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Virginia Radon Map and Levels by County

Virginia's counties span all three EPA radon zones. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

Predicted
62 of 133counties in Zone 1, EPA's highest radon zone
Measured
By countyCDC publishes Virginia's test figures by county: 132 of 133 counties have one.
Your home
Test to knowNo area figure here is a reading of your home.
How to test this homeFind a certified tester

The data

Virginia, At a glance

Virginia at a glance

Predicted: EPA radon zone

133 of 133 counties classified

EPA classifies counties, not states. Of the 133 counties in Virginia with a zone, 62 are in Zone 1, 28 in Zone 2 and 43 in Zone 3.

  • Zone 1: Highest predicted potentialgreater than 4 pCi/L62 of 133 counties · 46.6%
  • Zone 2: Moderate predicted potential2 to 4 pCi/L28 of 133 counties · 21.1%
  • Zone 3: Lower predicted potentialless than 2 pCi/L43 of 133 counties · 32.3%

An EPA radon zone describes predicted potential across a whole county. It is not intended to determine whether any individual home should be tested, and homes with elevated levels occur in all three zones. EPA recommends testing every home regardless of zone, and testing is the only way to know the radon level in a specific building.

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

CDC test figures, county by county

CDC publishes Virginia's radon test figures by county: 132 of its 133 counties have one. Each one's share is in the county list.

Virginia, Counties

Virginia counties by EPA zone

Predicted

Virginia's radon map, then all 133 counties by the zone EPA predicts for each, highest reported share of tests at or above 4 pCi/L first. Each has its own report.

Virginia radon map by county: EPA radon zones. Map of Virginia's 132 counties shaded by EPA radon zone: Zone 1 in red-orange, Zone 2 in amber, Zone 3 in pale sand. 62 in Zone 1, 28 in Zone 2, 43 in Zone 3.
Virginia radon map by countyEPA radon zones for Virginia's counties: 62 counties in Zone 1, 28 counties in Zone 2, 43 counties in Zone 3.Predicted potential for each county, not a reading of any home. Homes with elevated levels of radon have been found in all three zones.

Zone 1: highest predicted potential62

Local help

Virginia, Local resources

Local resources in Virginia

Who to ask in Virginia: its radon program, test kits and professionals.

What Virginia's program says
Phone
(804) 864-8161
Email
Radon@vdh.virginia.gov
Licensing of radon professionals
The Code of Virginia requires that Radon testers and mitigators be currently certified by either the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB).

Radon Action Brief

National Radon Action MonthPre-sale

The radon brief for your Virginia county, in one dated file.

  • Your area's radon record, explained.
  • Your plan to test this week.
  • Fix costs and pros near you.

Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25

Get your Virginia county's BriefSee a free sample

Area data, not a test of the building.

What it means

Virginia, Questions

Questions about radon in Virginia

Common questions

9 questions, answered from the figures above

Is radon a problem in Virginia?

EPA's Map of Radon Zones places 62 of the 133 Virginia counties it classifies in Zone 1, the highest predicted potential, 28 in Zone 2 and 43 in Zone 3. An EPA radon zone describes predicted potential across a whole county. It is not intended to determine whether any individual home should be tested, and homes with elevated levels occur in all three zones. EPA recommends testing every home regardless of zone, and testing is the only way to know the radon level in a specific building.

Virginia on the radon mapRadon levels by state

Who does radon mitigation in Virginia?

Radon411's Virginia directory lists 1 radon business for testing, mitigation or both, each with the licensing list it was read from. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional.

How radon mitigation worksWhat mitigation costsRadon professionals in Virginia

How do I get a radon test in Virginia?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. The Virginia radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeFree and low-cost kits by stateVirginia radon program

Which Virginia counties are in EPA radon Zone 1?

62 counties are in Zone 1: Alleghany County, Amelia County, Appomattox County, Augusta County, Bath County, Bland County, Botetourt County, Bristol city, and 54 more in the county table on this page. Zone 1 is EPA's class for highest predicted potential, a predicted average indoor screening level greater than 4 pCi/L. A zone is a prediction for a county, not a measurement of any home.

Radon in Alleghany CountyRadon in Amelia CountyRadon in Appomattox County

Which Virginia counties have the highest radon?

133 of Virginia's 133 counties have an EPA radon zone published here. Radon411 will not rank counties on data it does not hold, and a zone is a prediction for an area rather than a measurement of any building.

What share of radon tests in Virginia are high?

CDC has published no statewide radon testing statistics for Virginia, so we cannot give a figure. Where CDC does publish one, the percentage describes radon tests reported to CDC, not homes.

Which EPA region is Virginia in?

Virginia is in EPA Region 3: Mid-Atlantic.

Do I need to test my home in Virginia?

Yes, wherever you live in the state. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L.

Why does this page show coverage rather than one radon level for Virginia?

A statewide figure averages counties with very different geology and very different numbers of reported tests, so it hides more than it shows. The county report is the level at which the EPA zone, the geologic potential and the reported testing statistics are actually published, which is why the county table above links to every one of them.

If you own, buy, sell or rent

What these figures mean for each reader, with the guide that covers it

The zone counts on this page describe counties across Virginia. They are predictions for areas, and none of them measures your building.

Virginia in figures

The figures above, said in words

What the published data says about Virginia, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places 62 of Virginia's 133 counties in Zone 1, 28 in Zone 2 and 43 in Zone 3.

      Zone 1 counties, A to Z, begin with Alleghany County, Amelia County and Appomattox County; the county section below lists all 62.

    • Compared

      Calculated by Radon411

      47% of Virginia's counties with a zone on file are in Zone 1, a larger share than across all U.S. counties (34%). It is a share of counties, not of land, people or homes.

  • Reported tests

    Measured

    CDC has no statewide testing figure for Virginia on file here.

    132 of the 133 counties have a published county figure; the most tests in each one's latest year were reported for Fairfax County (8,657 tests over 2008 to 2017, laboratory), Loudoun County (4,457 tests over 2008 to 2017, laboratory) and Prince William County (4,441 tests over 2008 to 2017, laboratory).

Virginia's radon program is the VDH Radon Program, run by Virginia Department of Health; its contacts are under Local resources.

Products

Virginia, Products

Testing and mitigation products

Whatever the figures for Virginia show, only a test tells you about one home.

Test kits and monitors42

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As an Amazon Associate, Radon411 earns from qualifying purchases.

Best radon monitors for Virginia homes, compared

Testing

5

Mitigation

3

Explore

Virginia, Next steps

What to do next

  1. LearnKnow what radon isWhat radon is, how it gets indoors, and why a county zone is not a reading for your home.Learn about radon
  2. TestTest the building you live inShort-term or long-term, where the device goes, and closed-house conditions.How to test
  3. FixBring a high level downHow a mitigation system works, and the retest that confirms it.How mitigation works
  4. Find a proHire a certified professionalMeasurement and mitigation professionals by state, with their certifications.Find a professional

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.