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
Radon Levels in Little River County, Arkansas
EPA puts Little River 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
45.8%
Garland County, 87 miles
- Garland
- 45.8%
- Arkansas
- 22.7%
Share at 4+ pCi/L, 48 tests, 2007 to 2016
Ground above low
None
21.3 pts below Arkansas
- Little River
- 0.0%
- Arkansas
- 21.3%
Share of land USGS rates moderate or high potential
Tests reported
1
Too few for a share
- Little River
- 1
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Little River County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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
Little River County, At a glance
Little River County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
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 Little River County, 2008 to 2017, laboratory
CDC holds 1 reported test for Little River County over the 2008 to 2017 laboratory totals, a result of 0.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Little River County beside the counties around it is how this page reads it.
What these figures count
Only 1 test was reported to CDC for Little River 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).
Little River County, Compared
Little River County radon figures, compared
Calculated by Radon411CDC's largest figure for Little River 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 0.9 pCi/L, with a middle value of 0.9 pCi/L.
The nearest counties with a figure are Garland County (87 miles away) at 45.8%, Saline County (111 miles away) at 31.9% and Pulaski County (132 miles away) at 6.8%. 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 Little River 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.
Little River County, Geology
The ground under Little River County
PredictedUSGS's geologic map puts all of Little River 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).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| West Gulf Coastal Plain | Glauconitic, phosphatic, and carbonaceous sediments. | Low | 7 | 99.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Little River County beside the ground around it
Across Arkansas 21.3% of the land is rated moderate; none of Little River County's is. Of the 6 counties that border it, 1 has more moderate-potential ground, Howard County the most at 1.5%.
The map rates the ground, not the air in any home.
Local help
Little River County, Local resources
Radon testing and mitigation in Little River County
- Arkansas's radon programArkansas Department of HealthArkansas's radon program answers questions about testing, mitigation and the rules in Arkansas.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Arkansas directoryNo professionals are listed in Arkansas yet. The state program can point you to registered testers and mitigators.
What Arkansas's program says
- Phone
- 501-661-2621
- ADH.EPI.Radon@arkansas.gov
What it means
Little River County, Questions
Questions about radon in Little River County
Are radon levels high in Little River County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Little River County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.9 pCi/L. Of the 5 nearest counties with a figure, within 182 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.
Which counties border Little River County?
Little River County borders 6 counties: Sevier County, AR, Bowie County, TX, Hempstead County, AR, Howard County, AR, Miller County, AR and McCurtain County, OK.
Products
Little River County, Products
Testing a home in Little River County
No CDC figure names Little River County; the nearest county with one, Garland County (87 miles away), reported 45.8% 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 Little River County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Monitor
EcoQube Flex battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 15 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Little River County, Bordering counties
Counties bordering Little River County
Calculated by Radon411- Radon levels in Miller County, AREPA zone 3
100.0%at or above 4 pCi/L
Median 4.8 pCi/L · 1 test
- Radon levels in Sevier County, AREPA zone 3
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 2 tests
- Radon levels in Howard County, AREPA zone 3
0.0%at or above 4 pCi/L
Median 2.6 pCi/L · 3 tests
- Radon levels in Bowie County, TXEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Hempstead County, AREPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in McCurtain County, OKEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Little River County, Cities and towns
Cities and towns in Little River County
About 11,763 people live in Little River County by the Census Bureau's estimate for July 1, 2025, 215 fewer than in 2020 (−1.8%). That works out to 22 people per square mile of land. Its largest town, Ashdown, has 4,135 residents, 35.2% of the total. Together its 5 incorporated places hold 47.8% of those residents; the other 52.2% 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 Ashdown to Winthrop, CDC publishes no figure by town: each reads Little River County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Ashdown | 4,135 | −2.5% | 35.2% |
| Foreman | 951 | −2.2% | 8.1% |
| Wilton | 289 | −0.3% | 2.5% |
| Ogden | 127 | −0.8% | 1.1% |
| Winthrop | 115 | −0.9% | 1.0% |
5 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).
Little River County, Homes
Homes in Little River County
Little River County is a place of houses on their own lots: 77% of its 6,071 homes are detached single-family houses, against 70% across Arkansas. Half of its homes were built before 1980, close to Arkansas' 1987: 9% date from before 1960 and 20% from 2000 or later. Owners live in 80% of the occupied homes (Arkansas: 66%), so for most households a test and a fix are their own to order.
| Homes | Little River County | Arkansas |
|---|---|---|
| Housing units | 6,071 | 1,382,664 |
| Detached houses | 77% | 70% |
| In buildings of 5 or more | 1% | 10% |
| Mobile homes | 18% | 11% |
| Built before 1960 | 9% | 14% |
| Built since 2000 | 20% | 28% |
| Middle year built | 1980 | 1987 |
| Owner-occupied | 80% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.