Borough, York County

Radon Mitigation in Felton, PA

Updated September 30, 2026

Felton is a borough in York County with about 453 residents and 191 homes, median year built 1938. It sits next to Chanceford Township. The borough was incorporated in 1899. 65.2% of PA DEP radon tests in its ZIP codes came back at or above the action level, above the county's 52.5%.

What the PA DEP test records show for Felton

ZIP 17322 covers essentially all of Felton, so these numbers are about as local as public radon data gets.

Half of the story is the median. The other half is the tail: 43% of tests here were 10 pCi/L or higher and 26.3% were 20 or higher. The top reading on record in these ZIP codes is 445 pCi/L. Neighboring houses can differ by a factor of ten, so none of this tells you what your house is. It tells you the odds are high enough that a $15 to $30 test kit is worth buying.

Tests people chose to run, not a random survey. Details on the York County radon levels page.

Basement readings versus first-floor readings

In ZIP 17322, basement tests have a median of 8.8 pCi/L, while tests taken on the first floor have a median of 3 pCi/L (72 first-floor tests). The basement number runs 2.9 times the first-floor number, which is the usual pattern: radon comes up from the soil, so it is strongest at the lowest level and gets diluted as it moves up through the house.

It also explains why two neighbors can get very different results. One tested a finished basement, the other tested a first-floor bedroom. For a decision about mitigation, the test that counts is the one from the lowest level anyone spends time in.

Radon results by decade in ZIP 17322

The share peaked in the 2000s at 68.5% and sits at 62.9% for tests since 2020. That is a small move, well within what you'd expect from a shifting mix of home-sale tests and retests. 159 tests have been logged in 17322 since 2020, so people here are still testing.

Housing in Felton and what it means for a system

Census Bureau, American Community Survey 2020 to 2024:

50.8% of the homes in Felton were built before 1940, against 18.3% county-wide. Houses that old usually sit on stone or early block foundations with no vapor barrier and plenty of joints, which gives soil gas more ways in. They are still very fixable. The installer just spends more time sealing, and sometimes needs a second suction point, which is why these jobs tend to land toward the upper end of the cost range.

88% of homes in Felton are single-family detached. A detached house with a basement is the easiest layout to mitigate: one suction point through the slab, a fan outside or in the garage, and a vent above the roof line. It is the standard sub-slab depressurization job covered step by step on our mitigation process page, and it usually lands in the middle of the cost range.

Cost-wise, expect older houses in Felton to land in the $1,200 to $2,500 part of the range once sealing and a possible second suction point are counted. Newer houses are usually the standard $800 to $1,500 job. Full ranges on the cost page.

Where we work in Felton

Public schools here are part of Red Lion Area School District. The borough was incorporated in 1899.

Installers must hold a PA DEP radon mitigation certification (how to check), and permit questions go to the borough office at feltonboroughpa.com.

Common questions

Is radon a problem in Felton?

Yes. PA DEP has 952 tests on record from the ZIP code covering Felton, and 65.2% of them came back at or above the EPA's 4.0 pCi/L action level. 26.3% were at 20 pCi/L or more. The county-wide rate is 52.5%.

What is the average radon level in ZIP 17322?

The median of 952 PA DEP tests in ZIP 17322 is 7.6 pCi/L and the mean is 21.1 pCi/L. A mean that far above the median means a long tail of very high readings, topping out at 445 pCi/L.

Nearby

Cross Roads 65.2%, Winterstown 61.6%, North Hopewell Township 62.2%, East Hopewell Township 64.6%, Chanceford Township 62%. Share of PA DEP tests at or above 4.0 pCi/L, against 65.2% here.