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An independent directory built from Pennsylvania DEP certification recordsLists dated Oct 1, 2026 · About our data

Radon testing & mitigation in McKean County, PA

27% of basement tests here came back at or above 4 pCi/L, well below the statewide 37%. That means about one in 4 homes tested needs a fix.

McKean County radon test data

McKean27%
Statewide37%

Share of basement tests ≥ 4 pCi/L

2.1median basement pCi/L
1,583basement tests on record
#65of 67 PA counties by share ≥ 4

First floor: 8% of 283 tests ≥ 4 pCi/L, median 1.0

Source: computed 2026-10-11 from PA DEP's Radon Test Results, Sept 1986 - Current (data.pa.gov, public domain). Counts tests, not homes: repeat and post-mitigation tests are included. Only a test tells you your home's level.

0 DEP-certified firms have a business address in McKean County (0 offer mitigation), with 0 certified individuals between them. Get free quotes

No DEP-certified firms list an address in this county. Firms based in the neighboring counties below often serve nearby areas.

Neighboring counties

Cameron (0 firms) · Elk (1 firms) · Potter (0 firms) · Warren (1 firms). Firms often serve across county lines.

Adjacency from U.S. Census Bureau county adjacency file.

Want firms to contact you?One request to McKean mitigatorsRequest quotes