Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Harvey County, Kansas
EPA puts Harvey County in Zone 2, its middle radon zone, and 34.1% of its 232 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
34.1%
2.1 pts above KS
- Harvey
- 34.1%
- Kansas
- 32.0%
232 tests, 2022
Median result
2.8pCi/L
Below action level
- Harvey
- 2.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2022
Tests reported
232
12th of 38 by tests
- Harvey
- 232
- Johnson
- 5,240
Reported to CDC before any fix, 2022
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Kansas
18 of 38
Middle half
- Harvey
- 34.1%
- Mitchell
- 57.4%
By share, of 38 with 30+ tests
Read a result for Harvey County
Starts at Harvey County's median, 2.8 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.8 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Harvey County's median reported result, 2022.
The data
Harvey County, At a glance
Harvey County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Harvey County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Harvey County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2016 | 35.9% |
| 2017 | 41.9% |
| 2018 | 38.1% |
| 2019 | 36.2% |
| 2020 | 35.6% |
| 2021 | 31.6% |
| 2022 | 34.1% |
2022: 34.1%. Across these years the share ran from 31.6% to 41.9%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 232 tests reported to CDC for Harvey 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).
Harvey County, Compared
Harvey County radon figures, compared
Calculated by Radon411In Harvey County, about 3 in 10 reported tests in 2022 (79 of 232) were at or above EPA's action level. Against the national pool of 23.9%, the gap is 10.2 points higher. Across 96 Kansas counties pooled together, 32.0% of tests reached that level, so Harvey County runs 2.1 points above its state.
Of 5 neighbours with a figure, 2 reported a larger share at or above 4 pCi/L and 3 a smaller one; the spread is 18.4% (Sedgwick County) to 51.6% (McPherson County). By share, Harvey County is 18th of 38 Kansas counties with 30 or more tests for the same period.
Year by year, 2016 opened at 35.9% and 2022 closed at 34.1% (about level), with 2017 the high at 41.9%. Half the tests came in under 2.8 pCi/L and half over it; the single highest reached 23.5 pCi/L. Below the action level, 81 tests (34.9%) came in under 2 pCi/L, against 45.8% statewide, and 72 tests (31.0%) fell between 2 and 4, against 22.1% statewide.
Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 34.1% share point the same way here. USGS geology rates 100% of the county's land moderate radon potential. CDC also counts 22 tests taken after mitigation in Harvey County for the same period: tests in homes where a fix was already in.
The busiest year on file was 2021, with 759 tests reported; the quietest, 2016, had 170.
Harvey CountyKansas, pooled
| Year | Tests | Harvey County, at or above 4 pCi/L | Kansas, pooled |
|---|---|---|---|
| 2016 | 170 | 35.9% | 35.4% |
| 2017 | 236 | 41.9% | 37.3% |
| 2018 | 210 | 38.1% | 37.3% |
| 2019 | 221 | 36.2% | 33.7% |
| 2020 | 270 | 35.6% | 31.3% |
| 2021 | 759 | 31.6% | 31.8% |
| 2022 | 232 | 34.1% | 32.0% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Harvey County, Geology
The ground under Harvey County
PredictedUSGS's geologic map puts all of Harvey County's mapped land in one class: moderate radon potential. 96.1% of it lies in the area the map calls Glaciated Area, to which USGS gives a radon index of 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Glaciated Area | Glacial till underlain by Pennsylvanian and Permian marine and nonmarine sedimentary shale, sandstone, limestone, coal. | Moderate | 9 | 96.1% |
| Arkansas River Lowlands | Dune sands and alluvium. | Moderate | 10 | 3.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Harvey County beside the ground around it
Across Kansas 59.9% of the land is rated high; none of Harvey County's is. Of the 5 counties that border it, 3 have more high-potential ground, McPherson County the most at 47.9%.
The map rates the ground, not the air in any home.
Local help
Harvey County, Local resources
Radon testing and mitigation in Harvey County
Listed radon businesses with an address in Harvey 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: Newton, Hesston, North Newton
What Kansas's program says
- Phone
- (800) 693-5343
What it means
Harvey County, Questions
Questions about radon in Harvey County
Are radon levels high in Harvey County?
In 2022, 34.1% of the radon tests reported to CDC for Harvey County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.8 pCi/L. Of 38 Kansas counties with 30 or more tests for the same period, 17 reported a higher share; pooled, the state comes to 32.0%.
Which counties border Harvey County?
Harvey County borders 5 counties: Marion County, McPherson County, Sedgwick County, Reno County and Butler County.
Products
Harvey County, Products
Testing a home in Harvey County
In Harvey County, 34.1% of 232 tests reported to CDC in 2022 reached 4 pCi/L, against 32.0% pooled across Kansas. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Harvey County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Monitor
EcoBlu plug-in digital radon monitor with a display
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Harvey County, Bordering counties
Counties bordering Harvey 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 · 17.5 points above Harvey County
- Radon levels in Marion CountyEPA zone 1
40.0%at or above 4 pCi/L
Median 2.5 pCi/L · 45 tests · 5.9 points above Harvey County
- Radon levels in Butler CountyEPA zone 2
25.5%at or above 4 pCi/L
Median 2.1 pCi/L · 550 tests · 8.6 points below Harvey County
- Radon levels in Reno CountyEPA zone 2
25.4%at or above 4 pCi/L
Median 2.2 pCi/L · 240 tests · 8.7 points below Harvey County
- Radon levels in Sedgwick CountyEPA zone 2
18.4%at or above 4 pCi/L
Median 1.3 pCi/L · 4,911 tests · 15.7 points below Harvey County
Harvey County, Cities and towns
Cities and towns in Harvey County
About 33,580 people live in Harvey County by the Census Bureau's estimate for July 1, 2025, 416 fewer than in 2020 (−1.2%). That works out to 62 people per square mile of land. Newton alone is home to 18,353 of them, 54.7% of the total. CDC's 232 reported tests for 2022 work out to 6.9 per 1,000 residents (2025 estimate), close to Kansas' 6.2.
From Newton to Walton, CDC publishes no figure by town: each reads Harvey County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Newton | 18,353 | −1.2% | 54.7% |
| Hesston | 3,458 | −1.1% | 10.3% |
| Halstead | 2,132 | −1.9% | 6.3% |
| North Newton | 1,791 | −1.4% | 5.3% |
| Sedgwickextends beyond Harvey County | 1,575 | −1.6% | Counted whole |
| Burrton | 836 | −3.1% | 2.5% |
| Walton | 215 | −3.6% | 0.6% |
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 Harvey County is counted whole, so it has no share.
Harvey County, Homes
Homes in Harvey County
Harvey County is a place of houses on their own lots: 79% of its 14,621 homes are detached single-family houses, against 72% across Kansas. Half of its homes were built before 1970, close to Kansas' 1975: 39% date from before 1960 and 18% from 2000 or later. 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 | Harvey County | Kansas |
|---|---|---|
| Housing units | 14,621 | 1,285,221 |
| Detached houses | 79% | 72% |
| In buildings of 5 or more | 6% | 13% |
| Mobile homes | 2% | 4% |
| Built before 1960 | 39% | 33% |
| Built since 2000 | 18% | 20% |
| Middle year built | 1970 | 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.