Skip to content
RADON411

Locations and reports

Radon Levels in Breckinridge County, Kentucky

EPA puts Breckinridge County in Zone 2, its middle radon zone, and 31.3% of its 32 reported radon tests (2008 to 2017, laboratory totals) were 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

How to test this homeFind a certified tester

  • Share at 4+ pCi/L

    31.3%

    12.4 pts below KY

    Breckinridge
    31.3%
    Kentucky
    43.7%

    32 tests, 2008 to 2017

  • Median result

    2.5pCi/L

    Below action level

    Breckinridge
    2.5 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    32

    66th of 69 by tests

    Breckinridge
    32
    Jefferson
    6,590

    Reported to CDC before any fix, 2008 to 2017

  • 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

  • Rank in Kentucky

    45 of 69

    Middle half

    Breckinridge
    31.3%
    Meade
    68.4%

    By share, of 69 with 30+ tests

Read a result for Breckinridge County

Starts at Breckinridge County's median, 2.5 pCi/L

2.5pCi/L

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

EPA’s reading of 2.5 pCi/L

Between 2 and 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 between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Breckinridge County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Breckinridge County, At a glance

Breckinridge County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Breckinridge 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 Breckinridge County, 2008 to 2017, laboratory

Reported results by concentration band, Breckinridge County, 2008 to 2017, laboratory
Under 2 pCi/L: 41%2 to 4 pCi/L: 28%4 pCi/L and above: 31%

Of 32 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Breckinridge County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L1340.6%
2 to 4 pCi/L928.1%
4 pCi/L and above1031.3%
What these figures count

These are the 32 tests reported to CDC for Breckinridge 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

Breckinridge County, Compared

Breckinridge County radon figures, compared

Calculated by Radon411

In Breckinridge County, about 3 in 10 reported tests over the 2008 to 2017 laboratory totals (10 of 32) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 4.4 points lower. Across 120 Kentucky counties pooled together, 43.7% of tests reached that level, so Breckinridge County runs 12.4 points below its state.

Of 3 neighbours with a figure, 2 reported a larger share at or above 4 pCi/L and 1 a smaller one; the spread is 27.8% (Grayson County) to 68.4% (Meade County). By share, Breckinridge County is 45th of 69 Kentucky counties with 30 or more tests for the same period.

Half the tests came in under 2.5 pCi/L and half over it; the single highest reached 149.4 pCi/L. Below the action level, 13 tests (40.6%) came in under 2 pCi/L, against 33.2% statewide, and 9 tests (28.1%) fell between 2 and 4, against 23.1% statewide.

Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 31.3% share point the same way here. USGS geology rates 100% of the county's land moderate radon potential.

CDC's ten-year totals for Breckinridge County went from 26 tests (2005 to 2014) to 32 (2008 to 2017), the share going from 34.6% to 31.3%.

Breckinridge County against Kentucky, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Breckinridge County
Breckinridge County3231.3%2.5 pCi/LThis county
Kentucky, pooled120 counties, pooled28,79343.7%Not pooled+12.4 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+4.4 points
Nelson Countyhighest in the state30466.1%6.3 pCi/L+34.8 points
Hopkins Countylowest in the state429.5%1.7 pCi/L−21.8 points
Meade County, KYborders it11768.4%8.2 pCi/L+37.1 points
Hardin County, KYborders it42950.3%4.0 pCi/L+19.0 points
Grayson County, KYborders it3627.8%2.2 pCi/L−3.5 points
Perry County, INborders it2623.1%2.3 pCi/L−8.2 points
Hancock County, KYborders it616.7%1.4 pCi/L−14.6 points
Ohio County, KYborders it1711.8%1.9 pCi/L−19.5 points
Where Breckinridge County's reported results fell, 2008 to 2017, laboratory, beside Kentucky and the United States
ResultBreckinridge County testsBreckinridge County shareKentucky shareU.S. shareAgainst Kentucky
Under 2 pCi/L1340.6%33.2%39.6%+7.4 points
2 to 4 pCi/L928.1%23.1%24.7%+5.0 points
4 pCi/L and above1031.3%43.7%35.7%−12.4 points
Breckinridge County ranked among the 69 Kentucky counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Simpson County40 of 6912632.5%2.6 pCi/L
Green County41 of 693132.3%2.5 pCi/L
Carter County42 of 694131.7%2.2 pCi/L
Logan County43 of 697931.6%2.4 pCi/L
Spencer County44 of 6916631.3%2.5 pCi/L
Breckinridge County45 of 693231.3%2.5 pCi/L
Allen County46 of 695829.3%1.9 pCi/L
Clark County47 of 6923129.0%2.4 pCi/L
Grayson County48 of 693627.8%2.2 pCi/L
Washington County49 of 694427.3%2.4 pCi/L
Pendleton County50 of 693426.5%1.9 pCi/L
Breckinridge County ten-year laboratory totals, against Kentucky's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestKentucky, pooledChange from the row before
2008 to 20173231.3%2.5 pCi/L149.4 pCi/L43.7%−4.0 points
2007 to 20163435.3%2.7 pCi/L149.4 pCi/L45.1%−0.2 points
2006 to 20153135.5%2.6 pCi/L149.4 pCi/L46.4%+0.9 points
2005 to 20142634.6%2.5 pCi/L149.4 pCi/L47.3%First on file

