Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
Radon Levels in Saline County, Kansas
EPA puts Saline County in Zone 1, its highest radon zone, and high results are common there: 52.3% of the 729 radon tests reported to CDC (2022) came back 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
52.3%
20.3 pts above KS
- Saline
- 52.3%
- Kansas
- 32.0%
729 tests, 2022
Median result
4.2pCi/L
Action level reached
- Saline
- 4.2 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2022
Tests reported
729
5th of 38 by tests
- Saline
- 729
- Johnson
- 5,240
Reported to CDC before any fix, 2022
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Kansas
6 of 38
Top quarter
- Saline
- 52.3%
- Mitchell
- 57.4%
By share, of 38 with 30+ tests
Read a result for Saline County
Starts at Saline County's median, 4.2 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.2 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. Saline County's median reported result, 2022.
The data
Saline County, At a glance
Saline County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Saline County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Saline County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2016 | 45.8% |
| 2017 | 37.6% |
| 2018 | 42.4% |
| 2019 | 34.9% |
| 2020 | 32.4% |
| 2021 | 37.0% |
| 2022 | 52.3% |
2022: 52.3%. Across these years the share ran from 32.4% to 52.3%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 729 tests reported to CDC for Saline County over 2022, 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: 2022. Measured data period: 2016 to 2022 (every CDC figure on file).
Saline County, Compared
Saline County radon figures, compared
Calculated by Radon411More than half: 52.3% of the 729 radon tests reported to CDC for Saline County in 2022 read at least 4 pCi/L. That places it 6th of 38 Kansas counties with 30 or more tests for the same period. That is 20.3 points above the 32.0% pooled from 96 Kansas counties.
The median result, 4.2 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 29.6 pCi/L. The rest split 25.0% under 2 pCi/L and 22.8% from 2 to 4 (Kansas: 45.8% and 22.1%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 52.3% share point the same way here.
No bordering county with a figure for the same period reported a higher share; the closest is McPherson County at 51.6%, the lowest Dickinson County at 38.9%. Statewide for the same period, Mitchell County reported the highest share (57.4%) and Crawford County the lowest (5.9%).
The busiest year on file was 2021, with 1,920 tests reported; the quietest, 2018, had 524.
Over 7 years of annual figures the share rose 6.5 points, from 45.8% in 2016 to 52.3% in 2022; its peak was 52.3% in 2022. Nationally, every county with a figure for the same period pools to 23.9%; Saline County sits 28.4 points above it. CDC also counts 32 tests taken after mitigation in Saline County for the same period: tests in homes where a fix was already in.
Saline CountyKansas, pooled
52.3% % of tests32.0% % of tests
| Year | Tests | Saline County, at or above 4 pCi/L | Kansas, pooled |
|---|---|---|---|
| 2016 | 590 | 45.8% | 35.4% |
| 2017 | 662 | 37.6% | 37.3% |
| 2018 | 524 | 42.4% | 37.3% |
| 2019 | 628 | 34.9% | 33.7% |
| 2020 | 639 | 32.4% | 31.3% |
| 2021 | 1,920 | 37.0% | 31.8% |
| 2022 | 729 | 52.3% | 32.0% |
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 puts all of Saline County's mapped land in one class: high radon potential. The map puts 81.0% of Saline County in the area it calls Smoky Hills and 19.0% in Mid-Continent Rift Zone. USGS gives both a radon index of 12, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Smoky Hills | Cretaceous marine sandstone, shale, and siltstone covered by discontinuous loess deposits. | High | 12 | 81.0% |
| Mid-Continent Rift Zone | Faulted and fractured Permian limestone, dolomite, shale, and sandstone related to the Mid-Continent Rift zone. | High | 12 | 19.0% |
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 high-potential ground than Kansas as a whole: 100% of its land against 59.9%. Of the 6 counties that border it, none has as large a share of high-potential ground; Ellsworth County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Saline County, Local resources
Radon testing and mitigation in Saline County
Listed radon businesses with an address in Saline County:
- Kansas Radon ProgramKansas Radon Program answers questions about testing, mitigation and the rules in Kansas.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
- Professionals in Kansas178 professionals are listed in Kansas.
