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 Jackson County, Kansas
EPA puts Jackson 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
13.3%
22.1 pts below KS
- Jackson
- 13.3%
- Kansas
- 35.4%
83 tests, 2016
Median result
0.8pCi/L
Below action level
- Jackson
- 0.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2016
Tests reported
83
22nd of 38 by tests
- Jackson
- 83
- Johnson
- 6,586
Reported to CDC before any fix, 2016
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
38 of 38
Lowest quarter
- Jackson
- 13.3%
- Mitchell
- 78.4%
By share, of 38 with 30+ tests
Read a result for Jackson County
Starts at Jackson County's median, 0.8 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.8 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. Jackson County's median reported result, 2016.
The data
Jackson County, At a glance
Jackson County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Jackson County in
USGS geologic potential: Moderate across 53% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Jackson County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2016 | 13.3% |
| 2017 | 47.8% |
| 2018 | 42.9% |
| 2019 | 28.0% |
| 2020 | 18.2% |
| 2021 | 15.8% |
| 2022 | 23.8% |
2022: 23.8%. Across these years the share ran from 13.3% to 47.8%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 21 tests were reported to CDC for Jackson 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).
Jackson County, Compared
Jackson County radon figures, compared
Calculated by Radon411Jackson County reports fewer high tests than Kansas overall. 13.3% of its 83 tests in 2016 were at or above 4 pCi/L. That is 22.1 points below the 35.4% pooled from 99 Kansas counties.
The newest figure, in 2022, counts only 21 tests (23.8% at or above 4 pCi/L), too few to compare, so this reading uses the 83-test figure.
Ordered from highest share down, it comes 38th of 38 Kansas counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 31.2%; Jackson County sits 17.9 points below it.
Next door, the shares run from 33.1% in Pottawatomie County to 58.7% in Nemaha County. The reported tests do not follow EPA's Zone 1 label for Jackson County (predicted average above 4 pCi/L): 13.3% of them reached 4 pCi/L, fewer than that label suggests.
Half the tests came in under 0.8 pCi/L and half over it; the single highest reached 12.8 pCi/L. The rest split 79.5% under 2 pCi/L and 7.2% from 2 to 4 (Kansas: 36.1% and 28.5%).
The busiest year on file was 2016, with 83 tests reported; the quietest, 2022, had 21.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Jackson County, Geology
The ground under Jackson County
PredictedUSGS's geologic map splits Jackson County: 52.6% of its land is moderate radon potential and 47.4% high. The map puts 52.6% of Jackson County in the area it calls Glaciated Area and 47.4% in Glacial Drift. USGS gives the first a radon index of 9, in the moderate band (9 to 11), and the second 12, in the high band (12 to 17).
| 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 | 52.6% |
| Glacial Drift | Glacial drift and loess of varying thickness, largely locally derived from underlying and nearby Paleozoic sedimentary rocks. | High | 12 | 47.4% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Jackson County beside the ground around it
Kansas as a whole has more high-potential ground than Jackson County: 59.9% of its land, against 47.4% here. Of the 6 counties that border it, 4 have more high-potential ground, Atchison County the most at 93.5%.
The map rates the ground, not the air in any home.
Local help
Jackson County, Local resources
Radon testing and mitigation in Jackson 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
Jackson County, Questions
Questions about radon in Jackson County
Are radon levels high in Jackson County?
In 2022, 23.8% of the radon tests reported to CDC for Jackson County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.7 pCi/L. Of 38 Kansas counties with 30 or more tests for the same period, 37 reported a higher share; pooled, the state comes to 35.4%.
Which counties border Jackson County?
Jackson County borders 6 counties: Atchison County, Jefferson County, Nemaha County, Brown County, Pottawatomie County and Shawnee County.
Products
Jackson County, Products
Testing a home in Jackson County
In Jackson County, 13.3% of 83 tests reported to CDC in 2016 reached 4 pCi/L, against 35.4% pooled across Kansas. In Zone 1 the year-round level in Jackson 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
MonitorAEGTEST
HOUND-1085 palm-sized rechargeable radon detector
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
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
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Jackson County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Jackson County
Explore
Jackson County, Bordering counties
Counties bordering Jackson County
Calculated by Radon411- Radon levels in Brown CountyEPA zone 1
68.0%at or above 4 pCi/L
Median 7.4 pCi/L · 25 tests · 54.7 points above Jackson County
- Radon levels in Nemaha CountyEPA zone 1
58.7%at or above 4 pCi/L
Median 5.8 pCi/L · 75 tests · 45.4 points above Jackson County
- Radon levels in Jefferson CountyEPA zone 2
40.4%at or above 4 pCi/L
Median 2.6 pCi/L · 57 tests · 27.1 points above Jackson County
- Radon levels in Shawnee CountyEPA zone 2
37.1%at or above 4 pCi/L
Median 3.2 pCi/L · 714 tests · 23.8 points above Jackson County
- Radon levels in Atchison CountyEPA zone 1
35.7%at or above 4 pCi/L
Median 3.5 pCi/L · 14 tests · 22.4 points above Jackson County
- Radon levels in Pottawatomie CountyEPA zone 1
33.1%at or above 4 pCi/L
Median 2.9 pCi/L · 151 tests · 19.8 points above Jackson County
Jackson County, Cities and towns
Cities and towns in Jackson County
The Census Bureau estimates 13,438 residents in Jackson County for July 1, 2025, 201 more than in 2020 (+1.5%). That works out to 20 people per square mile of land. Its largest town, Holton, has 3,396 residents, 25.3% of the total. Together its 9 incorporated places hold 38.9% of those residents; the other 61.1% live outside any of them. CDC's 83 reported tests for 2016 work out to 6.2 per 1,000 residents (2025 estimate), close to Kansas' 5.8.
From Holton to Soldier, CDC publishes no figure by town: each reads Jackson County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Holton | 3,396 | −0.1% | 25.3% |
| Hoyt | 593 | −0.3% | 4.4% |
| Mayetta | 353 | +0.9% | 2.6% |
| Whiting | 197 | +2.6% | 1.5% |
| Delia | 154 | +2.7% | 1.1% |
| Circleville | 149 | −0.7% | 1.1% |
| Denison | 144 | −0.7% | 1.1% |
| Netawaka | 139 | −0.7% | 1.0% |
| Soldier | 101 | +1.0% | 0.8% |
9 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).
Jackson County, Homes
Homes in Jackson County
Jackson County is a place of houses on their own lots: 85% of its 5,615 homes are detached single-family houses, against 72% across Kansas. Half of its homes were built before 1977, close to Kansas' 1975: 34% date from before 1960 and 19% from 2000 or later. Owners live in 78% of the occupied homes (Kansas: 67%), so for most households a test and a fix are their own to order.
| Homes | Jackson County | Kansas |
|---|---|---|
| Housing units | 5,615 | 1,285,221 |
| Detached houses | 85% | 72% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 6% | 4% |
| Built before 1960 | 34% | 33% |
| Built since 2000 | 19% | 20% |
| Middle year built | 1977 | 1975 |
| Owner-occupied | 78% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.