Radon by ZIP

Radon zones in West Virginia

Last updated

EPA’s Map of Radon Zones places 55 West Virginia counties in its three radon potential zones: 20 in Zone 1 (highest), 29 in Zone 2 (moderate), and 6 in Zone 3 (low).

20Zone 1 · Highest potential
29Zone 2 · Moderate potential
6Zone 3 · Low potential

What this means for West Virginia homes

Most West Virginia counties fall in Zone 2. EPA predicts moderate average indoor levels (2 to 4 pCi/L) across much of West Virginia. Many homes will be below the action level, but many will not, and only a test can tell which.

EPA’s guidance is the same everywhere: test your home, fix it if the level is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L. The zone map is from 1993 and should not be used to decide whether a single home needs testing.

West Virginia radon program

EPA lists the following state contact for West Virginia: WV Radiation, Toxics & Indoor Air Division, phone 304-352-5039. Website: www.wvdhhr.org/rtia/radon.asp. State programs can tell you about local testing data, free or discounted test kits, disclosure rules for home sales, and credentialed radon professionals.

West Virginia counties and their EPA radon zones

CountyEPA radon zone
Barbour CountyZone 2
Berkeley CountyZone 1
Boone CountyZone 3
Braxton CountyZone 2
Brooke CountyZone 1
Cabell CountyZone 2
Calhoun CountyZone 2
Clay CountyZone 2
Doddridge CountyZone 2
Fayette CountyZone 2
Gilmer CountyZone 2
Grant CountyZone 1
Greenbrier CountyZone 1
Hampshire CountyZone 1
Hancock CountyZone 1
Hardy CountyZone 1
Harrison CountyZone 2
Jackson CountyZone 2
Jefferson CountyZone 1
Kanawha CountyZone 3
Lewis CountyZone 2
Lincoln CountyZone 2
Logan CountyZone 3
Marion CountyZone 2
Marshall CountyZone 1
Mason CountyZone 2
McDowell CountyZone 3
Mercer CountyZone 1
Mineral CountyZone 1
Mingo CountyZone 3
Monongalia CountyZone 1
Monroe CountyZone 1
Morgan CountyZone 1
Nicholas CountyZone 2
Ohio CountyZone 1
Pendleton CountyZone 1
Pleasants CountyZone 2
Pocahontas CountyZone 1
Preston CountyZone 1
Putnam CountyZone 2
Raleigh CountyZone 2
Randolph CountyZone 2
Ritchie CountyZone 2
Roane CountyZone 2
Summers CountyZone 1
Taylor CountyZone 2
Tucker CountyZone 2
Tyler CountyZone 2
Upshur CountyZone 2
Wayne CountyZone 2
Webster CountyZone 2
Wetzel CountyZone 1
Wirt CountyZone 2
Wood CountyZone 2
Wyoming CountyZone 3

County names follow the 2020 Census. Zones from the EPA Map of Radon Zones (text version). Rows marked “zone of” use the zone EPA gave the predecessor or surrounding county.

Next steps: read how to test your home, check a result with the level calculator, or look up a single address by ZIP code.

Sources

  1. U.S. EPA, EPA Map of Radon Zones (text version)
  2. U.S. EPA, EPA Map of Radon Zones and Supplemental Information (state radon contacts)
  3. U.S. EPA, EPA Maps of Radon Zones and Supporting Documents by State