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Radon in Clinton County, New York

Clinton County, New York, is in EPA radon Zone 2: predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential). Radon laboratories reported 65 building tests here for 2008 to 2017: median 1.4 pCi/L, with 8% at or above EPA's 4 pCi/L action level (New York 24.2%, US 36.5%). New York state health records show 12.2% of 377 basement kit tests at or above 4 pCi/L.

Zone 2
EPA radon zone (1993 county map)
1.4
median lab test, pCi/L (2008-2017)
8%
of lab tests at or above 4 pCi/L
65
buildings tested by labs, 2008-2017

Radon test results in Clinton County

Radon test results on file for Clinton County, NY, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-201765median 1.4 pCi/L8%
New York radon program20238median 1.8 pCi/L25%
State health records, basement kit tests1987 on377average 2.3 pCi/L12.2%
State health records, first-floor kit tests1987 on151average 1.0 pCi/L4%
New York, all counties (labs)2008-201765,893n/a24.2%
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 by town in Clinton County

New York state basement kit results by town since 1987, towns with the most tests first.

Town, village or cityBasement testsAverage4 pCi/L or more
Plattsburgh1442.0 pCi/L9.7%
Chazy444.1 pCi/L27.3%
Peru391.8 pCi/L7.7%
Champlain343.2 pCi/L20.6%
Schuyler Falls292.0 pCi/L13.8%
Mooers212.0 pCi/L14.3%
Saranac141.6 pCi/L7.1%
Ausable130.9 pCi/L0%
Dannemora111.3 pCi/L0%
Beekmantown72.9 pCi/L14.3%
Clinton70.9 pCi/L0%
Black Brook62.2 pCi/L16.7%
Ellenburg51.7 pCi/L0%
Altona31.4 pCi/L0%

Radon in nearby counties

CountyEPA zoneLab tests4 pCi/L or more
Grand Isle County, VTZone 33635.8%
Franklin County, NYZone 31921.9%
Chittenden County, VTZone 31,37513.6%
Franklin County, VTZone 215811.9%
Essex County, NYZone 39310.5%
Lamoille County, VTZone 237522.4%

The six counties with the nearest centers.

What to do about radon in Clinton 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 health department 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 Clinton County address

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

Radon in Clinton County: questions

What is the radon level in Clinton County?

The median of the 65 laboratory tests reported for Clinton County (2008 to 2017) was 1.4 pCi/L, and 8% of them were at or above 4 pCi/L. New York state basement kits average 2.3 pCi/L. These are results of tested buildings; a single home can be far above or below them.

Is Clinton County in radon Zone 1?

No. EPA's 1993 map puts Clinton County in Zone 2 (predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential)). EPA says homes in every zone can have high radon and should be tested.

How does radon in Clinton County compare with New York?

8% of laboratory tests in Clinton County were at or above 4 pCi/L for 2008 to 2017, against 24.2% across New York (65,893 tests) and 36.5% nationally. 34 of New York's 62 counties are in Zone 1.

Should I test for radon in Clinton 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 Clinton 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 New York county · Radon map of every state

Data compiled 2026-10-20. County FIPS 36019. County-level screening information, not a radon measurement of any building.