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Radon Levels, Testing and Mitigation in West Virginia

West Virginia has 55 counties, with 20 classified as EPA Zone 1 (highest risk). With an average radon level of 8.89 pCi/L, West Virginia state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.

West Virginia is the 41st most expansive state in terms of size and the 38th most populous.

West Virginia does have an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.

8.89
Avg. pCi/L
55
Counties
20
Zone 1 Counties

West Virginia Radon Map

West Virginia radon levels by county
Zone 1 — High
Zone 2 — Moderate
Zone 3 — Low

West Virginia Metro Areas

Explore radon data organized by metro region, including average levels, hotspot cities, and local mitigation professionals.

Charleston Metro
5 cities
Hagerstown Metro
5 cities
Huntington Metro
5 cities
Washington Metro
5 cities

Most Active Radon Markets in West Virginia

Cities with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Charles Town 8.10 pCi/L 10
Berkeley Springs 7.70 pCi/L 10
Martinsburg 16.00 pCi/L 8
Harpers Ferry 6.57 pCi/L 7
Ridgeley 9.00 pCi/L 5
Shepherdstown 6.25 pCi/L 4
Kearneysville 5.50 pCi/L 2
Ranson 14.00 pCi/L 1
Morgantown 5.00 pCi/L 1
Charleston 3.00 pCi/L 1

West Virginia Counties by EPA Radon Zone

All 55 West Virginia counties with their EPA radon zone classification and user-submitted average radon levels.

Zone 1 — High Risk
Predicted avg. indoor levels > 4.0 pCi/L
Zone 1 20 counties
Berkeley County Zone 1
Avg: 15.2 pCi/L
Brooke County Zone 1
Avg: 4.0 pCi/L
Grant County Zone 1
Avg: 4.0 pCi/L
Greenbrier County Zone 1
Avg: 3.0 pCi/L
Hampshire County Zone 1
Avg: 5.0 pCi/L
Hancock County Zone 1
Avg: 8.0 pCi/L
Hardy County Zone 1
Avg: 20.0 pCi/L
Jefferson County Zone 1
Avg: 7.4 pCi/L
Marshall County Zone 1
Avg:
Mercer County Zone 1
Avg: 13.0 pCi/L
Mineral County Zone 1
Avg: 10.1 pCi/L
Monongalia County Zone 1
Avg: 7.5 pCi/L
Monroe County Zone 1
Avg:
Morgan County Zone 1
Avg: 8.7 pCi/L
Ohio County Zone 1
Avg: 11.7 pCi/L
Pendleton County Zone 1
Avg: 4.0 pCi/L
Pocahontas County Zone 1
Avg:
Preston County Zone 1
Avg: 4.0 pCi/L
Summers County Zone 1
Avg:
Wetzel County Zone 1
Avg:
Zone 2 — Moderate Risk
Predicted avg. indoor levels 2–4 pCi/L
Zone 2 27 counties
Barbour County Zone 2
Avg:
Braxton County Zone 2
Avg:
Cabell County Zone 2
Avg:
Clay County Zone 2
Avg:
Fayette County Zone 2
Avg: 3.0 pCi/L
Gilmer County Zone 2
Avg:
Harrison County Zone 2
Avg: 4.5 pCi/L
Jackson County Zone 2
Avg: 3.0 pCi/L
Lewis County Zone 2
Avg:
Lincoln County Zone 2
Avg:
Marion County Zone 2
Avg: 9.0 pCi/L
Mason County Zone 2
Avg:
Nicholas County Zone 2
Avg:
Pleasants County Zone 2
Avg:
Putnam County Zone 2
Avg:
Raleigh County Zone 2
Avg:
Randolph County Zone 2
Avg: 5.0 pCi/L
Ritchie County Zone 2
Avg:
Roane County Zone 2
Avg:
Taylor County Zone 2
Avg:
Tucker County Zone 2
Avg: 5.0 pCi/L
Tyler County Zone 2
Avg:
Upshur County Zone 2
Avg: 6.0 pCi/L
Wayne County Zone 2
Avg:
Webster County Zone 2
Avg:
Wirt County Zone 2
Avg:
Wood County Zone 2
Avg: 4.0 pCi/L
Zone 3 — Low Risk
Predicted avg. indoor levels < 2 pCi/L
Zone 3 8 counties
Boone County Zone 3
Avg:
Calhoun County Zone 3
Avg:
Doddridge County Zone 3
Avg:
Kanawha County Zone 3
Avg: 3.0 pCi/L
Logan County Zone 3
Avg:
McDowell County Zone 3
Avg:
Mingo County Zone 3
Avg:
Wyoming County Zone 3
Avg:

West Virginia Cities & Towns

Browse radon data for individual cities across West Virginia. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.

