Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Jasper County, Missouri
EPA puts Jasper County in Zone 2, its middle radon zone, and only 21 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
28.5%
2.3 pts below MO
- Jasper
- 28.5%
- Missouri
- 30.8%
256 tests, 2007 to 2016
Median result
2.0pCi/L
Below action level
- Jasper
- 2.0 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2007 to 2016
Tests reported
256
20th of 72 by tests
- Jasper
- 256
- St. Louis
- 16,567
Reported to CDC before any fix, 2007 to 2016
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 Missouri
43 of 72
Middle half
- Jasper
- 28.5%
- Atchison
- 70.5%
By share, of 72 with 30+ tests
Read a result for Jasper County
Starts at Jasper County's median, 2.0 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.0 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. Jasper County's median reported result, 2007 to 2016.
The data
Jasper County, At a glance
Jasper County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Jasper 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 Jasper County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 17.6% |
| 2015 | 21.1% |
| 2016 | 0.0% |
| 2017 | 0.0% |
| 2018 | 0.0% |
| 2019 | 0.0% |
| 2020 | 23.5% |
| 2021 | 5.3% |
| 2022 | 36.4% |
| 2023 | 42.9% |
2023: 42.9%. Across these years the share ran from 0.0% to 42.9%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 21 tests were reported to CDC for Jasper County over 2023, 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: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Jasper County, Compared
Jasper County radon figures, compared
Calculated by Radon411Jasper County's 256 reported tests over the 2007 to 2016 laboratory totals had a middle value of 2.0 pCi/L and a maximum of 35.4 pCi/L, and 28.5% reached 4 pCi/L. Missouri as a whole (115 Missouri counties, pooled) comes to 30.8%: 2.3 points higher than here.
The newest figure, in 2023, counts only 21 tests (42.9% at or above 4 pCi/L), too few to compare, so this reading uses the 256-test figure.
Among its state's counties it ranks 43rd of 72 Missouri counties with 30 or more tests for the same period. Statewide for the same period, Atchison County reported the highest share (70.5%) and Vernon County the lowest (9.1%).
Below the action level, 126 tests (49.2%) came in under 2 pCi/L, against 41.2% statewide, and 57 tests (22.3%) fell between 2 and 4, against 27.9% statewide. The busiest year on file was 2021, with 38 tests reported; the quietest, 2019, had 1.
EPA's 1993 zone map puts Jasper County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Next door, the shares run from 23.5% in Lawrence County to 34.8% in Newton County, with Lawrence County below Jasper County.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Jasper County, Geology
The ground under Jasper County
PredictedUSGS's geologic map puts all of Jasper County's mapped land in one class: moderate radon potential. The map puts 92.0% of Jasper County in the area it calls Springfield Plateau and 8.0% in Osage Plains. USGS gives both a radon index of 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Springfield Plateau | Mississippian limestone, shale, and sandstone. | Moderate | 11 | 92.0% |
| Osage Plains | Ordovician dolomite, sandstone, limestone, and shale. | Moderate | 11 | 8.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Jasper County beside the ground around it
Across Missouri 8.2% of the land is rated high; none of Jasper County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Barton County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Jasper County, Local resources
Radon testing and mitigation in Jasper County
Listed radon businesses with an address in Jasper County:
- Missouri Radon ProgramMissouri Radon Program, run by Missouri Department of Health and Senior Services, offers free or discounted test kits, and answers questions about testing and mitigation in Missouri.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Free radon test kits are available for Missouri residents (limit one per household).
- Compare kits
- Professionals in Missouri27 professionals are listed in Missouri.
Listed radon professionals by town: Webb City
What Missouri's program says
- Phone
- 573-751-6102
- radon@health.mo.gov
What it means
Jasper County, Questions
Questions about radon in Jasper County
Are radon levels high in Jasper County?
