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 Saline County, Arkansas
EPA puts Saline County in Zone 3, its lowest radon zone, and 35.8% of its 53 reported radon tests (2008 to 2017, laboratory totals) were at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
35.8%
12.6 pts above AR
- Saline
- 35.8%
- Arkansas
- 23.2%
53 tests, 2008 to 2017
Median result
2.4pCi/L
Below action level
- Saline
- 2.4 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
53
4th of 5 by tests
- Saline
- 53
- Benton
- 147
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Arkansas
2 of 5
Middle half
- Saline
- 35.8%
- Garland
- 45.5%
By share, of 5 with 30+ tests
Read a result for Saline County
Starts at Saline County's median, 2.4 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.4 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Saline County's median reported result, 2008 to 2017.
The data
Saline County, At a glance
Saline County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 53% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Saline County, 2008 to 2017, laboratory
Under 2 pCi/L: 36%2 to 4 pCi/L: 28%4 pCi/L and above: 36%
Of 53 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 19 | 35.8% |
| 2 to 4 pCi/L | 15 | 28.3% |
| 4 pCi/L and above | 19 | 35.8% |
What these figures count
These are the 53 tests reported to CDC for Saline County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Saline County, Compared
Saline County radon figures, compared
Calculated by Radon411In Saline County, about 4 in 10 reported tests over the 2008 to 2017 laboratory totals (19 of 53) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 0.1 points higher. Across 58 Arkansas counties pooled together, 23.2% of tests reached that level, so Saline County runs 12.6 points above its state.
Of 2 neighbours with a figure, 1 reported a larger share at or above 4 pCi/L and 1 a smaller one; the spread is 6.4% (Pulaski County) to 45.5% (Garland County). By share, Saline County is 2nd of 5 Arkansas counties with 30 or more tests for the same period.
Half the tests came in under 2.4 pCi/L and half over it; the single highest reached 19.3 pCi/L. Below the action level, 19 tests (35.8%) came in under 2 pCi/L, against 55.5% statewide, and 15 tests (28.3%) fell between 2 and 4, against 21.3% statewide.
The reported tests do not follow EPA's Zone 3 label for Saline County (predicted average under 2 pCi/L): 35.8% of them reached 4 pCi/L, more than a low-potential zone suggests. USGS geology rates 53% of the county's land low radon potential.
CDC's ten-year totals for Saline County went from 47 tests (2005 to 2014) to 53 (2008 to 2017), the share going from 36.2% to 35.8%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Saline County, Geology
The ground under Saline County
PredictedUSGS's geologic map splits Saline County: 52.8% of its land is low radon potential and 47.2% moderate. The map puts 47.2% of Saline County in the area it calls Central Ouachita Mountains and 32.6% in West Gulf Coastal Plain, with one smaller area beside them. USGS gives the first a radon index of 9, in the moderate band (9 to 11), and the second 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Central Ouachita Mountains | Intensely deformed Ordovician and Silurian shales and sandstones with minor chert and limestone. | Moderate | 9 | 47.2% |
| West Gulf Coastal Plain | Glauconitic, phosphatic, and carbonaceous sediments. | Low | 7 | 32.6% |
| Athens Plateau/Fourche Mountains | Mississippian and Pennsylvanian sandstones and shales. | Low | 8 | 20.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Saline County beside the ground around it
Saline County has more moderate-potential ground than Arkansas as a whole: 47.2% of its land against 21.3%. Of the 5 counties that border it, 1 has more moderate-potential ground, Garland County the most at 87.7%.
The map rates the ground, not the air in any home.
Local help
Saline County, Local resources
Radon testing and mitigation in Saline 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
Saline County, Questions
Questions about radon in Saline County
Are radon levels high in Saline County?
Over the 2008 to 2017 laboratory totals, 35.8% of the radon tests reported to CDC for Saline County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.4 pCi/L. Of 5 Arkansas counties with 30 or more tests for the same period, 1 reported a higher share; pooled, the state comes to 23.2%.
Which counties border Saline County?
Saline County borders 5 counties: Pulaski County, Perry County, Garland County, Grant County and Hot Spring County.
Products
Saline County, Products
Testing a home in Saline County
In Saline County, 35.8% of 53 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 23.2% pooled across Arkansas. 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 Saline 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
MonitorAranet
Radon One 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 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Saline County, Bordering counties
Counties bordering Saline County
Calculated by Radon411- Radon levels in Garland CountyEPA zone 2
45.5%at or above 4 pCi/L
Median 2.7 pCi/L · 44 tests · 9.7 points above Saline County
- Radon levels in Pulaski CountyEPA zone 3
6.4%at or above 4 pCi/L
Median 0.9 pCi/L · 110 tests · 29.4 points below Saline County
- Radon levels in Grant CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 1 test · 35.8 points below Saline County
- Radon levels in Hot Spring CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 2.1 pCi/L · 1 test · 35.8 points below Saline County
- Radon levels in Perry CountyEPA zone 3
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Saline County, Cities and towns
Cities and towns in Saline County
Saline County is growing: the Census Bureau puts it at 133,288 residents on July 1, 2025, up 7.6% from 123,830 in 2020. That works out to 184 people per square mile of land. Its largest town, Benton, has 38,898 residents, 29.2% of the total. Testing is reported here more often than across the state: CDC's 53 reported tests for 2008 to 2017 come to 0.4 for every 1,000 residents (2025 estimate), against 0.2 for Arkansas.
From Benton to Traskwood, CDC publishes no figure by town: each reads Saline County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Benton | 38,898 | +10.7% | 29.2% |
| Bryant | 22,815 | +9.8% | 17.1% |
| Shannon Hills | 4,829 | +6.8% | 3.6% |
| Haskell | 4,362 | +9.4% | 3.3% |
| Alexanderextends beyond Saline County | 3,801 | +11.2% | Counted whole |
| Bauxite | 811 | +28.3% | 0.6% |
| Traskwood | 528 | +5.4% | 0.4% |
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). A place that extends beyond Saline County is counted whole, so it has no share.
Saline County, Homes
Homes in Saline County
Of Saline County's 52,468 homes, 75% are detached houses, against 70% across Arkansas; 16% are mobile homes. Much of Saline County is recent building: 45% of its homes have gone up since 2000 and the middle year built is 1997, against 1987 for Arkansas. Owners live in 76% of the occupied homes (Arkansas: 66%), so for most households a test and a fix are their own to order.
| Homes | Saline County | Arkansas |
|---|---|---|
| Housing units | 52,468 | 1,382,664 |
| Detached houses | 75% | 70% |
| In buildings of 5 or more | 7% | 10% |
| Mobile homes | 16% | 11% |
| Built before 1960 | 8% | 14% |
| Built since 2000 | 45% | 28% |
| Middle year built | 1997 | 1987 |
| Owner-occupied | 76% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.