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

Breckinridge County, Geology

The ground under Breckinridge County

Predicted

USGS's geologic map puts all of Breckinridge County's mapped land in one class: moderate radon potential. 98.4% of it lies in the area the map calls Mississippian Plateau, to which USGS gives a radon index of 11, in the moderate band (9 to 11).

USGS's geologic areas under Breckinridge County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Mississippian PlateauMississippian marine limestones, dolomites, marine sandstones, siltstones, and shales.Moderate1198.4%
Western CoalfieldLimestones, shale, siltstone, and coal beds.Moderate91.4%

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

Breckinridge County beside the ground around it

Across Kentucky 18.2% of the land is rated high; none of Breckinridge County's is. Of the 6 counties that border it, 1 has more high-potential ground, Hardin County the most at 3.4%.

Share of land by USGS radon potential: Breckinridge County, the 6 counties bordering it and Kentucky
AreaEPA zoneLow potentialModerate potentialHigh potential
Breckinridge CountyZone 2None100%None
Meade CountyZone 2None100%None
Hancock CountyZone 2None100%None
Perry County, INZone 2None100%None
Grayson CountyZone 2None100%None
Hardin CountyZone 2None96.6%3.4%
Ohio 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.

Local help

Breckinridge County, Local resources

Radon testing and mitigation in Breckinridge County

What Kentucky's program says
Phone
502-782-2782
Email
Radon@ky.gov

What it means

Breckinridge County, Questions

Questions about radon in Breckinridge County

Are radon levels high in Breckinridge County?

Over the 2008 to 2017 laboratory totals, 31.3% of the radon tests reported to CDC for Breckinridge County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.5 pCi/L. Of 69 Kentucky counties with 30 or more tests for the same period, 44 reported a higher share; pooled, the state comes to 43.7%.

Which counties border Breckinridge County?

Breckinridge County borders 6 counties: Meade County, KY, Hancock County, KY, Perry County, IN, Grayson County, KY, Hardin County, KY and Ohio County, KY.

Products

Breckinridge County, Products

Testing a home in Breckinridge County

In Breckinridge County, 31.3% of 32 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 43.7% pooled across Kentucky. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Breckinridge County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Breckinridge County homes, compared

Explore

Breckinridge County, Bordering counties

Counties bordering Breckinridge County

Calculated by Radon411

Breckinridge County, Cities and towns

Cities and towns in Breckinridge County

Breckinridge County is growing: the Census Bureau puts it at 21,503 residents on July 1, 2025, up 5.2% from 20,443 in 2020. That works out to 38 people per square mile of land. No town dominates: Hardinsburg, the largest, has 2,513 residents, 11.7% of the total. Together its 3 incorporated places hold 23.5% of those residents; the other 76.5% live outside any of them. Reported testing is thin here: 32 tests over 2008 to 2017, or 1.5 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.

From Hardinsburg to Cloverport, CDC publishes no figure by town: each reads Breckinridge County's.

The cities and towns in Breckinridge County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Hardinsburg2,513+5.1%11.7%
Irvington1,396+3.4%6.5%
Cloverport1,153+3.1%5.4%

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).

Breckinridge County, Homes

Homes in Breckinridge County

Of Breckinridge County's 10,760 homes, 68% are detached houses, against 68% across Kentucky; 28% are mobile homes. Half of its homes were built before 1989, close to Kentucky's 1982: 11% date from before 1960 and 27% from 2000 or later. Owners live in 82% of the occupied homes (Kentucky: 68%), so for most households a test and a fix are their own to order.

Homes in Breckinridge County, Kentucky, 2019 to 2023
HomesBreckinridge CountyKentucky
Housing units10,7602,010,655
Detached houses68%68%
In buildings of 5 or more3%12%
Mobile homes28%11%
Built before 196011%22%
Built since 200027%24%
Middle year built19891982
Owner-occupied82%68%

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