In 2023, 42.9% of the radon tests reported to CDC for Jasper County, Missouri were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.7 pCi/L. Of 72 Missouri counties with 30 or more tests for the same period, 42 reported a higher share; pooled, the state comes to 30.8%.
Which counties border Jasper County?
Jasper County borders 6 counties: Barton County, MO, Newton County, MO, Lawrence County, MO, Cherokee County, KS, Dade County, MO and Crawford County, KS.
Products
Jasper County, Products
Testing a home in Jasper County
In Jasper County, 28.5% of 256 tests reported to CDC over the 2007 to 2016 laboratory totals reached 4 pCi/L, against 30.8% pooled across Missouri. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Jasper 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
RM-63Pro rechargeable radon monitor with a touchscreen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Jasper County, Bordering counties
Counties bordering Jasper County
Calculated by Radon411- Radon levels in Newton County, MOEPA zone 2
34.8%at or above 4 pCi/L
Median 2.5 pCi/L · 161 tests · 6.3 points above Jasper County
- Radon levels in Lawrence County, MOEPA zone 2
23.5%at or above 4 pCi/L
Median 1.7 pCi/L · 68 tests · 5.0 points below Jasper County
- Radon levels in Barton County, MOEPA zone 2
12.0%at or above 4 pCi/L
Median 1.3 pCi/L · 25 tests · 16.5 points below Jasper County
- Radon levels in Dade County, MOEPA zone 2
0.0%at or above 4 pCi/L
Median 1.3 pCi/L · 7 tests · 28.5 points below Jasper County
- Radon levels in Cherokee County, KSEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Crawford County, KSEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Jasper County, Cities and towns
Cities and towns in Jasper County
The Census Bureau estimates 127,428 residents in Jasper County for July 1, 2025, 4,543 more than in 2020 (+3.7%). That works out to 200 people per square mile of land. Joplin, the largest place on its list (53,930 residents in all), extends beyond Jasper County, so no share of the total is worked out for it. Reported testing is thin here: 256 tests over 2007 to 2016, or 2.0 for every 1,000 residents (2025 estimate), where Missouri as a whole comes to 8.8.
From Joplin to Waco, CDC publishes no figure by town: each reads Jasper County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Joplinextends beyond Jasper County | 53,930 | +4.2% | Counted whole |
| Carthage | 15,895 | +2.0% | 12.5% |
| Webb City | 13,459 | +2.7% | 10.6% |
| Carl Junction | 8,484 | +3.7% | 6.7% |
| Oronogo | 3,204 | +24.8% | 2.5% |
| Duquesne | 2,345 | +7.7% | 1.8% |
| Duenweg | 2,100 | +39.4% | 1.6% |
| Carterville | 1,869 | +0.6% | 1.5% |
| Sarcoxie | 1,429 | +1.2% | 1.1% |
| Jasper | 870 | −2.9% | 0.7% |
| Airport Drive | 822 | +6.6% | 0.6% |
| Alba | 589 | +9.1% | 0.5% |
- Purcell
- Carytown
- Fidelity
- Neck City
- Asbury
- La Russell
- Avilla
- Brooklyn Heights
- Reeds
- Waco
22 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025). A place that extends beyond Jasper County is counted whole, so it has no share.
Jasper County, Homes
Homes in Jasper County
Jasper County is a place of houses on their own lots: 75% of its 53,749 homes are detached single-family houses, against 70% across Missouri. Half of its homes were built before 1985, close to Missouri's 1978: 25% date from before 1960 and 31% from 2000 or later. 63% of occupied homes are lived in by their owner (Missouri: 68%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Jasper County | Missouri |
|---|---|---|
| Housing units | 53,749 | 2,809,501 |
| Detached houses | 75% | 70% |
| In buildings of 5 or more | 9% | 13% |
| Mobile homes | 6% | 5% |
| Built before 1960 | 25% | 28% |
| Built since 2000 | 31% | 21% |
| Middle year built | 1985 | 1978 |
| Owner-occupied | 63% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.