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Radon in Huntingdon County, Pennsylvania

Huntingdon County, Pennsylvania, is in EPA radon Zone 1: predicted average indoor radon screening level greater than 4 pCi/L (highest potential). Radon laboratories reported 250 building tests here for 2008 to 2017: median 5.0 pCi/L, with 56.5% at or above EPA's 4 pCi/L action level (Pennsylvania 41.1%, US 36.5%). Pennsylvania state records have 4,734 test results on file for the county, median 3.8 pCi/L, 49% at or above 4 pCi/L.

Zone 1
EPA radon zone (1993 county map)
5.0
median lab test, pCi/L (2008-2017)
56.5%
of lab tests at or above 4 pCi/L
250
buildings tested by labs, 2008-2017

Radon test results in Huntingdon County

Radon test results on file for Huntingdon County, PA, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-2017250median 5.0 pCi/L56.5%
Pennsylvania state records, every reported test1986 to 2026-074,734median 3.8 pCi/L49%
Pennsylvania, all counties (labs)2008-2017173,284n/a41.1%
United States (labs)2008-20171,408,802n/a36.5%

Test results describe buildings whose owners chose to test and whose results reached the lab or agency, not a random sample; small counts swing widely. State and US shares are computed from county counts and percents. The laboratory data comes from national radon testing laboratories and supplements EPA's zone map.

Radon levels by ZIP code in Huntingdon County

Pennsylvania state results for the ZIP codes with 10 or more tests reported in Huntingdon County, 1986 to 2026-07.

ZIP codeTestsMedian4 pCi/L or more
166111713.3 pCi/L46.2%
16621503.1 pCi/L42%
16622241.4 pCi/L33.3%
16623433.2 pCi/L48.8%
166471488.9 pCi/L66.9%
166522,6583.5 pCi/L45.3%
166571334.2 pCi/L53.4%
166691564.8 pCi/L58.3%
16674232.1 pCi/L21.7%
16683925.5 pCi/L60.9%
16685202.6 pCi/L35%
16686656.0 pCi/L56.9%
168651027.0 pCi/L63.7%
168773855.1 pCi/L59.5%
170521113.5 pCi/L43.2%
17060524.5 pCi/L57.7%
170661412.7 pCi/L36.9%
17213181.5 pCi/L44.4%
17239264.2 pCi/L50%
17243553.4 pCi/L41.8%
17255494.1 pCi/L53.1%
17260516.2 pCi/L70.6%
17264966.8 pCi/L64.6%

Radon in nearby counties

CountyEPA zoneLab tests4 pCi/L or more
Blair County, PAZone 183645.2%
Mifflin County, PAZone 133167.1%
Juniata County, PAZone 121367.3%
Centre County, PAZone 11,23667%
Fulton County, PAZone 19069.7%
Franklin County, PAZone 13,65863.6%

The six counties with the nearest centers.

What to do about radon in Huntingdon County

Test the building. EPA recommends fixing a home at 4 pCi/L or more and considering a fix between 2 and 4 pCi/L, and says there is no known safe level of exposure. The state environmental protection agency runs the state's radon program.

Buying here? The Environmental Records Report lists this county's radon zone and test results with the flood zone, mapped faults, power lines and federal contamination records near the address.

Check one Huntingdon County address

Environmental Records Report, $29. PDF and JSON, usually ready in about a minute.

Radon in Huntingdon County: questions

What is the radon level in Huntingdon County?

The median of the 250 laboratory tests reported for Huntingdon County (2008 to 2017) was 5.0 pCi/L, and 56.5% of them were at or above 4 pCi/L. Pennsylvania's 4,734 state results have a median of 3.8 pCi/L. These are results of tested buildings; a single home can be far above or below them.

Is Huntingdon County in radon Zone 1?

Yes. EPA's 1993 Map of Radon Zones puts Huntingdon County in Zone 1, the counties with a predicted average indoor radon screening level above 4 pCi/L.

How does radon in Huntingdon County compare with Pennsylvania?

56.5% of laboratory tests in Huntingdon County were at or above 4 pCi/L for 2008 to 2017, against 41.1% across Pennsylvania (173,284 tests) and 36.5% nationally. 49 of Pennsylvania's 67 counties are in Zone 1.

Should I test for radon in Huntingdon County?

Yes. EPA recommends testing every home whatever its zone: "This map should not be used to determine if individual homes need to be tested." Fix the home at 4 pCi/L or more and consider a fix between 2 and 4 pCi/L; EPA says there is no known safe level of radon exposure.

More for Huntingdon County

Other free hazard lookups

All of these, plus wetlands, FEMA hazard ratings and the federal contamination lists, are in the Environmental Records Report for any US address ($29).

Radon in every Pennsylvania county · Radon map of every state

Data compiled 2026-10-20. County FIPS 42061. County-level screening information, not a radon measurement of any building.