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RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
EPA puts Finney County in Zone 1, its highest radon zone, and 23.7% of its 76 reported radon tests (2022) 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
23.7%
8.3 pts below KS
76 tests, 2022
Median result
3.0pCi/L
Below action level
Midpoint of the tests, 2022
Tests reported
76
23rd of 38 by tests
Reported to CDC before any fix, 2022
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Kansas
34 of 38
Lowest quarter
By share, of 38 with 30+ tests
Read a result for Finney County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.0 pCi/L
Between 2 and 4 pCi/L
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Finney County's median reported result, 2022.
The data
Finney County, At a glance
Predicted: EPA radon zone
EPA puts all of Finney County in
USGS geologic potential: High across 71% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2016 | 22.9% |
| 2017 | 43.1% |
| 2018 | 15.9% |
| 2019 | 30.1% |
| 2020 | 30.0% |
| 2021 | 33.3% |
| 2022 | 23.7% |
2022: 23.7%. Across these years the share ran from 15.9% to 43.1%. Each column counts radon tests reported to CDC that year, not homes.
These are the 76 tests reported to CDC for Finney 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).
Finney County, Compared
Finney County's 76 reported tests in 2022 had a middle value of 3.0 pCi/L and a maximum of 34.9 pCi/L, and 23.7% reached 4 pCi/L. Kansas as a whole (96 Kansas counties, pooled) comes to 32.0%: 8.3 points higher than here.
Among its state's counties it ranks 34th of 38 Kansas counties with 30 or more tests for the same period. Statewide for the same period, Mitchell County reported the highest share (57.4%) and Crawford County the lowest (5.9%).
Below the action level, 17 tests (22.4%) came in under 2 pCi/L, against 45.8% statewide, and 41 tests (53.9%) fell between 2 and 4, against 22.1% statewide. The busiest year on file was 2021, with 243 tests reported; the quietest, 2022, had 76.
EPA's 1993 zone map puts Finney County in Zone 1, a predicted county average above 4 pCi/L. USGS geology rates 71% of the county's land high radon potential.
Over 7 years of annual figures the share held within 2 points, from 22.9% in 2016 to 23.7% in 2022; its peak was 43.1% in 2017.
CDC also counts 7 tests taken after mitigation in Finney County for the same period: tests in homes where a fix was already in.
| Year | Tests | Finney County, at or above 4 pCi/L | Kansas, pooled |
|---|---|---|---|
| 2016 | 105 | 22.9% | 35.4% |
| 2017 | 123 | 43.1% | 37.3% |
| 2018 | 132 | 15.9% | 37.3% |
| 2019 | 156 | 30.1% | 33.7% |
| 2020 | 110 | 30.0% | 31.3% |
| 2021 | 243 | 33.3% | 31.8% |
| 2022 | 76 | 23.7% | 32.0% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Finney County, Geology
USGS's geologic map splits Finney County: 71.1% of its land is high radon potential and 28.9% moderate. The map puts 53.9% of Finney County in the area it calls Ogallala Formation and 28.9% in Arkansas River Lowlands, with one smaller area beside them. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Ogallala Formation | Tertiary sandstone, in part covered by windblown eolian sand and loess deposits. | High | 12 | 53.9% |
| Arkansas River Lowlands | Dune sands and alluvium. | Moderate | 10 | 28.9% |
| Smoky Hills | Cretaceous marine sandstone, shale, and siltstone covered by discontinuous loess deposits. | High | 12 | 17.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Finney County has more high-potential ground than Kansas as a whole: 71.1% of its land against 59.9%. Of the 8 counties that border it, 7 have more high-potential ground, Hodgeman County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Finney County, Local resources
Listed radon businesses with an address in Finney County:
Listed radon professionals by town: Garden City
What it means
Finney County, Questions
In 2022, 23.7% of the radon tests reported to CDC for Finney County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.0 pCi/L. Of 38 Kansas counties with 30 or more tests for the same period, 33 reported a higher share; pooled, the state comes to 32.0%.
Finney County borders 8 counties: Haskell County, Kearny County, Gray County, Grant County, Scott County, Lane County, Hodgeman County and Ness County.
Products
Finney County, Products
In Finney County, 23.7% of 76 tests reported to CDC in 2022 reached 4 pCi/L, against 32.0% pooled across Kansas. In Zone 1 the year-round level in Finney 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 monitors: 1 of 3
Finney County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Finney County
Explore
Finney County, Bordering counties
87.5%at or above 4 pCi/L
Median 6.8 pCi/L · 8 tests · 63.8 points above Finney County
75.0%at or above 4 pCi/L
Median 7.2 pCi/L · 20 tests · 51.3 points above Finney County
69.2%at or above 4 pCi/L
Median 10.2 pCi/L · 26 tests · 45.5 points above Finney County
50.0%at or above 4 pCi/L
Median 4.5 pCi/L · 2 tests · 26.3 points above Finney County
35.7%at or above 4 pCi/L
Median 3.0 pCi/L · 14 tests · 12.0 points above Finney County
0.0%at or above 4 pCi/L
Median 2.8 pCi/L · 2 tests · 23.7 points below Finney County
No CDC figure for 2022; its page reads it against its own neighbours.
No CDC figure for 2022; its page reads it against its own neighbours.
Finney County, Cities and towns
About 37,505 people live in Finney County by the Census Bureau's estimate for July 1, 2025, 802 fewer than in 2020 (−2.1%). That works out to 29 people per square mile of land. Garden City alone is home to 27,402 of them, 73.1% of the total. Together its 2 incorporated places hold 78.9% of those residents; the other 21.1% live outside any of them. Reported testing is thin here: 76 tests over 2022, or 2.0 for every 1,000 residents (2025 estimate), where Kansas as a whole comes to 6.2.
From Garden City to Holcomb, CDC publishes no figure by town: each reads Finney County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Garden City | 27,402 | −2.3% | 73.1% |
| Holcomb | 2,190 | −2.3% | 5.8% |
2 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).
Finney County, Homes
Of Finney County's 14,279 homes, 61% are detached houses, against 72% across Kansas; 13% are mobile homes. Half of its homes were built before 1977, close to Kansas' 1975: 21% date from before 1960 and 13% from 2000 or later. 64% 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 | Finney County | Kansas |
|---|---|---|
| Housing units | 14,279 | 1,285,221 |
| Detached houses | 61% | 72% |
| In buildings of 5 or more | 10% | 13% |
| Mobile homes | 13% | 4% |
| Built before 1960 | 21% | 33% |
| Built since 2000 | 13% | 20% |
| Middle year built | 1977 | 1975 |
| Owner-occupied | 64% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.