Radon levels in Virginia

Verified county-level radon indicators are available for 131 Virginia counties. Select a county for its source period and sample details.

High results are most common in Russell County (67%) and least common in Norfolk city (3%)Share of tests at or above 4 pCi/L by county · Radon test results from laboratories, 2008–2017 · 131 of 134 counties have data
Accomack County: 0% of tests at or above 4 pCi/L · 9 testsAlbemarle County: 25% of tests at or above 4 pCi/L · 2,179 testsAlleghany County: 40% of tests at or above 4 pCi/L · 50 testsAmelia County: 27% of tests at or above 4 pCi/L · 11 testsAmherst County: 37% of tests at or above 4 pCi/L · 247 testsAppomattox County: 10% of tests at or above 4 pCi/L · 50 testsArlington County: 14% of tests at or above 4 pCi/L · 1,101 testsAugusta County: 50% of tests at or above 4 pCi/L · 625 testsBath County: 18% of tests at or above 4 pCi/L · 22 testsBedford County: 23% of tests at or above 4 pCi/L · 749 testsBland County: 46% of tests at or above 4 pCi/L · 13 testsBotetourt County: 42% of tests at or above 4 pCi/L · 575 testsBrunswick County: 39% of tests at or above 4 pCi/L · 38 testsBuchanan County: 25% of tests at or above 4 pCi/L · 20 testsBuckingham County: 14% of tests at or above 4 pCi/L · 29 testsCampbell County: 40% of tests at or above 4 pCi/L · 365 testsCaroline County: 33% of tests at or above 4 pCi/L · 199 testsCarroll County: 62% of tests at or above 4 pCi/L · 89 testsCharles City County: 0% of tests at or above 4 pCi/L · 2 testsCharlotte County: 40% of tests at or above 4 pCi/L · 20 testsChesterfield County: 30% of tests at or above 4 pCi/L · 733 testsClarke County: 48% of tests at or above 4 pCi/L · 350 testsCraig County: 46% of tests at or above 4 pCi/L · 13 testsCulpeper County: 40% of tests at or above 4 pCi/L · 891 testsCumberland County: 17% of tests at or above 4 pCi/L · 12 testsDickenson County: 40% of tests at or above 4 pCi/L · 10 testsDinwiddie County: 35% of tests at or above 4 pCi/L · 20 testsEssex County: 8% of tests at or above 4 pCi/L · 13 testsFairfax County: 19% of tests at or above 4 pCi/L · 8,657 testsFauquier County: 30% of tests at or above 4 pCi/L · 1,199 testsFloyd County: 43% of tests at or above 4 pCi/L · 54 testsFluvanna County: 28% of tests at or above 4 pCi/L · 388 testsFranklin County: 21% of tests at or above 4 pCi/L · 572 testsFrederick County: 44% of tests at or above 4 pCi/L · 2,451 testsGiles County: 57% of tests at or above 4 pCi/L · 174 testsGloucester County: 25% of tests at or above 4 pCi/L · 8 testsGoochland County: 31% of tests at or above 4 pCi/L · 114 testsGrayson County: 45% of tests at or above 4 pCi/L · 47 testsGreene County: 35% of tests at or above 4 pCi/L · 214 testsGreensville County: 0% of tests at or above 4 pCi/L · 2 testsHalifax County: 19% of tests at or above 4 pCi/L · 37 testsHanover County: 23% of tests at or above 4 pCi/L · 165 testsHenrico County: 27% of tests at or above 4 pCi/L · 607 testsHenry County: 36% of tests at or above 4 pCi/L · 115 testsHighland County: 22% of tests at or above 4 pCi/L · 9 testsIsle of Wight County: 33% of tests at or above 4 pCi/L · 3 testsJames City County: 37% of tests at or above 4 pCi/L · 83 testsKing and Queen County: 29% of tests at or above 4 pCi/L · 7 testsKing George County: 45% of tests at or above 4 pCi/L · 488 testsKing William County: 14% of tests at or above 4 pCi/L · 7 testsLancaster County: 13% of tests at or above 4 pCi/L · 8 testsLee County: 50% of tests at or above 4 pCi/L · 14 testsLoudoun County: 27% of tests at or above 4 pCi/L · 4,457 testsLouisa County: 38% of tests at or above 4 pCi/L · 289 testsLunenburg County: 25% of tests at or above 4 pCi/L · 4 testsMadison County: 44% of tests at or above 4 pCi/L · 184 testsMathews County: 67% of tests