Long-term kit
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
Radon Levels in Kingman County, Kansas
EPA puts Kingman County in Zone 1, its highest radon zone, and only 21 radon tests from it are on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
3.4%
28.4 pts below KS
- Kingman
- 3.4%
- Kansas
- 31.8%
87 tests, 2021
Median result
1.6pCi/L
Below action level
- Kingman
- 1.6 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2021
Tests reported
87
41st of 62 by tests
- Kingman
- 87
- Johnson
- 25,860
Reported to CDC before any fix, 2021
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
61 of 62
Lowest quarter
- Kingman
- 3.4%
- Norton
- 93.8%
By share, of 62 with 30+ tests
Read a result for Kingman County
Starts at Kingman County's median, 1.6 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.6 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Kingman County's median reported result, 2021.
The data
Kingman County, At a glance
Kingman County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Kingman County in
USGS geologic potential: High across 52% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Kingman County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2016 | 8.3% |
| 2017 | 20.0% |
| 2018 | 12.5% |
| 2019 | 4.0% |
| 2020 | 24.0% |
| 2021 | 3.4% |
| 2022 | 19.0% |
2022: 19.0%. Across these years the share ran from 3.4% to 24.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 21 tests were reported to CDC for Kingman County over 2022, 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: 2022. Measured data period: 2016 to 2022 (every CDC figure on file).
Kingman County, Compared
Kingman County radon figures, compared
Calculated by Radon411Only 3 of 87 radon tests reported for Kingman County in 2021 reached 4 pCi/L (3.4%). The median result, 1.6 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 7.6 pCi/L.
The newest figure, in 2022, counts only 21 tests (19.0% at or above 4 pCi/L), too few to compare, so this reading uses the 87-test figure.
Across 96 Kansas counties pooled together, 31.8% of tests reached that level, so Kingman County runs 28.4 points below its state. Against the national pool of 24.4%, the gap is 21.0 points lower. Its place in the state: 61st of 62 Kansas counties with 30 or more tests for the same period.
The reported tests do not follow EPA's Zone 1 label for Kingman County (predicted average above 4 pCi/L): 3.4% of them reached 4 pCi/L, fewer than that label suggests. Of 4 neighbours with a figure, all 4 reported a larger share at or above 4 pCi/L; the spread is 15.9% (Sedgwick County) to 31.6% (Sumner County).
Below the action level, 57 tests (65.5%) came in under 2 pCi/L, against 45.3% statewide, and 27 tests (31.0%) fell between 2 and 4, against 22.9% statewide. USGS geology rates 52% of the county's land high radon potential.
The busiest year on file was 2021, with 87 tests reported; the quietest, 2017, had 5.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Kingman County, Geology
The ground under Kingman County
PredictedUSGS's geologic map splits Kingman County: 51.8% of its land is high radon potential and 48.2% moderate. The map puts 51.8% of Kingman County in the area it calls Ogallala Formation and 48.2% in Glaciated Area. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 9, 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 | 51.8% |
| Glaciated Area | Glacial till underlain by Pennsylvanian and Permian marine and nonmarine sedimentary shale, sandstone, limestone, coal. | Moderate | 9 | 48.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Kingman County beside the ground around it
On high-potential ground Kingman County is close to Kansas as a whole: 51.8% of its land against 59.9%. Of the 6 counties that border it, 1 has more high-potential ground, Pratt County the most at 71.6%.
The map rates the ground, not the air in any home.
Local help
Kingman County, Local resources
Radon testing and mitigation in Kingman County
Listed radon businesses with an address in Kingman 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: Norwich
What Kansas's program says
- Phone
- (800) 693-5343
What it means
Kingman County, Questions
Questions about radon in Kingman County
Are radon levels high in Kingman County?
In 2022, 19.0% of the radon tests reported to CDC for Kingman County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.1 pCi/L. Of 62 Kansas counties with 30 or more tests for the same period, 60 reported a higher share; pooled, the state comes to 31.8%.
Which counties border Kingman County?
Kingman County borders 6 counties: Harper County, Reno County, Pratt County, Sedgwick County, Barber County and Sumner County.
Products
Kingman County, Products
Testing a home in Kingman County
In Kingman County, 3.4% of 87 tests reported to CDC in 2021 reached 4 pCi/L, against 31.8% pooled across Kansas. In Zone 1 the year-round level in Kingman 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
XR0A-SR battery digital radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
Short-term kit
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
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
Kingman County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Kingman County
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Kingman County, Bordering counties
Counties bordering Kingman County
Calculated by Radon411- Radon levels in Sumner CountyEPA zone 2
31.6%at or above 4 pCi/L
Median 2.4 pCi/L · 285 tests · 28.2 points above Kingman County
- Radon levels in Pratt CountyEPA zone 1
29.4%at or above 4 pCi/L
Median 2.8 pCi/L · 102 tests · 26.0 points above Kingman County
- Radon levels in Reno CountyEPA zone 2
18.1%at or above 4 pCi/L
Median 1.9 pCi/L · 648 tests · 14.7 points above Kingman County
- Radon levels in Sedgwick CountyEPA zone 2
15.9%at or above 4 pCi/L
Median 1.2 pCi/L · 16,650 tests · 12.5 points above Kingman County
- Radon levels in Harper CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 2.5 pCi/L · 15 tests · 3.4 points below Kingman County
- Radon levels in Barber CountyEPA zone 2
No CDC figure for 2021; its page reads it against its own neighbours.
Kingman County, Cities and towns
Cities and towns in Kingman County
Kingman County has been losing residents: from 7,427 in 2020 to 7,029 on July 1, 2025, a fall of 5.4% by the Census Bureau's estimates. Spread over its land, that is 8.1 people to the square mile. Its largest town, Kingman, has 2,884 residents, 41.0% of the total. Together its 7 incorporated places hold 55.5% of those residents; the other 44.5% live outside any of them. Reported testing is thin here: 87 tests over 2021, or 12.4 for every 1,000 residents (2025 estimate), where Kansas as a whole comes to 23.5.
From Kingman to Penalosa, CDC publishes no figure by town: each reads Kingman County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Kingman | 2,884 | −6.6% | 41.0% |
| Norwich | 413 | −6.3% | 5.9% |
| Cunningham | 409 | −6.8% | 5.8% |
| Zenda | 68 | −2.9% | 1.0% |
| Spivey | 57 | −3.4% | 0.8% |
| Nashville | 51 | −5.6% | 0.7% |
| Penalosa | 17 | −10.5% | 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).
Kingman County, Homes
Homes in Kingman County
Kingman County is a place of houses on their own lots: 88% of its 3,673 homes are detached single-family houses, against 72% across Kansas. The homes are older than Kansas' as a whole: half were built before 1957 (1975 for Kansas), and 55% date from before 1960. 70% 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 | Kingman County | Kansas |
|---|---|---|
| Housing units | 3,673 | 1,285,221 |
| Detached houses | 88% | 72% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 5% | 4% |
| Built before 1960 | 55% | 33% |
| Built since 2000 | 7% | 20% |
| Middle year built | 1957 | 1975 |
| Owner-occupied | 70% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.