
Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
EPA puts Cleburne County in Zone 3, its lowest 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
Nearest county
6.8%
Pulaski County, 55 miles
Share at 4+ pCi/L, 103 tests, 2007 to 2016
Ground above low
0.3%
21.0 pts below Arkansas
Share of land USGS rates moderate or high potential
Tests reported
9
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Cleburne County
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
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
Cleburne County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC holds 9 reported tests for Cleburne County over the 2008 to 2017 laboratory totals, with a median of 2.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Cleburne County beside the counties around it is how this page reads it.
Only 9 tests were reported to CDC for Cleburne 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).
Cleburne County, Compared
CDC's largest figure for Cleburne County rests on 9 tests over the 2008 to 2017 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 11.1 points and no rank or comparison is drawn from it. Results reached as high as 7.7 pCi/L, with a middle value of 2.1 pCi/L.
The nearest counties with a figure are Pulaski County (55 miles away) at 6.8%, Saline County (72 miles away) at 31.9% and Garland County (92 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 Cleburne 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.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Cleburne County, Geology
Most of the ground under Cleburne County is one class on USGS's geologic map: 99.7% of its land is low radon potential, with 0.3% moderate. The map puts 51.9% of Cleburne County in the area it calls Arkansas Valley and 47.8% in Boston Mountains. USGS gives both a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Arkansas Valley | Mississippian and Pennsylvanian sandstones and shales. | Low | 8 | 51.9% |
| Boston Mountains | Mississippian and Pennsylvanian sandstones and shales. | Low | 8 | 47.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Arkansas as a whole has more moderate-potential ground than Cleburne County: 21.3% of its land, against 0.3% here. Of the 5 counties that border it, 2 have more moderate-potential ground, Independence County the most at 63.8%.
The map rates the ground, not the air in any home.
Local help
Cleburne County, Local resources
What it means
Cleburne County, Questions
Over the 2008 to 2017 laboratory totals, 11.1% of the radon tests reported to CDC for Cleburne County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.1 pCi/L. Of the 5 nearest counties with a figure, within 137 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.
Cleburne County borders 5 counties: White County, Stone County, Independence County, Van Buren County and Faulkner County.
Products
Cleburne County, Products
No CDC figure names Cleburne County; the nearest county with one, Pulaski County (55 miles away), reported 6.8% 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 Cleburne County.
Test kits and monitors: 1 of 3
Explore
Cleburne County, Bordering counties
26.7%at or above 4 pCi/L
Median 2.4 pCi/L · 15 tests
5.3%at or above 4 pCi/L
Median 1.3 pCi/L · 19 tests
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 6 tests
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 7 tests
0.0%at or above 4 pCi/L
Median 2.6 pCi/L · 6 tests
Cleburne County, Cities and towns
The Census Bureau estimates 25,672 residents in Cleburne County for July 1, 2025, 960 more than in 2020 (+3.9%). That works out to 46 people per square mile of land. Its largest town, Heber Springs, has 7,323 residents, 28.5% of the total. Testing is reported here more often than across the state: CDC's 9 reported tests for 2008 to 2017 come to 0.4 for every 1,000 residents (2025 estimate), against 0.2 for Arkansas.
From Heber Springs to Higden, CDC publishes no figure by town: each reads Cleburne County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Heber Springs | 7,323 | +5.1% | 28.5% |
| Fairfield Bayextends beyond Cleburne County | 2,198 | +4.4% | Counted whole |
| Greers Ferry | 831 | +3.1% | 3.2% |
| Quitmanextends beyond Cleburne County | 704 | +2.0% | Counted whole |
| Concord | 193 | +2.1% | 0.8% |
| Higden | 116 | +2.7% | 0.5% |
6 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). A place that extends beyond Cleburne County is counted whole, so it has no share.
Cleburne County, Homes
Of Cleburne County's 15,641 homes, 74% are detached houses, against 70% across Arkansas; 20% are mobile homes. Half of its homes were built before 1988, close to Arkansas' 1987: 7% date from before 1960 and 26% 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 | Cleburne County | Arkansas |
|---|---|---|
| Housing units | 15,641 | 1,382,664 |
| Detached houses | 74% | 70% |
| In buildings of 5 or more | 1% | 10% |
| Mobile homes | 20% | 11% |
| Built before 1960 | 7% | 14% |
| Built since 2000 | 26% | 28% |
| Middle year built | 1988 | 1987 |
| Owner-occupied | 79% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.