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 Sevier County, Arkansas
EPA puts Sevier County in Zone 3, its lowest radon zone, and only 2 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
45.8%
Garland County, 74 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
- Sevier
- 0.0%
- Arkansas
- 21.3%
Share of land USGS rates moderate or high potential
Tests reported
2
Too few for a share
- Sevier
- 2
- 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 Sevier 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
Sevier County, At a glance
Sevier 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 Sevier County, 2008 to 2017, laboratory
CDC holds 2 reported tests for Sevier County over the 2008 to 2017 laboratory totals, with a median of 1.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Sevier County beside the counties around it is how this page reads it.
What these figures count
Only 2 tests were reported to CDC for Sevier 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).
Sevier County, Compared
Sevier County radon figures, compared
Calculated by Radon411CDC's largest figure for Sevier County rests on 2 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 50.0 points and no rank or comparison is drawn from it. Results reached as high as 1.7 pCi/L, with a middle value of 1.1 pCi/L.
The nearest counties with a figure are Garland County (74 miles away) at 45.8%, Saline County (100 miles away) at 31.9% and Pulaski County (122 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 Sevier 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.
Sevier County, Geology
The ground under Sevier County
PredictedUSGS's geologic map puts all of Sevier County's mapped land in one class: low radon potential. The map puts 78.6% of Sevier County in the area it calls West Gulf Coastal Plain and 21.4% in Athens Plateau/Fourche Mountains. USGS gives the first a radon index of 7 and the second 8, both 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 | 78.6% |
| Athens Plateau/Fourche Mountains | Mississippian and Pennsylvanian sandstones and shales. | Low | 8 | 21.4% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Sevier County beside the ground around it
Across Arkansas 21.3% of the land is rated moderate; none of Sevier County's is. Of the 5 counties that border it, 2 have more moderate-potential ground, Polk County the most at 25.4%.
The map rates the ground, not the air in any home.
Local help
Sevier County, Local resources
Radon testing and mitigation in Sevier 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
Sevier County, Questions
Questions about radon in Sevier County
Are radon levels high in Sevier County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Sevier County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.1 pCi/L. Of the 5 nearest counties with a figure, within 161 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.
Which counties border Sevier County?
Sevier County borders 5 counties: Howard County, AR, Little River County, AR, Polk County, AR, McCurtain County, OK and Hempstead County, AR.
Products
Sevier County, Products
Testing a home in Sevier County
No CDC figure names Sevier County; the nearest county with one, Garland County (74 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 Sevier 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
MonitorPYZYCKYH
RD17 plug-in radon detector with a rechargeable battery and color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Sevier County, Bordering counties
Counties bordering Sevier County
Calculated by Radon411- 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 Little River County, AREPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 1 test
- Radon levels in Polk County, AREPA zone 3
0.0%at or above 4 pCi/L
Median 2.2 pCi/L · 1 test
- Radon levels in McCurtain County, OKEPA 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.
Sevier County, Cities and towns
Cities and towns in Sevier County
Sevier County's population has barely moved since 2020: 15,758 residents on July 1, 2025 against 15,778 then, by the Census Bureau's estimates. That works out to 28 people per square mile of land. Its largest town, De Queen, has 6,045 residents, 38.4% of the total. Together its 5 incorporated places hold 49.8% of those residents; the other 50.2% live outside any of them. Reported testing is thin here: 2 tests over 2008 to 2017, or 0.1 for every 1,000 residents (2025 estimate), where Arkansas as a whole comes to 0.2.
From De Queen to Ben Lomond, CDC publishes no figure by town: each reads Sevier County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| De Queen | 6,045 | −0.3% | 38.4% |
| Horatio | 907 | −0.9% | 5.8% |
| Lockesburg | 596 | +1.0% | 3.8% |
| Gillham | 155 | Level | 1.0% |
| Ben Lomond | 137 | Level | 0.9% |
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).
Sevier County, Homes
Homes in Sevier County
Of Sevier County's 6,768 homes, 66% are detached houses, against 70% across Arkansas; 28% are mobile homes. Half of its homes were built before 1980, close to Arkansas' 1987: 12% date from before 1960 and 20% from 2000 or later. 65% 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 | Sevier County | Arkansas |
|---|---|---|
| Housing units | 6,768 | 1,382,664 |
| Detached houses | 66% | 70% |
| In buildings of 5 or more | 2% | 10% |
| Mobile homes | 28% | 11% |
| Built before 1960 | 12% | 14% |
| Built since 2000 | 20% | 28% |
| Middle year built | 1980 | 1987 |
| Owner-occupied | 65% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.