
Short-term kit![]()
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
EPA puts Yell 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
Highest bordering
45.8%
Garland County
1 of 7 neighbours have 30+ tests, 2007 to 2016
Nearest county
45.8%
Garland County, 33 miles
Share at 4+ pCi/L, 48 tests, 2007 to 2016
Ground above low
None
21.3 pts below Arkansas
Share of land USGS rates moderate or high potential
Tests reported
2
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 Yell 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
Yell 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 2 reported tests for Yell County over the 2008 to 2017 laboratory totals, with a median of 0.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Yell County beside the counties around it is how this page reads it.
Only 2 tests were reported to CDC for Yell 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: 2006 to 2017 (every CDC figure on file).
Yell County, Compared
CDC's largest figure for Yell 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 0.8 pCi/L, with a middle value of 0.5 pCi/L.
Garland County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 45.8% of its tests at or above 4 pCi/L. Farther out, Saline County (48 miles away) at 31.9%, Pulaski County (64 miles away) at 6.8% and Washington County (81 miles away) at 14.3% have figures too. 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 Yell 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.
Yell County, Geology
USGS's geologic map puts all of Yell County's mapped land in one class: low radon potential. The map puts 51.3% of Yell County in the area it calls Arkansas Valley and 48.7% in Athens Plateau/Fourche 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 | 51.3% |
| Athens Plateau/Fourche Mountains | Mississippian and Pennsylvanian sandstones and shales. | Low | 8 | 48.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Arkansas 21.3% of the land is rated moderate; none of Yell County's is. Of the 7 counties that border it, 2 have more moderate-potential ground, Garland County the most at 87.7%.
The map rates the ground, not the air in any home.
Local help
Yell County, Local resources
What it means
Yell County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Yell County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Garland County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 45.8% of its tests at or above 4 pCi/L.
Yell County borders 7 counties: Logan County, Pope County, Perry County, Garland County, Montgomery County, Scott County and Conway County.
Products
Yell County, Products
No CDC figure names Yell County; the nearest county with one, Garland County (33 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 Yell County.
Test kits and monitors: 1 of 3
Explore
Yell County, Bordering counties
100.0%at or above 4 pCi/L
Median 4.9 pCi/L · 1 test
45.8%at or above 4 pCi/L
Median 2.9 pCi/L · 48 tests
25.0%at or above 4 pCi/L
Median 1.6 pCi/L · 4 tests
20.0%at or above 4 pCi/L
Median 2.1 pCi/L · 5 tests
15.4%at or above 4 pCi/L
Median 2.7 pCi/L · 13 tests
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 1 test
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Yell County, Cities and towns
About 19,956 people live in Yell County by the Census Bureau's estimate for July 1, 2025, 262 fewer than in 2020 (−1.3%). That works out to 21 people per square mile of land. Its largest town, Dardanelle, has 4,521 residents, 22.7% of the total. Together its 7 incorporated places hold 42.3% of those residents; the other 57.7% 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 Dardanelle to Corinth, CDC publishes no figure by town: each reads Yell County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Dardanelle | 4,521 | +0.3% | 22.7% |
| Danville | 1,961 | −3.0% | 9.8% |
| Ola | 921 | −1.4% | 4.6% |
| Plainview | 457 | −2.1% | 2.3% |
| Belleville | 309 | −1.3% | 1.5% |
| Havana | 235 | −1.7% | 1.2% |
| Corinth | 40 | −2.4% | 0.2% |
7 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).
Yell County, Homes
Of Yell County's 9,300 homes, 72% are detached houses, against 70% across Arkansas; 17% are mobile homes. Half of its homes were built before 1983, close to Arkansas' 1987: 15% date from before 1960 and 24% from 2000 or later. 68% 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 | Yell County | Arkansas |
|---|---|---|
| Housing units | 9,300 | 1,382,664 |
| Detached houses | 72% | 70% |
| In buildings of 5 or more | 7% | 10% |
| Mobile homes | 17% | 11% |
| Built before 1960 | 15% | 14% |
| Built since 2000 | 24% | 28% |
| Middle year built | 1983 | 1987 |
| Owner-occupied | 68% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.