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 Haskell County, Kansas
EPA puts Haskell County in Zone 1, its highest radon zone, and only 15 radon tests from it are on file with CDC (2021). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
52.2%
Seward County
- Seward
- 52.2%
- Finney
- 30.1%
2 of 7 neighbours have 30+ tests, 2019
Nearest county
52.2%
Seward County, 25 miles
- Seward
- 52.2%
- Kansas
- 33.7%
Share at 4+ pCi/L, 92 tests, 2019
Ground above low
100.0%
Level with Kansas
- Haskell
- 100.0%
- Kansas
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
15
Too few for a share
- Haskell
- 15
- Needed
- 30
2021
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Haskell County
Starts at EPA's action level
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 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.
The data
Haskell County, At a glance
Haskell County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Haskell County in
USGS geologic potential: High across 92% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Haskell County, 2021
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2016 | 75.0% |
| 2018 | 100.0% |
| 2019 | 50.0% |
| 2021 | 60.0% |
2021: 60.0%. Across these years the share ran from 50.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 15 tests were reported to CDC for Haskell County over 2021, 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: 2021. Measured data period: 2016 to 2021 (every CDC figure on file).
Haskell County, Compared
Haskell County radon figures, compared
Calculated by Radon411CDC's largest figure for Haskell County rests on 15 tests in 2021, 9 of them at or above 4 pCi/L, so each test moves its share by 6.7 points and no rank or comparison is drawn from it. Results reached as high as 14.1 pCi/L, with a middle value of 4.3 pCi/L.
Of the counties bordering it, 2 have a figure in 2019: Seward County reported the largest share at or above 4 pCi/L, 52.2%, and Finney County the smallest, 30.1%. Farther out, Ford County (55 miles away) at 42.4%, Scott County (63 miles away) at 61.5% and Pawnee County (99 miles away) at 66.7% have figures too. Pooled across 102 Kansas counties, 33.7% of reported tests reached that level; across every county in the country with a figure, 29.0%.
Statewide for the same period, Jewell County reported the highest share (71.9%) and Reno County the lowest (20.8%). EPA's 1993 map puts Haskell County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 92% of the county's land high radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Haskell County, Geology
The ground under Haskell County
PredictedMost of the ground under Haskell County is one class on USGS's geologic map: 91.7% of its land is high radon potential, with 8.3% moderate. The map puts 91.7% of Haskell County in the area it calls Ogallala Formation and 6.5% 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 | 91.7% |
| Arkansas River Lowlands | Dune sands and alluvium. | Moderate | 10 | 6.5% |
| Cimmaron River Valley | Tertiary and Quaternary sandstone, siltstone, shale, and alluvium overlain by eolian sand and loess. | Moderate | 10 | 1.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Haskell County beside the ground around it
Haskell County has more high-potential ground than Kansas as a whole: 91.7% of its land against 59.9%. Of the 7 counties that border it, none has as large a share of high-potential ground; Grant County comes nearest at 80.8%.
The map rates the ground, not the air in any home.
Local help
Haskell County, Local resources
Radon testing and mitigation in Haskell 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.
What Kansas's program says
- Phone
- (800) 693-5343
What it means
Haskell County, Questions
Questions about radon in Haskell County
Are radon levels high in Haskell County?
In 2021, 60.0% of the radon tests reported to CDC for Haskell County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.3 pCi/L. Of the counties bordering it, 2 have a figure in 2019: Seward County reported the largest share at or above 4 pCi/L, 52.2%, and Finney County the smallest, 30.1%.
Which counties border Haskell County?
Haskell County borders 7 counties: Finney County, Grant County, Gray County, Seward County, Stevens County, Kearny County and Meade County.
Products
Haskell County, Products
Testing a home in Haskell County
No CDC figure names Haskell County; the nearest county with one, Seward County (25 miles away), reported 52.2% of its tests at or above 4 pCi/L in 2019, the only reading nearby until a test of this home. In Zone 1 the year-round level in Haskell 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
Monitor
Wave Plus battery radon and air quality monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- App only
Method: Alpha spectrometry
Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Haskell County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Haskell County
Explore
Haskell County, Bordering counties
Counties bordering Haskell County
Calculated by Radon411- Radon levels in Kearny CountyEPA zone 1
62.5%at or above 4 pCi/L
Median 5.5 pCi/L · 8 tests
- Radon levels in Grant CountyEPA zone 1
55.6%at or above 4 pCi/L
Median 4.2 pCi/L · 18 tests
- Radon levels in Seward CountyEPA zone 2
52.2%at or above 4 pCi/L
Median 4.0 pCi/L · 92 tests
- Radon levels in Gray CountyEPA zone 1
44.4%at or above 4 pCi/L
Median 3.5 pCi/L · 18 tests
- Radon levels in Stevens CountyEPA zone 2
36.0%at or above 4 pCi/L
Median 2.6 pCi/L · 25 tests
- Radon levels in Meade CountyEPA zone 1
33.3%at or above 4 pCi/L
Median 2.7 pCi/L · 6 tests
- Radon levels in Finney CountyEPA zone 1
30.1%at or above 4 pCi/L
Median 3.0 pCi/L · 156 tests
Haskell County, Cities and towns
Cities and towns in Haskell County
About 3,599 people live in Haskell County by the Census Bureau's estimate for July 1, 2025, 159 fewer than in 2020 (−4.2%). Spread over its land, that is 6.2 people to the square mile. Its largest town, Sublette, has 1,343 residents, 37.3% of the total. Together its 2 incorporated places hold 66.4% of those residents; the other 33.6% live outside any of them. Reported testing is thin here: 15 tests over 2021, or 4.2 for every 1,000 residents (2025 estimate), where Kansas as a whole comes to 23.5.
From Sublette to Satanta, CDC publishes no figure by town: each reads Haskell County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Sublette | 1,343 | −4.6% | 37.3% |
| Satanta | 1,046 | −4.3% | 29.1% |
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).
Haskell County, Homes
Homes in Haskell County
Haskell County is a place of houses on their own lots: 79% of its 1,545 homes are detached single-family houses, against 72% across Kansas. Half of its homes were built before 1975, close to Kansas' 1975: 22% date from before 1960 and 16% from 2000 or later. Owners live in 77% of the occupied homes (Kansas: 67%), so for most households a test and a fix are their own to order.
| Homes | Haskell County | Kansas |
|---|---|---|
| Housing units | 1,545 | 1,285,221 |
| Detached houses | 79% | 72% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 18% | 4% |
| Built before 1960 | 22% | 33% |
| Built since 2000 | 16% | 20% |
| Middle year built | 1975 | 1975 |
| Owner-occupied | 77% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.