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Radon Levels in Owsley County, Kentucky

EPA puts Owsley County in Zone 2, its middle radon zone, and only 8 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

    19.1%

    Breathitt County

    Breathitt
    19.1%

    1 of 5 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    19.1%

    Breathitt County, 21 miles

    Breathitt
    19.1%
    Kentucky
    43.7%

    Share at 4+ pCi/L, 47 tests, 2008 to 2017

  • Ground above low

    100.0%

    5.7 pts above Kentucky

    Owsley
    100.0%
    Kentucky
    94.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    8

    Too few for a share

    Owsley
    8
    Needed
    30

    2008 to 2017, laboratory

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

Read a result for Owsley 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

Owsley County, At a glance

Owsley County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Owsley County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

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

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

CDC holds 8 reported tests for Owsley County over the 2008 to 2017 laboratory totals, with a median of 18.3 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Owsley County beside the counties around it is how this page reads it.

What these figures count

Only 8 tests were reported to CDC for Owsley 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

Owsley County, Compared

Owsley County radon figures, compared

Calculated by Radon411

CDC's largest figure for Owsley County rests on 8 tests over the 2008 to 2017 laboratory totals, 5 of them at or above 4 pCi/L, so each test moves its share by 12.5 points and no rank or comparison is drawn from it. Results reached as high as 29.7 pCi/L, with a middle value of 18.3 pCi/L.

Breathitt County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 19.1% of its tests at or above 4 pCi/L. Farther out, Estill County (24 miles away) at 44.1%, Laurel County (32 miles away) at 22.0% and Menifee County (36 miles away) at 22.0% have figures too. Pooled across 120 Kentucky counties, 43.7% of reported tests reached that level; across every county in the country with a figure, 35.7%.

Statewide for the same period, Meade County reported the highest share (68.4%) and Hopkins County the lowest (9.5%). EPA's 1993 map puts Owsley County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.

Kentucky, the United States and the counties around Owsley County, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedian
Kentucky, pooled120 counties, pooled28,79343.7%Not pooled
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled
Meade Countyhighest in the state11768.4%8.2 pCi/L
Hopkins Countylowest in the state429.5%1.7 pCi/L
Perry County, KYborders it2420.8%1.4 pCi/L
Clay County, KYborders it1020.0%2.1 pCi/L
Breathitt County, KYborders it4719.1%1.7 pCi/L
Lee County, KYborders it185.6%1.2 pCi/L
Jackson County, KYborders it110.0%1.8 pCi/L
The nearest Kentucky counties to Owsley County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Breathitt County21 mi4719.1%1.7 pCi/L
Estill County24 mi17744.1%3.2 pCi/L
Laurel County32 mi10022.0%1.9 pCi/L
Menifee County36 mi4122.0%1.4 pCi/L
Madison County39 mi60438.7%2.9 pCi/L
Montgomery County44 mi10551.4%4.1 pCi/L
Clark County46 mi23129.0%2.4 pCi/L
Garrard County49 mi16439.6%2.6 pCi/L
Owsley County ten-year laboratory totals, against Kentucky's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestKentucky, pooledChange from the row before
2008 to 2017862.5%18.3 pCi/L29.7 pCi/L43.7%Level
2007 to 2016862.5%18.3 pCi/L29.7 pCi/L45.1%−4.2 points
2006 to 2015366.7%20.3 pCi/L21.5 pCi/L46.4%Level
2005 to 2014366.7%20.3 pCi/L21.5 pCi/L47.3%First on file

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

Owsley County, Geology

The ground under Owsley County

Predicted

USGS's geologic map puts all of Owsley County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Cumberland Plateau, to which USGS gives a radon index of 9, in the moderate band (9 to 11).

USGS's geologic areas under Owsley County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Cumberland PlateauPennsylvanian sandstones, siltstones, and shales.Moderate9100%

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

Owsley County beside the ground around it

Across Kentucky 18.2% of the land is rated high; none of Owsley County's is. Of the 5 counties that border it, none has as large a share of moderate-potential ground; Breathitt County comes nearest at 100%.

Share of land by USGS radon potential: Owsley County, the 5 counties bordering it and Kentucky
AreaEPA zoneLow potentialModerate potentialHigh potential
Owsley CountyZone 2None100%None
Lee CountyZone 2None100%None
Jackson CountyZone 2None100%None
Clay CountyZone 2None100%None
Breathitt CountyZone 2None100%None
Perry CountyZone 2None100%None
Kentucky120 counties, pooled by land areaVaries5.7%76.1%18.2%

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

What it means

Owsley County, Questions

Questions about radon in Owsley County

Are radon levels high in Owsley County?

Over the 2008 to 2017 laboratory totals, 62.5% of the radon tests reported to CDC for Owsley County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 18.3 pCi/L. Breathitt County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 19.1% of its tests at or above 4 pCi/L.

Which counties border Owsley County?

Owsley County borders 5 counties: Lee County, Jackson County, Clay County, Breathitt County and Perry County.

Products

Owsley County, Products

Testing a home in Owsley County

No CDC figure names Owsley County; the nearest county with one, Breathitt County (21 miles away), reported 19.1% 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. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Owsley County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Owsley County homes, compared

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Owsley County, Bordering counties

Counties bordering Owsley County

Calculated by Radon411

Owsley County, Cities and towns

Cities and towns in Owsley County

About 3,932 people live in Owsley County by the Census Bureau's estimate for July 1, 2025, 102 fewer than in 2020 (−2.5%). That works out to 20 people per square mile of land. Booneville, its one incorporated place, has 154 residents, 3.9% of the total. Reported testing is thin here: 8 tests over 2008 to 2017, or 2.0 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.

Booneville is the one incorporated place here; CDC publishes no figure by town, so it reads Owsley County's.

Booneville, Owsley County: residents on July 1, 2025
PlaceResidentsSince 2020Share of residents
Booneville154−3.1%3.9%

One incorporated place, 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).

Owsley County, Homes

Homes in Owsley County

Of Owsley County's 2,024 homes, 67% are detached houses, against 68% across Kentucky; 25% are mobile homes. Half of its homes were built before 1987, close to Kentucky's 1982: 15% date from before 1960 and 29% from 2000 or later. 68% of occupied homes are lived in by their owner (Kentucky: 68%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Owsley County, Kentucky, 2019 to 2023
HomesOwsley CountyKentucky
Housing units2,0242,010,655
Detached houses67%68%
In buildings of 5 or more4%12%
Mobile homes25%11%
Built before 196015%22%
Built since 200029%24%
Middle year built19871982
Owner-occupied68%68%

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