Adrian Advent Albright Alderson Alkol Alma Alum Bridge Alum Creek Amherstdale Amigo Amma Anawalt Ansted Apple Grove Arbovale Arnett Arnoldsburg Artie Asbury Ashford Ashton Athens Auburn Augusta Aurora Baisden Baker Ballard Barboursville Bartow Baxter Beaver Beckley Beeson Belington Belle Belleville Belmont Belva Benwood Berea Berkeley Springs Berwind Bethany Beverly Bickmore Big Bend Big Creek Big Run Big Springs Bim Birch River Blacksville Bloomery Bloomingrose Blount Bluefield Bob White Bolt Bomont Bowden Bramwell Branchland Brandywine Breeden Brenton Bretz Bridgeport Brohard Bruceton Mills Buckeye Buckhannon Buffalo Bunker Hill Burlington Burnsville Burton Cabin Creek Cabins Cairo Caldwell Calvin Camden Camden On Gauley Cameron Camp Creek Canvas Capon Bridge Cass Cedar Grove Cedarville Center Point Chapmanville Charles Town Charleston Charmco Chauncey Chester Chloe Circleville Clarksburg Clay Clear Creek Clear Fork Clendenin Cleveland Clothier Coal City Coal Mountain Coalton Colcord Colliers Comfort Cool Ridge Copen Costa Cottageville Cowen Coxs Mills Crab Orchard Craigsville Crawford Crawley Creston Crum Culloden Cyclone Dallas Danese Daniels Danville Davin Davis Davisville Davy Delbarton Delray Diana Dille Dingess Dixie Dorothy Dry Creek Dryfork Duck Dunbar Dunlow Dunmore Durbin East Bank East Lynn Edgarton Edmond Eglon Elbert Elizabeth Elk Garden Elkins Elkview Ellamore Ellenboro Elton Enterprise Erbacon Eskdale Evans Exchange Fairdale Fairmont Fairview Falling Rock Falling Waters Farmington Fayetteville Fenwick Fisher Flat Top Flatwoods Flemington Follansbee Folsom Forest Hill Fort Ashby Fort Gay Foster Frametown Frankford Franklin Fraziers Bottom Freeman French Creek Friendly Gallagher Gallipolis Ferry Gandeeville Gap Mills Gassaway Gauley Bridge Gay Genoa Gerrardstown Ghent Gilbert Gilboa Given Glady Glen Glen Dale Glen Daniel Glen Easton Glen Fork Glen Jean Glen Rogers Glengary Glenville Glenwood Gordon Gormania Grafton Grantsville Grassy Meadows Great Cacapon Green Bank Green Spring Greenville Griffithsville Hacker Valley Hambleton Hamlin Hanover Hansford Harman Harpers Ferry Harrisville Harts Heaters Hedgesville Helvetia Henderson Hendricks Herndon Hernshaw Hewett Hico High View Hillsboro Hinton Holden Horner Hundred Huntington Hurricane Huttonsville Iaeger Independence Indore Inwood Ireland Isaban Ivydale Jacksonburg Jane Lew Jeffrey Jesse Jolo Josephine Julian Jumping Branch Kanawha Falls Kanawha Head Kearneysville Kegley Kenna Kenova Kerens Kermit Keyser Kiahsville Kimberly Kincaid Kingwood Lahmansville Lake Lansing Lashmeet Lavalette Layland Le Roy Left Hand Leivasy Lenore Leon Lerona Lesage Lester Letart Levels Lewisburg Liberty Lindside Linn Little Birch Littleton Lizemores Logan Lookout Looneyville Lost City Lost Creek Lumberport Lyburn Maben Mabie Macfarlan Madison Maidsville Mammoth Man Mannington Marlinton Martinsburg Mason Masontown Matewan Matheny Mathias Matoaka Maxwelton Maysel Maysville Mcmechen Meadow Bridge Meadow Creek Meadowbrook Metz Middlebourne Midkiff Milam Mill Creek Millstone Millville Millwood Milton Mineral Wells Moatsville Mohawk Monterville Montgomery Montrose Moorefield Morgantown Moundsville Mount Alto Mount Carbon Mount Clare Mount Hope Mount Lookout Mount Nebo Mount Storm Mount Zion Mullens Munday