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
Radon Levels in Cross County, Arkansas
EPA puts Cross County in Zone 3, its lowest radon zone. 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, 95 miles
- Pulaski
- 6.8%
- Arkansas
- 22.7%
Share at 4+ pCi/L, 103 tests, 2007 to 2016
Ground above low
17.7%
3.6 pts below Arkansas
- Cross
- 17.7%
- Arkansas
- 21.3%
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
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 Cross 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
Cross County, At a glance
Cross County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 82% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
No CDC test figures here
CDC has published no radon test figures for Cross County. Pulaski County, 95 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
Cross County, Compared
Cross County radon figures, compared
Calculated by Radon411CDC's county radon counts over the 2007 to 2016 laboratory totals cover 60 Arkansas counties, and Cross County is not among them: no year's figure and no ten-year laboratory total names it. Pooled across 60 Arkansas counties, 22.7% of reported tests reached that level; across every county in the country with a figure, 35.8%.
The nearest counties with a figure are Pulaski County (95 miles away) at 6.8%, Saline County (117 miles away) at 31.9% and Garland County (144 miles away) at 45.8%. 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 Cross County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 82% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Cross County, Geology
The ground under Cross County
PredictedMost of the ground under Cross County is one class on USGS's geologic map: 82.3% of its land is low radon potential, with 17.7% moderate. The map puts 82.3% of Cross County in the area it calls Mississippi Alluvial Plain and 17.7% in Crowley's Ridge. USGS gives the first a radon index of 8, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Mississippi Alluvial Plain | Alluvial sand, silt, gravel, and clay. | Low | 8 | 82.3% |
| Crowley's Ridge | Loess. | Moderate | 9 | 17.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Cross County beside the ground around it
On moderate-potential ground Cross County is close to Arkansas as a whole: 17.7% of its land against 21.3%. Of the 5 counties that border it, none has as large a share of moderate-potential ground; St. Francis County comes nearest at 10.3%.
The map rates the ground, not the air in any home.
Local help
Cross County, Local resources
Radon testing and mitigation in Cross 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
Cross County, Questions
Questions about radon in Cross County
Are radon levels high in Cross County?
No CDC testing statistics are published here for Cross County, Arkansas yet. Of the 5 nearest counties with a figure, within 208 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.
Which counties border Cross County?
Cross County borders 5 counties: St. Francis County, Poinsett County, Woodruff County, Crittenden County and Jackson County.
Products
Cross County, Products
Testing a home in Cross County
No CDC figure names Cross County; the nearest county with one, Pulaski County (95 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 Cross 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
RadonScan USB-powered radon monitor with a color screen
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Cross County, Bordering counties
Counties bordering Cross County
Calculated by Radon411- Radon levels in Crittenden CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
- Radon levels in Jackson CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 3 tests
- Radon levels in St. Francis CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Poinsett CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Woodruff CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Cross County, Cities and towns
Cities and towns in Cross County
About 16,186 people live in Cross County by the Census Bureau's estimate for July 1, 2025, 614 fewer than in 2020 (−3.7%). That works out to 26 people per square mile of land. Its largest town, Wynne, has 7,884 residents, 48.7% of the total. Together its 4 incorporated places hold 58.5% of those residents; the other 41.5% live outside any of them. CDC publishes no radon test count for Cross County; across Arkansas its counts for 2007 to 2016 come to 0.2 tests for every 1,000 residents (2025 estimate).
From Wynne to Hickory Ridge, CDC publishes no figure by town: each reads Cross County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wynne | 7,884 | −4.9% | 48.7% |
| Parkin | 766 | −4.0% | 4.7% |
| Cherry Valley | 589 | −1.0% | 3.6% |
| Hickory Ridge | 222 | −4.7% | 1.4% |
4 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).
Cross County, Homes
Homes in Cross County
Of Cross County's 7,581 homes, 71% are detached houses, against 70% across Arkansas; 17% are mobile homes. Half of its homes were built before 1980, close to Arkansas' 1987: 15% date from before 1960 and 19% from 2000 or later. 66% 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 | Cross County | Arkansas |
|---|---|---|
| Housing units | 7,581 | 1,382,664 |
| Detached houses | 71% | 70% |
| In buildings of 5 or more | 4% | 10% |
| Mobile homes | 17% | 11% |
| Built before 1960 | 15% | 14% |
| Built since 2000 | 19% | 28% |
| Middle year built | 1980 | 1987 |
| Owner-occupied | 66% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.