at or above 4 pCi/L · 3 testsMecklenburg County: 38% of tests at or above 4 pCi/L · 66 testsMiddlesex County: 0% of tests at or above 4 pCi/L · 4 testsMontgomery County: 35% of tests at or above 4 pCi/L · 970 testsNelson County: 29% of tests at or above 4 pCi/L · 122 testsNew Kent County: 31% of tests at or above 4 pCi/L · 13 testsNorthampton County: 0% of tests at or above 4 pCi/L · 8 testsNorthumberland County: 13% of tests at or above 4 pCi/L · 15 testsNottoway County: 25% of tests at or above 4 pCi/L · 8 testsOrange County: 36% of tests at or above 4 pCi/L · 462 testsPage County: 38% of tests at or above 4 pCi/L · 141 testsPatrick County: 55% of tests at or above 4 pCi/L · 53 testsPittsylvania County: 38% of tests at or above 4 pCi/L · 242 testsPowhatan County: 28% of tests at or above 4 pCi/L · 50 testsPrince Edward County: 40% of tests at or above 4 pCi/L · 50 testsPrince George County: 18% of tests at or above 4 pCi/L · 11 testsPrince William County: 32% of tests at or above 4 pCi/L · 4,441 testsPulaski County: 50% of tests at or above 4 pCi/L · 268 testsRappahannock County: 42% of tests at or above 4 pCi/L · 137 testsRichmond County: 24% of tests at or above 4 pCi/L · 29 testsRoanoke County: 22% of tests at or above 4 pCi/L · 1,541 testsRockbridge County: 51% of tests at or above 4 pCi/L · 114 testsRockingham County: 44% of tests at or above 4 pCi/L · 1,714 testsRussell County: 67% of tests at or above 4 pCi/L · 49 testsScott County: 51% of tests at or above 4 pCi/L · 75 testsShenandoah County: 36% of tests at or above 4 pCi/L · 390 testsSmyth County: 61% of tests at or above 4 pCi/L · 123 testsSouthampton County: 0% of tests at or above 4 pCi/L · 2 testsSpotsylvania County: 34% of tests at or above 4 pCi/L · 1,872 testsStafford County: 31% of tests at or above 4 pCi/L · 2,758 testsSurry County: no dataSussex County: 0% of tests at or above 4 pCi/L · 1 testsTazewell County: 40% of tests at or above 4 pCi/L · 372 testsWarren County: 37% of tests at or above 4 pCi/L · 536 testsWashington County: 58% of tests at or above 4 pCi/L · 384 testsWestmoreland County: 11% of tests at or above 4 pCi/L · 56 testsWise County: 28% of tests at or above 4 pCi/L · 53 testsWythe County: 66% of tests at or above 4 pCi/L · 119 testsYork County: 26% of tests at or above 4 pCi/L · 23 testsAlexandria city: 7% of tests at or above 4 pCi/L · 410 testsBristol city: 51% of tests at or above 4 pCi/L · 110 testsBuena Vista city: 86% of tests at or above 4 pCi/L · 7 testsCharlottesville city: 21% of tests at or above 4 pCi/L · 834 testsChesapeake city: 7% of tests at or above 4 pCi/L · 43 testsColonial Heights city: 30% of tests at or above 4 pCi/L · 10 testsCovington city: 40% of tests at or above 4 pCi/L · 5 testsDanville city: 35% of tests at or above 4 pCi/L · 77 testsEmporia city: 50% of tests at or above 4 pCi/L · 2 testsFairfax city: 14% of tests at or above 4 pCi/L · 126 testsFalls Church city: 18% of tests at or above 4 pCi/L · 83 testsFranklin city: 0% of tests at or above 4 pCi/L · 2 testsFredericksburg city: 26% of tests at or above 4 pCi/L · 375 testsGalax city: 39% of tests at or above 4 pCi/L · 18 testsHampton city: 11% of tests at or above 4 pCi/L · 19 testsHarrisonburg city: 33% of tests at or above 4 pCi/L · 599 testsHopewell city: 25% of tests at or above 4 pCi/L · 16 testsLexington city: 19% of tests at or above 4 pCi/L · 32 testsLynchburg city: 26% of tests at or above 4 pCi/L · 753 testsManassas city: 16% of tests at or above 4 pCi/L · 145 testsManassas Park city: 20% of tests at or above 4 pCi/L · 25 testsMartinsville city: 27% of tests at or above 4 pCi/L · 33 testsNewport News city: 7% of tests at or above 4 pCi/L · 30 testsNorfolk city: 3% of tests at or above 4 pCi/L · 73 testsNorton city: 0% of tests at or above 4 pCi/L · 5 