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Radon Levels in Morgan County, West Virginia

EPA puts Morgan County in Zone 1, its highest radon zone, and high results are common there: 58.1% of the 241 radon tests reported to CDC (2008 to 2017, laboratory totals) came back at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

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  • Share at 4+ pCi/L

    58.1%

    20.6 pts above WV

    Morgan
    58.1%
    WV
    37.5%

    241 tests, 2008 to 2017

  • Median result

    5.8pCi/L

    Action level reached

    Morgan
    5.8 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    241

    10th of 27 by tests

    Morgan
    241
    Berkeley
    2,888

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 1

    Highest potential

    1. Zone 1
    2. 2
    3. 3

    1 highest, 3 lowest

    EPA predicts over 4 pCi/L indoors

  • Rank in WV

    1 of 27

    Top quarter

    Morgan
    58.1%
    Morgan
    58.1%

    By share, of 27 with 30+ tests

Read a result for Morgan County

Starts at Morgan County's median, 5.8 pCi/L

5.8pCi/L

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

EPA’s reading of 5.8 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. Morgan County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Morgan County, At a glance

Morgan County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA puts all of Morgan County in and predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county. That is one forecast for the whole county, not a reading of any address in it; homes above EPA's turn up in all three zones.

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

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

Reported results by concentration band, Morgan County, 2008 to 2017, laboratory
Under 2 pCi/L: 22%2 to 4 pCi/L: 20%4 pCi/L and above: 58%

Of 241 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Morgan County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L5422.4%
2 to 4 pCi/L4719.5%
4 pCi/L and above14058.1%
What these figures count

These are the 241 tests reported to CDC for Morgan County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not 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

Morgan County, Compared

Morgan County radon figures, compared

Calculated by Radon411

More than half: 58.1% of the 241 radon tests reported to CDC for Morgan County over the 2008 to 2017 laboratory totals read at least 4 pCi/L. That places it 1st of 27 West Virginia counties with 30 or more tests for the same period. That is 20.6 points above the 37.5% pooled from 55 West Virginia counties.

The median result, 5.8 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 125.6 pCi/L. The rest split 22.4% under 2 pCi/L and 19.5% from 2 to 4 (West Virginia: 37.7% and 24.7%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 58.1% share point the same way here.

No bordering county with a figure for the same period reported a higher share; the closest is Washington County, MD at 56.0%, the lowest Allegany County, MD at 35.7%. Statewide for the same period, Jefferson County reported the highest share (53.2%) and Grant County the lowest (9.8%).

CDC's ten-year totals for Morgan County went from 207 tests (2005 to 2014) to 241 (2008 to 2017), the share going from 61.4% to 58.1%.

Nationally, every county with a figure for the same period pools to 35.7%; Morgan County sits 22.4 points above it. CDC also counts 11 tests taken after mitigation in Morgan County for the same period: tests in homes where a fix was already in.

Morgan County against West Virginia, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Morgan County
Morgan County24158.1%5.8 pCi/LThis county
West Virginia, pooled55 counties, pooled10,06137.5%Not pooled−20.6 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled−22.4 points
Jefferson Countyhighest in the state89853.2%4.4 pCi/L−4.9 points
Grant Countylowest in the state1649.8%1.1 pCi/L−48.3 points
Washington County, MDborders it1,25956.0%5.2 pCi/L−2.1 points
Berkeley County, WVborders it2,88850.7%4.0 pCi/L−7.4 points
Frederick County, VAborders it2,45144.1%3.3 pCi/L−14.0 points
Hampshire County, WVborders it9038.9%2.8 pCi/L−19.2 points
Allegany County, MDborders it28635.7%2.7 pCi/L−22.4 points
Where Morgan County's reported results fell, 2008 to 2017, laboratory, beside West Virginia and the United States
ResultMorgan County testsMorgan County shareWest Virginia shareU.S. shareAgainst West Virginia
Under 2 pCi/L5422.4%37.7%39.6%−15.3 points
2 to 4 pCi/L4719.5%24.7%24.7%−5.2 points
4 pCi/L and above14058.1%37.5%35.7%+20.6 points
Morgan County ranked among the 27 West Virginia counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Morgan County1 of 2724158.1%5.8 pCi/L
Jefferson County2 of 2789853.2%4.4 pCi/L
Greenbrier County3 of 2717652.3%4.5 pCi/L
Berkeley County4 of 272,88850.7%4.0 pCi/L
Hancock County5 of 2732649.1%3.9 pCi/L
Brooke County6 of 2715743.9%3.4 pCi/L
Mineral County7 of 2710742.1%2.8 pCi/L
Ohio County8 of 2785340.3%3.2 pCi/L
Hampshire County9 of 279038.9%2.8 pCi/L
Preston County10 of 2717636.9%2.5 pCi/L
Harrison County11 of 2718736.4%2.6 pCi/L
Morgan 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 201724158.1%5.8 pCi/L125.6 pCi/L37.5%−0.6 points
2007 to 201623058.7%5.7 pCi/L125.6 pCi/L37.3%−0.3 points
2006 to 201521759.0%5.9 pCi/L125.6 pCi/L37.7%−2.4 points
2005 to 201420761.4%6.8 pCi/L197.6 pCi/L37.3%First on file

