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Radon Levels in Bradley County, Arkansas

EPA puts Bradley County in Zone 3, its lowest radon zone, and only 1 radon test from it is 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

  • Nearest county

    31.9%

    Saline County, 87 miles

    Saline
    31.9%
    Arkansas
    22.7%

    Share at 4+ pCi/L, 47 tests, 2007 to 2016

  • Ground above low

    None

    21.3 pts below Arkansas

    Bradley
    0.0%
    Arkansas
    21.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    1

    Too few for a share

    Bradley
    1
    Needed
    30

    2008 to 2017, laboratory

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Bradley 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

Bradley County, At a glance

Bradley County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Bradley County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

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

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

CDC holds 1 reported test for Bradley County over the 2008 to 2017 laboratory totals, a result of 0.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Bradley County beside the counties around it is how this page reads it.

What these figures count

Only 1 test was reported to CDC for Bradley 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

Bradley County, Compared

Bradley County radon figures, compared

Calculated by Radon411

CDC's largest figure for Bradley County rests on 1 test over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 100.0 points and no rank or comparison is drawn from it. Results reached as high as 0.1 pCi/L, with a middle value of 0.1 pCi/L.

The nearest counties with a figure are Saline County (87 miles away) at 31.9%, Pulaski County (90 miles away) at 6.8% and Garland County (95 miles away) at 45.8%. Pooled across 60 Arkansas counties, 22.7% of reported tests reached that level; across every county in the country with a figure, 35.8%.

Statewide for the same period, Garland County reported the highest share (45.8%) and Pulaski County the lowest (6.8%). EPA's 1993 map puts Bradley County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.

Arkansas, the United States and the counties around Bradley County, 2007 to 2016, laboratory
AreaTestsAt or above 4 pCi/LMedian
Arkansas, pooled60 counties, pooled68722.7%Not pooled
United States, pooled2,666 counties, pooled1,939,02535.8%Not pooled
Garland Countyhighest in the state4845.8%2.9 pCi/L
Pulaski Countylowest in the state1036.8%0.9 pCi/L
Cleveland County, ARborders it30.0%0.1 pCi/L
Drew County, ARborders it10.0%0.1 pCi/L
Ashley County, ARborders it10.0%1.3 pCi/L
Union County, ARborders it30.0%0.1 pCi/L
The nearest Arkansas counties to Bradley County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Saline County87 mi4731.9%2.2 pCi/L
Pulaski County90 mi1036.8%0.9 pCi/L
Garland County95 mi4845.8%2.9 pCi/L
Washington County209 mi5614.3%2.2 pCi/L
Benton County231 mi14531.0%1.8 pCi/L
Bradley County ten-year laboratory totals, against Arkansas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestArkansas, pooledChange from the row before
2008 to 201710.0%0.1 pCi/L0.1 pCi/L23.2%Level
2007 to 201610.0%0.1 pCi/L0.1 pCi/L22.7%Level
2006 to 201510.0%0.1 pCi/L0.1 pCi/L22.5%Level
2005 to 201410.0%0.1 pCi/L0.1 pCi/L24.3%First on file

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

Bradley County, Geology

The ground under Bradley County

Predicted

USGS's geologic map puts all of Bradley County's mapped land in one class: low radon potential. All of it lies in the area the map calls West Gulf Coastal Plain, to which USGS gives a radon index of 7, in the low band (5 to 8).

USGS's geologic areas under Bradley County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
West Gulf Coastal PlainGlauconitic, phosphatic, and carbonaceous sediments.Low7100%

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

Bradley County beside the ground around it

Across Arkansas 21.3% of the land is rated moderate; none of Bradley County's is. None of the 5 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Bradley County, the 5 counties bordering it and Arkansas
AreaEPA zoneLow potentialModerate potentialHigh potential
Bradley CountyZone 3100%NoneNone
Calhoun CountyZone 3100%NoneNone
Ashley CountyZone 3100%NoneNone
Cleveland CountyZone 3100%NoneNone
Union CountyZone 3100%NoneNone
Drew CountyZone 3100%NoneNone
Arkansas75 counties, pooled by land areaVaries78.7%21.3%None

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

What it means

Bradley County, Questions

Questions about radon in Bradley County

Are radon levels high in Bradley County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Bradley County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Of the 5 nearest counties with a figure, within 231 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.

Which counties border Bradley County?

Bradley County borders 5 counties: Calhoun County, Ashley County, Cleveland County, Union County and Drew County.

Products

Bradley County, Products

Testing a home in Bradley County

No CDC figure names Bradley County; the nearest county with one, Saline County (87 miles away), reported 31.9% of its tests at or above 4 pCi/L over the 2007 to 2016 laboratory totals, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Bradley County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Bradley County homes, compared

Explore

Bradley County, Bordering counties

Counties bordering Bradley County

Calculated by Radon411

Bradley County, Cities and towns

Cities and towns in Bradley County

Bradley County has been losing residents: from 10,501 in 2020 to 9,828 on July 1, 2025, a fall of 6.4% by the Census Bureau's estimates. That works out to 15 people per square mile of land. Warren alone is home to 5,146 of them, 52.4% of the total. Together its 3 incorporated places hold 58.4% of those residents; the other 41.6% live outside any of them. Reported testing is thin here: 1 test over 2008 to 2017, or 0.1 for every 1,000 residents (2025 estimate), where Arkansas as a whole comes to 0.2.

From Warren to Banks, CDC publishes no figure by town: each reads Bradley County's.

The cities and towns in Bradley County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Warren5,146−6.6%52.4%
Hermitage516−6.7%5.3%
Banks81−6.9%0.8%

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).

Bradley County, Homes

Homes in Bradley County

Of Bradley County's 5,082 homes, 71% are detached houses, against 70% across Arkansas; 16% are mobile homes. The homes are older than Arkansas' as a whole: half were built before 1977 (1987 for Arkansas), and 20% date from before 1960. 67% of occupied homes are lived in by their owner (Arkansas: 66%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Bradley County, Arkansas, 2019 to 2023
HomesBradley CountyArkansas
Housing units5,0821,382,664
Detached houses71%70%
In buildings of 5 or more3%10%
Mobile homes16%11%
Built before 196020%14%
Built since 200015%28%
Middle year built19771987
Owner-occupied67%66%

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