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Radon Levels in Wyoming County, West Virginia

EPA puts Wyoming County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Highest bordering

    33.7%

    Mercer County

    Mercer
    33.7%
    Raleigh
    16.7%

    2 of 6 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    16.7%

    Raleigh County, 20 miles

    Raleigh
    16.7%
    WV
    37.5%

    Share at 4+ pCi/L, 42 tests, 2008 to 2017

  • Ground above low

    None

    86.0 pts below WV

    Wyoming
    0.0%
    WV
    86.0%

    Share of land USGS rates moderate or high potential

  • Tests reported

    3

    Too few for a share

    Wyoming
    3
    Needed
    30

    2008 to 2017, laboratory

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Wyoming County

Starts at EPA's action level

4.0pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 4.0 pCi/L

At or above 4 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.

The data

Wyoming County, At a glance

Wyoming County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Wyoming County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

USGS geologic potential: Low across 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Wyoming County, 2008 to 2017, laboratory

CDC holds 3 reported tests for Wyoming County over the 2008 to 2017 laboratory totals, with a median of 0.8 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Wyoming County beside the counties around it is how this page reads it.

What these figures count

Only 3 tests were reported to CDC for Wyoming County over 2008 to 2017 (laboratory totals), and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.

Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).

How to read these figures

Wyoming County, Compared

Wyoming County radon figures, compared

Calculated by Radon411

CDC's largest figure for Wyoming County rests on 3 tests over the 2008 to 2017 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 6.7 pCi/L, with a middle value of 0.8 pCi/L.

Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Mercer County reported the largest share at or above 4 pCi/L, 33.7%, and Raleigh County the smallest, 16.7%. Farther out, Kanawha County (50 miles away) at 20.6%, Greenbrier County (64 miles away) at 52.3% and Putnam County (65 miles away) at 23.1% have figures too. Pooled across 55 West Virginia counties, 37.5% of reported tests reached that level; across every county in the country with a figure, 35.7%.

Statewide for the same period, Morgan County reported the highest share (58.1%) and Grant County the lowest (9.8%). EPA's 1993 map puts Wyoming County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.

West Virginia, the United States and the counties around Wyoming County, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedian
West Virginia, pooled55 counties, pooled10,06137.5%Not pooled
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled
Morgan Countyhighest in the state24158.1%5.8 pCi/L
Grant Countylowest in the state1649.8%1.1 pCi/L
Mercer County, WVborders it10133.7%2.1 pCi/L
Raleigh County, WVborders it4216.7%1.4 pCi/L
Boone County, WVborders it714.3%0.1 pCi/L
McDowell County, WVborders it30.0%2.5 pCi/L
Logan County, WVborders it90.0%1.4 pCi/L
Mingo County, WVborders it50.0%1.0 pCi/L
The nearest West Virginia counties to Wyoming County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Raleigh County20 mi4216.7%1.4 pCi/L
Mercer County28 mi10133.7%2.1 pCi/L
Kanawha County50 mi24720.6%2.2 pCi/L
Greenbrier County64 mi17652.3%4.5 pCi/L
Putnam County65 mi5223.1%1.5 pCi/L
Cabell County67 mi14516.6%2.0 pCi/L
Wood County110 mi90515.9%1.8 pCi/L
Randolph County121 mi3336.4%2.5 pCi/L
Wyoming County ten-year laboratory totals, against West Virginia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestWest Virginia, pooledChange from the row before
2008 to 2017333.3%0.8 pCi/L6.7 pCi/L37.5%−16.7 points
2007 to 2016250.0%3.7 pCi/L6.7 pCi/L37.3%Level
2006 to 2015250.0%3.7 pCi/L6.7 pCi/L37.7%Level
2005 to 2014250.0%3.7 pCi/L6.7 pCi/L37.3%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Wyoming County, Geology

The ground under Wyoming County

Predicted

USGS's geologic map puts all of Wyoming County's mapped land in one class: low radon potential. All of it lies in the area the map calls Cumberland Plateau, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Wyoming County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Cumberland PlateauPennsylvanian sandstone, siltstone, shale, and coalLow8100%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Wyoming County beside the ground around it

Across West Virginia 18.7% of the land is rated high; none of Wyoming County's is. Of the 6 counties that border it, 2 have more high-potential ground, Mercer County the most at 16.0%.

Share of land by USGS radon potential: Wyoming County, the 6 counties bordering it and West Virginia
AreaEPA zoneLow potentialModerate potentialHigh potential
Wyoming CountyZone 3100%NoneNone
McDowell CountyZone 398.3%1.3%0.3%
Raleigh CountyZone 243.4%56.6%None
Logan CountyZone 3100%NoneNone
Boone CountyZone 398.2%1.8%None
Mercer CountyZone 111.4%72.6%16.0%
Mingo CountyZone 398.8%1.2%None
West Virginia55 counties, pooled by land areaVaries14.0%67.3%18.7%

The map rates the ground, not the air in any home.

What it means

Wyoming County, Questions

Questions about radon in Wyoming County

Are radon levels high in Wyoming County?

Over the 2008 to 2017 laboratory totals, 33.3% of the radon tests reported to CDC for Wyoming County, West Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.8 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Mercer County reported the largest share at or above 4 pCi/L, 33.7%, and Raleigh County the smallest, 16.7%.

Which counties border Wyoming County?

Wyoming County borders 6 counties: McDowell County, Raleigh County, Logan County, Boone County, Mercer County and Mingo County.

Products

Wyoming County, Products

Testing a home in Wyoming County

No CDC figure names Wyoming County; the nearest county with one, Raleigh County (20 miles away), reported 16.7% of its tests at or above 4 pCi/L over the 2008 to 2017 laboratory totals, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Wyoming County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Wyoming County homes, compared

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Wyoming County, Bordering counties

Counties bordering Wyoming County

Calculated by Radon411

Wyoming County, Cities and towns

Cities and towns in Wyoming County

Wyoming County has been losing residents: from 21,322 in 2020 to 19,801 on July 1, 2025, a fall of 7.1% by the Census Bureau's estimates. That works out to 40 people per square mile of land. No town dominates: Oceana, the largest, has 1,382 residents, 7.0% of the total. Together its 3 incorporated places hold 17.1% of those residents; the other 82.9% live outside any of them. Reported testing is thin here: 3 tests over 2008 to 2017, or 0.2 for every 1,000 residents (2025 estimate), where West Virginia as a whole comes to 5.7.

From Oceana to Pineville, CDC publishes no figure by town: each reads Wyoming County's.

The cities and towns in Wyoming County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Oceana1,382−7.2%7.0%
Mullens1,336−8.4%6.7%
Pineville663−8.2%3.3%

3 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).

Wyoming County, Homes

Homes in Wyoming County

Of Wyoming County's 9,975 homes, 68% are detached houses, against 71% across West Virginia; 27% are mobile homes. Half of its homes were built before 1975, close to West Virginia's 1976: 32% date from before 1960 and 12% from 2000 or later. Owners live in 83% of the occupied homes (West Virginia: 74%), so for most households a test and a fix are their own to order.

Homes in Wyoming County, West Virginia, 2019 to 2023
HomesWyoming CountyWest Virginia
Housing units9,975859,653
Detached houses68%71%
In buildings of 5 or more2%8%
Mobile homes27%14%
Built before 196032%33%
Built since 200012%18%
Middle year built19751976
Owner-occupied83%74%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.