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

Morgan County, Geology

The ground under Morgan County

Predicted

USGS's geologic map puts all of Morgan County's mapped land in one class: high radon potential. 99.3% of it lies in the area the map calls Northern Appalachian Valley and Ridge, to which USGS gives a radon index of 14, in the high band (12 to 17).

USGS's geologic areas under Morgan County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Northern Appalachian Valley and RidgeSandstone ridges, shale and limestone valleys, mostly DevonianHigh1499.3%
Valley and RidgeSilurian and Devonian sandstone, siltstone, shale.High130.5%

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

Morgan County beside the ground around it

Morgan County has more high-potential ground than West Virginia as a whole: 100% of its land against 18.7%. Of the 5 counties that border it, none has as large a share of high-potential ground; Hampshire County comes nearest at 100%.

Share of land by USGS radon potential: Morgan County, the 5 counties bordering it and West Virginia
AreaEPA zoneLow potentialModerate potentialHigh potential
Morgan CountyZone 1NoneNone100%
Allegany County, MDZone 2None19.5%80.5%
Berkeley CountyZone 1NoneNone100%
Frederick County, VAZone 1NoneNone100%
Hampshire CountyZone 1NoneNone100%
Washington County, MDZone 14.4%None95.6%
West Virginia55 counties, pooled by land areaVaries14.0%67.3%18.7%

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

Local help

Morgan County, Local resources

Radon testing and mitigation in Morgan County

What West Virginia's program says
Phone
304-352-5039
Email
Radon@wv.gov
Licensing of radon professionals
Complete listings of professionals licensed to perform Asbestos, Lead, Radon and Clandestine Drug Laboratory Remediation activities in West Virginia.

What it means

Morgan County, Questions

Questions about radon in Morgan County

Are radon levels high in Morgan County?

Over the 2008 to 2017 laboratory totals, 58.1% of the radon tests reported to CDC for Morgan County, West Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 5.8 pCi/L. Of 27 West Virginia counties with 30 or more tests for the same period, none reported a higher share; pooled, the state comes to 37.5%.

Which counties border Morgan County?

Morgan County borders 5 counties: Allegany County, MD, Berkeley County, WV, Frederick County, VA, Hampshire County, WV and Washington County, MD.

Products

Morgan County, Products

Testing a home in Morgan County

In Morgan County, 58.1% of 241 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 37.5% pooled across West Virginia. In Zone 1 the year-round level in Morgan County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.

Test kits and monitors3

See every kit and monitor

Morgan County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Morgan County

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Morgan County, Bordering counties

Counties bordering Morgan County

Calculated by Radon411

Morgan County, Cities and towns

Cities and towns in Morgan County

Morgan County is growing: the Census Bureau puts it at 18,027 residents on July 1, 2025, up 5.5% from 17,086 in 2020. That works out to 79 people per square mile of land. No town dominates: Bath (Berkeley Springs), the largest, has 753 residents, 4.2% of the total. Together its 2 incorporated places hold 6.5% of those residents; the other 93.5% live outside any of them. Testing is reported here more often than across the state: CDC's 241 reported tests for 2008 to 2017 come to 13.4 for every 1,000 residents (2025 estimate), against 5.7 for West Virginia.

From Bath (Berkeley Springs) to Paw Paw, CDC publishes no figure by town: each reads Morgan County's.

The cities and towns in Morgan County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Bath (Berkeley Springs)753−0.8%4.2%
Paw Paw416+1.2%2.3%

2 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).

Morgan County, Homes

Homes in Morgan County

Morgan County is a place of houses on their own lots: 81% of its 9,182 homes are detached single-family houses, against 71% across West Virginia. Much of Morgan County is recent building: 24% of its homes have gone up since 2000 and the middle year built is 1984, against 1976 for West Virginia. 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 Morgan County, West Virginia, 2019 to 2023
HomesMorgan CountyWest Virginia
Housing units9,182859,653
Detached houses81%71%
In buildings of 5 or more2%8%
Mobile homes14%14%
Built before 196020%33%
Built since 200024%18%
Middle year built19841976
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.