Listed radon professionals by town: Salina
What Kansas's program says
- Phone
- (800) 693-5343
What it means
Saline County, Questions
Questions about radon in Saline County
Are radon levels high in Saline County?
In 2022, 52.3% of the radon tests reported to CDC for Saline County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.2 pCi/L. Of 38 Kansas counties with 30 or more tests for the same period, 5 reported a higher share; pooled, the state comes to 32.0%.
Which counties border Saline County?
Saline County borders 6 counties: McPherson County, Dickinson County, Ottawa County, Ellsworth County, Lincoln County and Marion County.
Products
Saline County, Products
Testing a home in Saline County
In Saline County, 52.3% of 729 tests reported to CDC in 2022 reached 4 pCi/L, against 32.0% pooled across Kansas. In Zone 1 the year-round level in Saline County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors3
See every kit and monitor
MonitorX-Sense
XR0B-SR battery digital radon monitor with an alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Saline County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Saline County
Explore
Saline County, Bordering counties
Counties bordering Saline County
Calculated by Radon411- Radon levels in McPherson CountyEPA zone 1
51.6%at or above 4 pCi/L
Median 4.1 pCi/L · 215 tests · 0.7 points below Saline County
- Radon levels in Marion CountyEPA zone 1
40.0%at or above 4 pCi/L
Median 2.5 pCi/L · 45 tests · 12.3 points below Saline County
- Radon levels in Dickinson CountyEPA zone 1
38.9%at or above 4 pCi/L
Median 2.7 pCi/L · 113 tests · 13.4 points below Saline County
- Radon levels in Ellsworth CountyEPA zone 1
35.3%at or above 4 pCi/L
Median 3.0 pCi/L · 17 tests · 17.0 points below Saline County
- Radon levels in Ottawa CountyEPA zone 1
32.0%at or above 4 pCi/L
Median 3.3 pCi/L · 25 tests · 20.3 points below Saline County
- Radon levels in Lincoln CountyEPA zone 1
22.2%at or above 4 pCi/L
Median 3.2 pCi/L · 9 tests · 30.1 points below Saline County
Saline County, Cities and towns
Cities and towns in Saline County
About 53,377 people live in Saline County by the Census Bureau's estimate for July 1, 2025, 883 fewer than in 2020 (−1.6%). That works out to 74 people per square mile of land. Salina alone is home to 46,094 of them, 86.4% of the total. Testing is reported here more often than across the state: CDC's 729 reported tests for 2022 come to 13.7 for every 1,000 residents (2025 estimate), against 6.2 for Kansas.
From Salina to New Cambria, CDC publishes no figure by town: each reads Saline County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Salina | 46,094 | −1.6% | 86.4% |
| Solomonextends beyond Saline County | 1,007 | +1.9% | Counted whole |
| Assaria | 421 | −2.1% | 0.8% |
| Gypsum | 387 | −4.2% | 0.7% |
| Brookville | 236 | −2.1% | 0.4% |
| Smolan | 158 | −3.7% | 0.3% |
| New Cambria | 106 | +1.0% | 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). 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 24,146 homes, 75% are detached houses, against 72% across Kansas; 10% are in buildings of five or more homes. The homes are older than Kansas' as a whole: half were built before 1965 (1975 for Kansas), and 44% date from before 1960. 67% of occupied homes are lived in by their owner (Kansas: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Saline County | Kansas |
|---|---|---|
| Housing units | 24,146 | 1,285,221 |
| Detached houses | 75% | 72% |
| In buildings of 5 or more | 10% | 13% |
| Mobile homes | 2% | 4% |
| Built before 1960 | 44% | 33% |
| Built since 2000 | 10% | 20% |
| Middle year built | 1965 | 1975 |
| Owner-occupied | 67% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.