Seth Kerstetter
(570) 524-4491✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Radon in ZIP code 17887
Last updated
ZIP 17887 lies entirely in Union County, Pennsylvania. EPA’s radon zone for this area: Zone 1, highest potential.
Zone 1 Union County, PA · 100% of the ZIP’s land area
Predicted average indoor screening level above 4 pCi/L.
What this means for homes in 17887
EPA built its zone map county by county in 1993, so every address in 17887 shares Union County’s prediction. The zone is a starting point, not a measurement of your house. Zone 1 areas like this one have a high share of homes above 4 pCi/L, so testing is a priority.
Next: read how to test your home, then check the number with the level calculator.
Radon professionals for 17887
These professionals are listed for Union County that 17887 falls in. Featured listings are paid placements and are labelled.
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Nearby ZIP codes in Union 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 17887?
ZIP 17887 lies in Union County, which EPA places in Zone 1 (highest potential).
Should I test for radon in 17887?
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 17887?
This page lists 1 professional for the county that 17887 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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