Myra Nallen Naoma Napier Nebo Nellis Nettie New Creek New Cumberland New Martinsville New Milton Newburg Newell Newton Nimitz Nitro Normantown North Spring Northfork Oak Hill Oceana Odd Old Fields Omar Ona Orgas Orlando Orma Paden City Palestine Panther Parkersburg Parsons Paw Paw Paynesville Pecks Mill Pence Springs Pennsboro Petersburg Peterstown Petroleum Peytona Philippi Pickens Piedmont Pine Grove Pineville Pipestem Poca Point Pleasant Points Pond Gap Pool Porters Falls Powellton Prichard Princeton Princewick Procious Proctor Pullman Purgitsville Pursglove Quinwood Rachel Racine Rainelle Ranger Ranson Ravencliff Ravenswood Raysal Reader Red Creek Red House Reedsville Reedy Renick Rhodell Richwood Ridgeley Ridgeview Rio Ripley Riverton Rivesville Robson Rock Rock Cave Rock Creek Rock View Rockport Romney Ronceverte Rosedale Rowlesburg Rupert Saint Albans Saint Marys Salem Salt Rock Sand Fork Sandstone Sandyville Saulsville Saxon Scarbro Scott Depot Secondcreek Selbyville Seneca Rocks Seth Shady Spring Shanks Shenandoah Junction Shepherdstown Shinnston Shock Simon Sinks Grove Sistersville Slab Fork Slanesville Slatyfork Smithfield Smithville Smoot Sod Southside Spanishburg Spencer Springfield Spurlockville Squire Stephenson Sugar Grove Sumerco Summersville Summit Point Surveyor Sutton Swiss Sylvester Talcott Tallmansville Terra Alta Thomas Thornton Thurmond Tioga Tornado Triadelphia Troy Tunnelton Turtle Creek Twilight Union Upper Tract Upperglade Valley Bend Valley Grove Valley Head Van Verner Victor Vienna Volga Waiteville Walker Walkersville Wallace Wallback Walton Wana War Wardensville Washington Waverly Wayne Wayside Webster Springs Weirton Welch Wellsburg West Columbia West Hamlin West Milford West Union Weston Wharncliffe Wharton Wheeling White Oak White Sulphur Springs Whitesville Wiley Ford Williamsburg Williamson Williamstown Wilsonburg Wilsondale Winfield Winifrede Wolfcreek Woodville Worthington Wyoming Yawkey Yellow Spring Yolyn

Frequently Asked Questions About Radon in West Virginia

What radon level is considered "high"?
The EPA action level is 4.0 pCi/L — many homeowners also choose to fix levels between 2.0 and 4.0 pCi/L. Any home with levels at or above 4.0 pCi/L should be mitigated.
How much does radon mitigation cost in West Virginia?
Radon mitigation typically costs between $800 and $2,500, depending on foundation type and radon severity. A standard sub-slab depressurization system usually falls in the $1,000–$1,500 range.
Does mitigation actually work?
Yes — properly installed systems typically reduce radon levels by up to 99%. A post-mitigation test confirms the system is working correctly, and many homeowners re-test periodically.
Should I test again after mitigation?
Yes. A post-mitigation test is the proof your system is working. The EPA recommends testing within 30 days of installation and retesting every two years.
What EPA Radon Zone is my West Virginia county in?
West Virginia counties are classified into three EPA Radon Zones. Zone 1 (highest risk, >4 pCi/L) indicates the most concern. Zone 2 (moderate, 2–4 pCi/L) and Zone 3 (lowest, <2 pCi/L) round out the classification. Use the county directory above to find your specific county's zone and data.

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