testsPetersburg city: 0% of tests at or above 4 pCi/L · 7 testsPoquoson city: no dataPortsmouth city: 0% of tests at or above 4 pCi/L · 2 testsRadford city: 42% of tests at or above 4 pCi/L · 98 testsRichmond city: 28% of tests at or above 4 pCi/L · 520 testsRoanoke city: 26% of tests at or above 4 pCi/L · 1,010 testsSalem city: 34% of tests at or above 4 pCi/L · 286 testsStaunton city: 53% of tests at or above 4 pCi/L · 338 testsSuffolk city: 0% of tests at or above 4 pCi/L · 5 testsVirginia Beach city: 4% of tests at or above 4 pCi/L · 46 testsWaynesboro city: 48% of tests at or above 4 pCi/L · 196 testsWilliamsburg city: 11% of tests at or above 4 pCi/L · 19 testsWinchester city: 45% of tests at or above 4 pCi/L · 773 tests
  • Under 10%
  • 10–20%
  • 20–30%
  • 30–40%
  • 40% or more
  • No data

Counties

CountyTests% ≥ 4 pCi/LMedian (pCi/L)EPA zone (1993)Source
Accomack County90%0.1Zone 3Radon test results from laboratories through 2017
Albemarle County2,17925%2.1Zone 2Radon test results from laboratories through 2017
Alexandria city4107%1.0Zone 3Radon test results from laboratories through 2017
Alleghany County5040%3.0Zone 1Radon test results from laboratories through 2017
Amelia County1127%2.0Zone 1Radon test results from laboratories through 2017
Amherst County24737%2.9Zone 2Radon test results from laboratories through 2017
Appomattox County5010%2.1Zone 1Radon test results from laboratories through 2017
Arlington County1,10114%1.4Zone 2Radon test results from laboratories through 2017
Augusta County62550%4.0Zone 1Radon test results from laboratories through 2017
Bath County2218%2.3Zone 1Radon test results from laboratories through 2017
Bedford County74923%2.1Zone 2Radon test results from laboratories through 2017
Bedford city———Zone 1—
Bland County1346%2.6Zone 1Radon test results from laboratories through 2017
Botetourt County57542%3.3Zone 1Radon test results from laboratories through 2017
Bristol city11051%4.2Zone 1Radon test results from laboratories through 2017
Brunswick County3839%2.8Zone 1Radon test results from laboratories through 2017
Buchanan County2025%2.7Zone 2Radon test results from laboratories through 2017
Buckingham County2914%1.5Zone 1Radon test results from laboratories through 2017
Buena Vista city786%10.4Zone 1Radon test results from laboratories through 2017
Campbell County36540%3.2Zone 1Radon test results from laboratories through 2017
Caroline County19933%2.5Zone 3Radon test results from laboratories through 2017
Carroll County8962%5.0Zone 2Radon test results from laboratories through 2017
Charles City County20%1.1Zone 3Radon test results from laboratories through 2017
Charlotte County2040%3.7Zone 2Radon test results from laboratories through 2017
Charlottesville city83421%1.8Zone 2Radon test results from laboratories through 2017
Chesapeake city437%0.6Zone 3Radon test results from laboratories through 2017
Chesterfield County73330%2.2Zone 1Radon test results from laboratories through 2017
Clarke County35048%3.5Zone 1Radon test results from laboratories through 2017
Colonial Heights city1030%1.1Zone 3Radon test results from laboratories through 2017
Covington city540%3.3Zone 1Radon test results from laboratories through 2017
Craig County1346%2.8Zone 1Radon test results from laboratories through 2017
Culpeper County89140%3.2Zone 2Radon test results from laboratories through 2017
Cumberland County1217%2.1Zone 1Radon test results from laboratories through 2017
Danville city7735%3.0Zone 1Radon test results from laboratories through 2017
Dickenson County1040%3.4Zone 2Radon test results from laboratories through 2017
Dinwiddie County2035%1.9Zone 1Radon test results from laboratories through 2017
Emporia city250%3.1Zone 3Radon test results from laboratories through 2017
Essex County138%3.2Zone 3Radon test results from laboratories through 2017
