
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
EPA puts Pawnee County in Zone 1, its highest radon zone, and high results are common there: 43.4% of the 53 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
43.4%
11.4 pts above KS
53 tests, 2022
Median result
3.7pCi/L
Below action level
Midpoint of the tests, 2022
Tests reported
53
27th 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
8 of 38
Top quarter
By share, of 38 with 30+ tests
Read a result for Pawnee County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.7 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. Pawnee County's median reported result, 2022.
The data
Pawnee County, At a glance
Predicted: EPA radon zone
EPA puts all of Pawnee County in
USGS geologic potential: High across 58% 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 | 42.1% |
| 2017 | 66.7% |
| 2018 | 72.7% |
| 2019 | 66.7% |
| 2020 | 54.2% |
| 2021 | 56.3% |
| 2022 | 43.4% |
2022: 43.4%. Across these years the share ran from 42.1% to 72.7%. Each column counts radon tests reported to CDC that year, not homes.
These are the 53 tests reported to CDC for Pawnee 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).
Pawnee County, Compared
In Pawnee County, about 4 in 10 reported tests in 2022 (23 of 53) were at or above EPA's action level. Against the national pool of 23.9%, the gap is 19.5 points higher. Across 96 Kansas counties pooled together, 32.0% of tests reached that level, so Pawnee County runs 11.4 points above its state.
Barton County, the one bordering county with a figure for the same period, reported 53.8%. By share, Pawnee County is 8th of 38 Kansas counties with 30 or more tests for the same period.
Year by year, 2019 opened at 66.7% and 2022 closed at 43.4% (down 23.3 points), with 2019 the high at 66.7%. Half the tests came in under 3.7 pCi/L and half over it; the single highest reached 19.2 pCi/L. Below the action level, 17 tests (32.1%) came in under 2 pCi/L, against 45.8% statewide, and 13 tests (24.5%) fell between 2 and 4, against 22.1% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 43.4% share point the same way here. USGS geology rates 58% of the county's land high radon potential.
The busiest year on file was 2021, with 96 tests reported; the quietest, 2017, had 9.
| Year | Tests | Pawnee County, at or above 4 pCi/L | Kansas, pooled |
|---|---|---|---|
| 2019 | 33 | 66.7% | 33.7% |
| 2021 | 96 | 56.3% | 31.8% |
| 2022 | 53 | 43.4% | 32.0% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Pawnee County, Geology
USGS's geologic map splits Pawnee County: 58.3% of its land is high radon potential and 41.7% moderate. The map puts 51.6% of Pawnee County in the area it calls Smoky Hills and 41.7% 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 |
|---|---|---|---|---|
| Smoky Hills | Cretaceous marine sandstone, shale, and siltstone covered by discontinuous loess deposits. | High | 12 | 51.6% |
| Arkansas River Lowlands | Dune sands and alluvium. | Moderate | 10 | 41.7% |
| Ogallala Formation | Tertiary sandstone, in part covered by windblown eolian sand and loess deposits. | High | 12 | 6.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
On high-potential ground Pawnee County is close to Kansas as a whole: 58.3% of its land against 59.9%. Of the 6 counties that border it, 4 have more high-potential ground, Hodgeman County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Pawnee County, Local resources
What it means
Pawnee County, Questions
In 2022, 43.4% of the radon tests reported to CDC for Pawnee County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.7 pCi/L. Of 38 Kansas counties with 30 or more tests for the same period, 7 reported a higher share; pooled, the state comes to 32.0%.
Pawnee County borders 6 counties: Edwards County, Rush County, Stafford County, Barton County, Hodgeman County and Ness County.
Products
Pawnee County, Products
In Pawnee County, 43.4% of 53 tests reported to CDC in 2022 reached 4 pCi/L, against 32.0% pooled across Kansas. In Zone 1 the year-round level in Pawnee 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
Pawnee County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Pawnee County
Explore
Pawnee County, Bordering counties
69.2%at or above 4 pCi/L
Median 10.2 pCi/L · 26 tests · 25.8 points above Pawnee County
53.8%at or above 4 pCi/L
Median 4.1 pCi/L · 39 tests · 10.4 points above Pawnee County
50.0%at or above 4 pCi/L
Median 4.2 pCi/L · 6 tests · 6.6 points above Pawnee County
33.3%at or above 4 pCi/L
Median 3.4 pCi/L · 3 tests · 10.1 points below Pawnee County
30.0%at or above 4 pCi/L
Median 2.4 pCi/L · 10 tests · 13.4 points below Pawnee County
No CDC figure for 2022; its page reads it against its own neighbours.
Pawnee County, Cities and towns
About 5,991 people live in Pawnee County by the Census Bureau's estimate for July 1, 2025, 260 fewer than in 2020 (−4.2%). Spread over its land, that is 7.9 people to the square mile. Larned alone is home to 3,596 of them, 60.0% of the total. Together its 4 incorporated places hold 67.7% of those residents; the other 32.3% live outside any of them. CDC's 53 reported tests for 2022 work out to 8.8 per 1,000 residents (2025 estimate), close to Kansas' 6.2.
From Larned to Rozel, CDC publishes no figure by town: each reads Pawnee County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Larned | 3,596 | −4.8% | 60.0% |
| Burdett | 216 | −4.4% | 3.6% |
| Garfield | 148 | −5.1% | 2.5% |
| Rozel | 94 | −6.0% | 1.6% |
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).
Pawnee County, Homes
Pawnee County is a place of houses on their own lots: 80% of its 3,045 homes are detached single-family houses, against 72% across Kansas. The homes are older than Kansas' as a whole: half were built before 1955 (1975 for Kansas), and 58% date from before 1960. 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 | Pawnee County | Kansas |
|---|---|---|
| Housing units | 3,045 | 1,285,221 |
| Detached houses | 80% | 72% |
| In buildings of 5 or more | 6% | 13% |
| Mobile homes | 6% | 4% |
| Built before 1960 | 58% | 33% |
| Built since 2000 | 12% | 20% |
| Middle year built | 1955 | 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.