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Radon in Amherst County, Virginia

Amherst County, Virginia, is in EPA radon Zone 2: predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential). Radon laboratories reported 190 building tests here for 2008 to 2017: median 2.9 pCi/L, with 36.8% at or above EPA's 4 pCi/L action level (Virginia 30.8%, US 36.5%).

Zone 2
EPA radon zone (1993 county map)
2.9
median lab test, pCi/L (2008-2017)
36.8%
of lab tests at or above 4 pCi/L
190
buildings tested by labs, 2008-2017

Radon test results in Amherst County

Radon test results on file for Amherst County, VA, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-2017190median 2.9 pCi/L36.8%
Virginia, all counties (labs)2008-201740,388n/a30.8%
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 in nearby counties

CountyEPA zoneLab tests4 pCi/L or more
Buena Vista city, VAZone 1685.7%
Lynchburg city, VAZone 253425.9%
Nelson County, VAZone 27928.7%
Lexington city, VAZone 12418.8%
Rockbridge County, VAZone 19150.9%
Appomattox County, VAZone 14010%

The six counties with the nearest centers.

What to do about radon in Amherst 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. Virginia's state radon program can point you to testers and test kits.

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 Amherst County address

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

Radon in Amherst County: questions

What is the radon level in Amherst County?

The median of the 190 laboratory tests reported for Amherst County (2008 to 2017) was 2.9 pCi/L, and 36.8% of them were at or above 4 pCi/L. These are results of tested buildings; a single home can be far above or below them.

Is Amherst County in radon Zone 1?

No. EPA's 1993 map puts Amherst 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 Amherst County compare with Virginia?

36.8% of laboratory tests in Amherst County were at or above 4 pCi/L for 2008 to 2017, against 30.8% across Virginia (40,388 tests) and 36.5% nationally. 62 of Virginia's 133 counties are in Zone 1.

Should I test for radon in Amherst 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 Amherst 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 Virginia county · Radon map of every state

Data compiled 2026-10-20. County FIPS 51009. County-level screening information, not a radon measurement of any building.