Fairfax city12614%1.4Zone 1Radon test results from laboratories through 2017
Fairfax County8,65719%1.5Zone 1Radon test results from laboratories through 2017
Falls Church city8318%1.5Zone 1Radon test results from laboratories through 2017
Fauquier County1,19930%2.5Zone 2Radon test results from laboratories through 2017
Floyd County5443%3.3Zone 2Radon test results from laboratories through 2017
Fluvanna County38828%2.5Zone 1Radon test results from laboratories through 2017
Franklin County57221%2.0Zone 2Radon test results from laboratories through 2017
Franklin city20%0.9Zone 2Radon test results from laboratories through 2017
Frederick County2,45144%3.3Zone 1Radon test results from laboratories through 2017
Fredericksburg city37526%2.3Zone 3Radon test results from laboratories through 2017
Galax city1839%3.3Zone 2Radon test results from laboratories through 2017
Giles County17457%4.8Zone 1Radon test results from laboratories through 2017
Gloucester County825%2.0Zone 3Radon test results from laboratories through 2017
Goochland County11431%2.4Zone 1Radon test results from laboratories through 2017
Grayson County4745%3.8Zone 2Radon test results from laboratories through 2017
Greene County21435%2.8Zone 2Radon test results from laboratories through 2017
Greensville County20%0.7Zone 3Radon test results from laboratories through 2017
Halifax County3719%2.2Zone 2Radon test results from laboratories through 2017
Hampton city1911%0.1Zone 3Radon test results from laboratories through 2017
Hanover County16523%1.9Zone 3Radon test results from laboratories through 2017
Harrisonburg city59933%2.4Zone 1Radon test results from laboratories through 2017
Henrico County60727%2.1Zone 3Radon test results from laboratories through 2017
Henry County11536%2.7Zone 1Radon test results from laboratories through 2017
Highland County922%1.1Zone 1Radon test results from laboratories through 2017
Hopewell city1625%2.4Zone 3Radon test results from laboratories through 2017
Isle of Wight County333%1.1Zone 3Radon test results from laboratories through 2017
James City County8337%2.6Zone 3Radon test results from laboratories through 2017
King George County48845%3.6Zone 3Radon test results from laboratories through 2017
King William County714%2.4Zone 3Radon test results from laboratories through 2017
King and Queen County729%2.4Zone 3Radon test results from laboratories through 2017
Lancaster County813%2.5Zone 3Radon test results from laboratories through 2017
Lee County1450%4.9Zone 1Radon test results from laboratories through 2017
Lexington city3219%1.6Zone 1Radon test results from laboratories through 2017
Loudoun County4,45727%1.8Zone 2Radon test results from laboratories through 2017
Louisa County28938%2.8Zone 1Radon test results from laboratories through 2017
Lunenburg County425%0.5Zone 2Radon test results from laboratories through 2017
Lynchburg city75326%2.2Zone 2Radon test results from laboratories through 2017
Madison County18444%3.5Zone 2Radon test results from laboratories through 2017
Manassas city14516%1.9Zone 1Radon test results from laboratories through 2017
Manassas Park city2520%1.4Zone 1Radon test results from laboratories through 2017
Martinsville city3327%1.8Zone 1Radon test results from laboratories through 2017
Mathews County367%4.0Zone 3Radon test results from laboratories through 2017
Mecklenburg County6638%3.0Zone 2Radon test results from laboratories through 2017
Middlesex County40%2.1Zone 3Radon test results from laboratories through 2017
Montgomery County97035%2.5Zone 1Radon test results from laboratories through 2017
Nelson County12229%2.6Zone 2Radon test results from laboratories through 2017
New Kent County1331%2.4Zone 3Radon test results from laboratories through 2017
