCi/L mean and when to fix
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