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Radon Levels in Russell County, Kentucky

EPA puts Russell County in Zone 1, its highest radon zone, and 25.0% 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

  • Share at 4+ pCi/L

    25.0%

    18.7 pts below KY

    Russell
    25.0%
    Kentucky
    43.7%

    32 tests, 2008 to 2017

  • Median result

    2.9pCi/L

    Below action level

    Russell
    2.9 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    32

    68th of 69 by tests

    Russell
    32
    Jefferson
    6,590

    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 Kentucky

    54 of 69

    Lowest quarter

    Russell
    25.0%
    Meade
    68.4%

    By share, of 69 with 30+ tests

Read a result for Russell County

Starts at Russell County's median, 2.9 pCi/L

2.9pCi/L

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

EPA’s reading of 2.9 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. Russell County's median reported result, 2008 to 2017.

The data

Russell County, At a glance

Russell County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA puts all of Russell 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 Russell County, 2008 to 2017, laboratory

Reported results by concentration band, Russell County, 2008 to 2017, laboratory
Under 2 pCi/L: 44%2 to 4 pCi/L: 31%4 pCi/L and above: 25%

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

Reported results by concentration band, Russell County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L1443.8%
2 to 4 pCi/L1031.3%
4 pCi/L and above825.0%
What these figures count

These are the 32 tests reported to CDC for Russell 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

Russell County, Compared

Russell County radon figures, compared

Calculated by Radon411

Russell County's 32 reported tests over the 2008 to 2017 laboratory totals had a middle value of 2.9 pCi/L and a maximum of 14.0 pCi/L, and 25.0% reached 4 pCi/L. Kentucky as a whole (120 Kentucky counties, pooled) comes to 43.7%: 18.7 points higher than here.

Among its state's counties it ranks 54th of 69 Kentucky counties with 30 or more tests for the same period. Statewide for the same period, Meade County reported the highest share (68.4%) and Hopkins County the lowest (9.5%).

Below the action level, 14 tests (43.8%) came in under 2 pCi/L, against 33.2% statewide, and 10 tests (31.3%) fell between 2 and 4, against 23.1% statewide. CDC's ten-year totals for Russell County went from 30 tests (2005 to 2014) to 32 (2008 to 2017), the share going from 26.7% to 25.0%.

EPA's 1993 zone map puts Russell County in Zone 1, a predicted county average above 4 pCi/L. USGS geology rates 100% of the county's land high radon potential.

Next door, the shares run from 32.6% in Casey County to 60.9% in Wayne County.

Russell County against Kentucky, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Russell County
Russell County3225.0%2.9 pCi/LThis county
Kentucky, pooled120 counties, pooled28,79343.7%Not pooled+18.7 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+10.7 points
Meade Countyhighest in the state11768.4%8.2 pCi/L+43.4 points
Hopkins Countylowest in the state429.5%1.7 pCi/L−15.5 points
Wayne County, KYborders it6460.9%5.0 pCi/L+35.9 points
Pulaski County, KYborders it39559.5%5.1 pCi/L+34.5 points
Cumberland County, KYborders it1855.6%4.6 pCi/L+30.6 points
Clinton County, KYborders it4047.5%3.5 pCi/L+22.5 points
Adair County, KYborders it5343.4%3.8 pCi/L+18.4 points
Casey County, KYborders it4332.6%3.1 pCi/L+7.6 points
Where Russell County's reported results fell, 2008 to 2017, laboratory, beside Kentucky and the United States
ResultRussell County testsRussell County shareKentucky shareU.S. shareAgainst Kentucky
Under 2 pCi/L1443.8%33.2%39.6%+10.6 points
2 to 4 pCi/L1031.3%23.1%24.7%+8.2 points
4 pCi/L and above825.0%43.7%35.7%−18.7 points
Russell 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
Pendleton County50 of 693426.5%1.9 pCi/L
Campbell County51 of 6954326.2%2.3 pCi/L
Kenton County52 of 691,16726.0%2.3 pCi/L
Anderson County53 of 6922625.2%2.2 pCi/L
Mason County54 of 693225.0%2.6 pCi/L
Russell County54 of 693225.0%2.9 pCi/L
Henderson County56 of 695424.1%2.3 pCi/L
Trigg County57 of 694522.2%2.4 pCi/L
Laurel County58 of 6910022.0%1.9 pCi/L
Menifee County59 of 694122.0%1.4 pCi/L
Edmonson County60 of 696221.0%1.6 pCi/L
Russell County ten-year laboratory totals, against Kentucky's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestKentucky, pooledChange from the row before
2008 to 20173225.0%2.9 pCi/L14.0 pCi/L43.7%−0.7 points
2007 to 20163525.7%3.0 pCi/L14.0 pCi/L45.1%−1.6 points
2006 to 20153327.3%3.0 pCi/L14.0 pCi/L46.4%+0.6 points
2005 to 20143026.7%3.0 pCi/L14.0 pCi/L47.3%First on file

