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Radon Levels in Lawrence County, Kentucky

EPA puts Lawrence County in Zone 2, its middle radon zone, and only 9 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

    31.7%

    Carter County

    Carter
    31.7%
    Boyd
    17.9%

    2 of 7 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    17.9%

    Boyd County, 20 miles

    Boyd
    17.9%
    Kentucky
    43.7%

    Share at 4+ pCi/L, 168 tests, 2008 to 2017

  • Ground above low

    100.0%

    5.7 pts above Kentucky

    Lawrence
    100.0%
    Kentucky
    94.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    12

    Too few for a share

    Lawrence
    12
    Needed
    30

    2005 to 2014, 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 Lawrence 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

Lawrence County, At a glance

Lawrence County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Lawrence 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 Lawrence County, 2008 to 2017, laboratory

CDC holds 9 reported tests for Lawrence County over the 2008 to 2017 laboratory totals, with a median of 1.7 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Lawrence County beside the counties around it is how this page reads it.

What these figures count

Only 9 tests were reported to CDC for Lawrence 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

Lawrence County, Compared

Lawrence County radon figures, compared

Calculated by Radon411

CDC's largest figure for Lawrence County rests on 12 tests over the 2005 to 2014 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 8.3 points and no rank or comparison is drawn from it. Results reached as high as 3.6 pCi/L, with a middle value of 0.6 pCi/L.

Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Carter County reported the largest share at or above 4 pCi/L, 31.7%, and Boyd County the smallest, 17.9%. Farther out, Greenup County (34 miles away) at 12.5%, Rowan County (38 miles away) at 18.9% and Pike County (45 miles away) at 17.1% 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 Lawrence 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 Lawrence 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
Elliott County, KYborders it540.0%3.5 pCi/L
Carter County, KYborders it4131.7%2.2 pCi/L
Boyd County, KYborders it16817.9%2.1 pCi/L
Wayne County, WVborders it1915.8%1.7 pCi/L
Morgan County, KYborders it185.6%1.2 pCi/L
Johnson County, KYborders it280.0%0.8 pCi/L
Martin County, KYborders it20.0%0.1 pCi/L
The nearest Kentucky counties to Lawrence County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Boyd County20 mi16817.9%2.1 pCi/L
Carter County24 mi4131.7%2.2 pCi/L
Greenup County34 mi10412.5%2.0 pCi/L
Rowan County38 mi7418.9%1.6 pCi/L
Pike County45 mi8217.1%1.1 pCi/L
Menifee County48 mi4122.0%1.4 pCi/L
Breathitt County50 mi4719.1%1.7 pCi/L
Montgomery County64 mi10551.4%4.1 pCi/L
Lawrence County ten-year laboratory totals, against Kentucky's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestKentucky, pooledChange from the row before
2008 to 201790.0%1.7 pCi/L3.6 pCi/L43.7%Level
2007 to 201680.0%1.6 pCi/L3.6 pCi/L45.1%Level
2006 to 201590.0%0.7 pCi/L3.6 pCi/L46.4%Level
2005 to 2014120.0%0.6 pCi/L3.6 pCi/L47.3%First on file

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

Lawrence County, Geology

The ground under Lawrence County

Predicted

USGS's geologic map puts all of Lawrence County's mapped land in one class: moderate radon potential. The map puts 51.3% of Lawrence County in the area it calls Cumberland Plateau and 48.7% in Central Allegheny Plateau. USGS gives the first a radon index of 9 and the second 10, both in the moderate band (9 to 11).

USGS's geologic areas under Lawrence County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Cumberland PlateauPennsylvanian sandstones, siltstones, and shales.Moderate951.3%
Central Allegheny PlateauPermian and Pennsylvanian shale, siltstone, sandstone, minor limestone.Moderate1048.7%

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

Lawrence County beside the ground around it

Across Kentucky 18.2% of the land is rated high; none of Lawrence County's is. Of the 7 counties that border it, none has as large a share of moderate-potential ground; Johnson County comes nearest at 100%.

Share of land by USGS radon potential: Lawrence County, the 7 counties bordering it and Kentucky
AreaEPA zoneLow potentialModerate potentialHigh potential
Lawrence CountyZone 2None100%None
Johnson CountyZone 2None100%None
Wayne County, WVZone 214.1%85.9%None
Elliott CountyZone 2None100%None
Boyd CountyZone 2None100%None
Martin CountyZone 20.1%99.9%None
Carter CountyZone 2None100%None
Morgan 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

Lawrence County, Questions

Questions about radon in Lawrence County

Are radon levels high in Lawrence County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Lawrence County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.7 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Carter County reported the largest share at or above 4 pCi/L, 31.7%, and Boyd County the smallest, 17.9%.

Which counties border Lawrence County?

Lawrence County borders 7 counties: Johnson County, KY, Wayne County, WV, Elliott County, KY, Boyd County, KY, Martin County, KY, Carter County, KY and Morgan County, KY.

Products

Lawrence County, Products

Testing a home in Lawrence County

No CDC figure names Lawrence County; the nearest county with one, Boyd County (20 miles away), reported 17.9% 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 Lawrence County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Lawrence County homes, compared

Explore

Lawrence County, Bordering counties

Counties bordering Lawrence County

Calculated by Radon411

Lawrence County, Cities and towns

Cities and towns in Lawrence County

About 15,765 people live in Lawrence County by the Census Bureau's estimate for July 1, 2025, 535 fewer than in 2020 (−3.3%). That works out to 38 people per square mile of land. No town dominates: Louisa, the largest, has 2,520 residents, 16.0% of the total. Together its 2 incorporated places hold 16.4% of those residents; the other 83.6% live outside any of them. Reported testing is thin here: 12 tests over 2005 to 2014, or 0.8 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 4.4.

From Louisa to Blaine, CDC publishes no figure by town: each reads Lawrence County's.

The cities and towns in Lawrence County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Louisa2,520−5.3%16.0%
Blaine64−5.9%0.4%

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).

Lawrence County, Homes

Homes in Lawrence County

Of Lawrence County's 7,575 homes, 62% are detached houses, against 68% across Kentucky; 32% are mobile homes. Half of its homes were built before 1987, close to Kentucky's 1982: 16% date from before 1960 and 25% from 2000 or later. Owners live in 76% of the occupied homes (Kentucky: 68%), so for most households a test and a fix are their own to order.

Homes in Lawrence County, Kentucky, 2019 to 2023
HomesLawrence CountyKentucky
Housing units7,5752,010,655
Detached houses62%68%
In buildings of 5 or more5%12%
Mobile homes32%11%
Built before 196016%22%
Built since 200025%24%
Middle year built19871982
Owner-occupied76%68%

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