Newport News city307%1.4Zone 3Radon test results from laboratories through 2017
Norfolk city733%0.5Zone 3Radon test results from laboratories through 2017
Northampton County80%1.0Zone 3Radon test results from laboratories through 2017
Northumberland County1513%1.0Zone 3Radon test results from laboratories through 2017
Norton city50%1.0Zone 2Radon test results from laboratories through 2017
Nottoway County825%2.1Zone 1Radon test results from laboratories through 2017
Orange County46236%2.8Zone 1Radon test results from laboratories through 2017
Page County14138%3.3Zone 1Radon test results from laboratories through 2017
Patrick County5355%5.3Zone 1Radon test results from laboratories through 2017
Petersburg city70%0.5Zone 3Radon test results from laboratories through 2017
Pittsylvania County24238%3.0Zone 1Radon test results from laboratories through 2017
Poquoson city———Zone 3—
Portsmouth city20%1.4Zone 3Radon test results from laboratories through 2017
Powhatan County5028%1.7Zone 1Radon test results from laboratories through 2017
Prince Edward County5040%2.5Zone 2Radon test results from laboratories through 2017
Prince George County1118%1.7Zone 3Radon test results from laboratories through 2017
Prince William County4,44132%2.3Zone 2Radon test results from laboratories through 2017
Pulaski County26850%3.9Zone 1Radon test results from laboratories through 2017
Radford city9842%3.2Zone 1Radon test results from laboratories through 2017
Rappahannock County13742%3.3Zone 2Radon test results from laboratories through 2017
Richmond city52028%2.1Zone 3Radon test results from laboratories through 2017
Richmond County2924%2.1Zone 3Radon test results from laboratories through 2017
Roanoke County1,54122%1.9Zone 1Radon test results from laboratories through 2017
Roanoke city1,01026%2.3Zone 1Radon test results from laboratories through 2017
Rockbridge County11451%4.0Zone 1Radon test results from laboratories through 2017
Rockingham County1,71444%3.3Zone 1Radon test results from laboratories through 2017
Russell County4967%6.7Zone 1Radon test results from laboratories through 2017
Salem city28634%2.8Zone 1Radon test results from laboratories through 2017
Scott County7551%4.0Zone 1Radon test results from laboratories through 2017
Shenandoah County39036%2.7Zone 1Radon test results from laboratories through 2017
Smyth County12361%5.5Zone 1Radon test results from laboratories through 2017
Southampton County20%1.1Zone 3Radon test results from laboratories through 2017
Spotsylvania County1,87234%2.7Zone 1Radon test results from laboratories through 2017
Stafford County2,75831%2.5Zone 1Radon test results from laboratories through 2017
Staunton city33853%4.2Zone 1Radon test results from laboratories through 2017
Suffolk city50%0.9Zone 3Radon test results from laboratories through 2017
Surry County———Zone 3—
Sussex County10%0.1Zone 3Radon test results from laboratories through 2017
Tazewell County37240%2.8Zone 1Radon test results from laboratories through 2017
Virginia Beach city464%0.6Zone 3Radon test results from laboratories through 2017
Warren County53637%2.7Zone 1Radon test results from laboratories through 2017
Washington County38458%4.8Zone 1Radon test results from laboratories through 2017
Waynesboro city19648%3.8Zone 1Radon test results from laboratories through 2017
Westmoreland County5611%1.4Zone 3Radon test results from laboratories through 2017
Williamsburg city1911%0.8Zone 3Radon test results from laboratories through 2017
Winchester city77345%3.3Zone 1Radon test results from laboratories through 2017
Wise County5328%1.3Zone 2Radon test results from laboratories through 2017
Wythe County11966%6.0Zone 1Radon test results from laboratories through 2017
York County2326%1.8Zone 3Radon test results from laboratories through 2017

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