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Radon Levels in Cleveland County, Arkansas

EPA puts Cleveland County in Zone 3, its lowest radon zone, and only 3 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

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  • Nearest county

    31.9%

    Saline County, 59 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

    Cleveland
    0.0%
    Arkansas
    21.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    3

    Too few for a share

    Cleveland
    3
    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 Cleveland 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.

Interpret this readingWhat a fix costs

The data

Cleveland County, At a glance

Cleveland County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Cleveland 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 Cleveland County, 2008 to 2017, laboratory

CDC holds 3 reported tests for Cleveland County over the 2008 to 2017 laboratory totals, with a median of 0.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Cleveland County beside the counties around it is how this page reads it.

What these figures count

Only 3 tests were reported to CDC for Cleveland 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

Cleveland County, Compared

Cleveland County radon figures, compared

Calculated by Radon411

CDC's largest figure for Cleveland County rests on 3 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 1.3 pCi/L, with a middle value of 0.1 pCi/L.

The nearest counties with a figure are Saline County (59 miles away) at 31.9%, Pulaski County (61 miles away) at 6.8% and Garland County (72 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 Cleveland 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 Cleveland 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
Drew County, ARborders it10.0%0.1 pCi/L
Bradley County, ARborders it10.0%0.1 pCi/L
Jefferson County, ARborders it20.0%0.5 pCi/L
Dallas County, ARborders it10.0%1.2 pCi/L
Grant County, ARborders it10.0%0.9 pCi/L
The nearest Arkansas counties to Cleveland County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Saline County59 mi4731.9%2.2 pCi/L
Pulaski County61 mi1036.8%0.9 pCi/L
Garland County72 mi4845.8%2.9 pCi/L
Washington County184 mi5614.3%2.2 pCi/L
Benton County205 mi14531.0%1.8 pCi/L
Cleveland County ten-year laboratory totals, against Arkansas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestArkansas, pooledChange from the row before
2008 to 201730.0%0.1 pCi/L1.3 pCi/L23.2%Level
2007 to 201630.0%0.1 pCi/L1.3 pCi/L22.7%Level
2006 to 201530.0%0.1 pCi/L1.3 pCi/L22.5%Level
2005 to 201430.0%0.1 pCi/L1.3 pCi/L24.3%First on file

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

Cleveland County, Geology

The ground under Cleveland County

Predicted

USGS's geologic map puts all of Cleveland 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 Cleveland 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.

Cleveland County beside the ground around it

Across Arkansas 21.3% of the land is rated moderate; none of Cleveland County's is. None of the 7 counties that border it has any moderate-potential ground either.

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

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

Local help

Cleveland County, Local resources

Radon testing and mitigation in Cleveland County

What Arkansas's program says
Phone
501-661-2621
Email
ADH.EPI.Radon@arkansas.gov

What it means

Cleveland County, Questions

Questions about radon in Cleveland County

Are radon levels high in Cleveland County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Cleveland 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 205 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.

Which counties border Cleveland County?

Cleveland County borders 7 counties: Lincoln County, Bradley County, Calhoun County, Drew County, Dallas County, Grant County and Jefferson County.

Products

Cleveland County, Products

Testing a home in Cleveland County

No CDC figure names Cleveland County; the nearest county with one, Saline County (59 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 Cleveland County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Cleveland County homes, compared

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Cleveland County, Bordering counties

Counties bordering Cleveland County

Calculated by Radon411

Cleveland County, Cities and towns

Cities and towns in Cleveland County

About 7,224 people live in Cleveland County by the Census Bureau's estimate for July 1, 2025, 327 fewer than in 2020 (−4.3%). That works out to 12 people per square mile of land. No town dominates: Rison, the largest, has 917 residents, 12.7% of the total. Together its 2 incorporated places hold 17.3% of those residents; the other 82.7% live outside any of them. Testing is reported here more often than across the state: CDC's 3 reported tests for 2008 to 2017 come to 0.4 for every 1,000 residents (2025 estimate), against 0.2 for Arkansas.

From Rison to Kingsland, CDC publishes no figure by town: each reads Cleveland County's.

The cities and towns in Cleveland County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Rison917−5.0%12.7%
Kingsland332−3.8%4.6%

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).

Cleveland County, Homes

Homes in Cleveland County

Of Cleveland County's 3,598 homes, 71% are detached houses, against 70% across Arkansas; 27% are mobile homes. Half of its homes were built before 1986, close to Arkansas' 1987: 9% date from before 1960 and 24% from 2000 or later. Owners live in 79% of the occupied homes (Arkansas: 66%), so for most households a test and a fix are their own to order.

Homes in Cleveland County, Arkansas, 2019 to 2023
HomesCleveland CountyArkansas
Housing units3,5981,382,664
Detached houses71%70%
In buildings of 5 or moreunder 1%10%
Mobile homes27%11%
Built before 19609%14%
Built since 200024%28%
Middle year built19861987
Owner-occupied79%66%

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