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

Russell County, Geology

The ground under Russell County

Predicted

USGS's geologic map puts all of Russell County's mapped land in one class: high radon potential. 96.0% of it lies in the area the map calls Eastern Pennyroyal, to which USGS gives a radon index of 12, in the high band (12 to 17).

USGS's geologic areas under Russell County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Eastern PennyroyalMarine shale, sandstone and limestone.High1296.0%
Nashville BasinMississippian Limestone.High144.0%

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

Russell County beside the ground around it

Russell County has more high-potential ground than Kentucky as a whole: 100% of its land against 18.2%. Of the 6 counties that border it, none has as large a share of high-potential ground; Adair County comes nearest at 100%.

Share of land by USGS radon potential: Russell County, the 6 counties bordering it and Kentucky
AreaEPA zoneLow potentialModerate potentialHigh potential
Russell CountyZone 1NoneNone100%
Adair CountyZone 1NoneNone100%
Wayne CountyZone 21.2%82.4%16.5%
Clinton CountyZone 2None83.3%16.7%
Casey CountyZone 1NoneNone100%
Pulaski CountyZone 1None68.7%31.3%
Cumberland CountyZone 1None13.6%86.4%
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

Russell County, Questions

Questions about radon in Russell County

Are radon levels high in Russell County?

Over the 2008 to 2017 laboratory totals, 25.0% of the radon tests reported to CDC for Russell County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.9 pCi/L. Of 69 Kentucky counties with 30 or more tests for the same period, 53 reported a higher share; pooled, the state comes to 43.7%.

Which counties border Russell County?

Russell County borders 6 counties: Adair County, Wayne County, Clinton County, Casey County, Pulaski County and Cumberland County.

Products

Russell County, Products

Testing a home in Russell County

In Russell County, 25.0% 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 1 the year-round level in Russell 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

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

Explore

Russell County, Bordering counties

Counties bordering Russell County

Calculated by Radon411

Russell County, Cities and towns

Cities and towns in Russell County

The Census Bureau estimates 18,608 residents in Russell County for July 1, 2025, 611 more than in 2020 (+3.4%). That works out to 73 people per square mile of land. No town dominates: Russell Springs, the largest, has 2,828 residents, 15.2% of the total. Together its 2 incorporated places hold 25.4% of those residents; the other 74.6% live outside any of them. Reported testing is thin here: 32 tests over 2008 to 2017, or 1.7 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 6.3.

From Russell Springs to Jamestown, CDC publishes no figure by town: each reads Russell County's.

The cities and towns in Russell County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Russell Springs2,828+3.7%15.2%
Jamestown1,901+2.4%10.2%

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).

Russell County, Homes

Homes in Russell County

Of Russell County's 10,146 homes, 70% are detached houses, against 68% across Kentucky; 21% are mobile homes. Half of its homes were built before 1989, close to Kentucky's 1982: 13% date from before 1960 and 28% from 2000 or later. 74% 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 Russell County, Kentucky, 2019 to 2023
HomesRussell CountyKentucky
Housing units10,1462,010,655
Detached houses70%68%
In buildings of 5 or more4%12%
Mobile homes21%11%
Built before 196013%22%
Built since 200028%24%
Middle year built19891982
Owner-occupied74%68%

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