
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
EPA puts Bates County in Zone 2, its middle radon zone, and only 2 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
Highest bordering
45.5%
Cass County
3 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
45.5%
Cass County, 27 miles
Share at 4+ pCi/L, 988 tests, 2008 to 2017
Ground above low
100.0%
5.8 pts above Missouri
Share of land USGS rates moderate or high potential
Tests reported
24
Too few for a share
2005 to 2014, laboratory
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Bates County
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
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
Bates County, At a glance
Predicted: EPA radon zone
Bates 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
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2016 | 0.0% |
| 2018 | 0.0% |
| 2019 | 0.0% |
| 2021 | 0.0% |
| 2022 | 0.0% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
Only 2 tests were reported to CDC for Bates 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).
Bates County, Compared
CDC's largest figure for Bates County rests on 24 tests over the 2005 to 2014 laboratory totals, 10 of them at or above 4 pCi/L, so each test moves its share by 4.2 points and no rank or comparison is drawn from it. Results reached as high as 7.3 pCi/L, with a middle value of 3.3 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Cass County reported the largest share at or above 4 pCi/L, 45.5%, and Vernon County the smallest, 8.8%, with Henry County at 38.3% between. Farther out, Johnson County (44 miles away) at 25.8%, Jackson County (52 miles away) at 41.3% and Benton County (57 miles away) at 30.6% have figures too. Pooled across 115 Missouri counties, 30.6% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Atchison County reported the highest share (69.9%) and Vernon County the lowest (8.8%). EPA's 1993 map puts Bates County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Bates County, Geology
Most of the ground under Bates County is one class on USGS's geologic map: 99.7% of its land is moderate radon potential, with 0.3% high. All of it lies in the area the map calls Osage Plains, to which USGS gives 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 |
|---|---|---|---|---|
| Osage Plains | Ordovician dolomite, sandstone, limestone, and shale. | Moderate | 11 | 99.6% |
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 Bates County is close to Missouri as a whole: 0.3% of its land against 8.2%. Of the 6 counties that border it, 2 have more high-potential ground, Cass County the most at 35.5%.
The map rates the ground, not the air in any home.
Local help
Bates County, Local resources
Free radon test kits are available for Missouri residents (limit one per household).
What it means
Bates County, Questions
In 2023, 0.0% of the radon tests reported to CDC for Bates County, Missouri were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.8 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Cass County reported the largest share at or above 4 pCi/L, 45.5%, and Vernon County the smallest, 8.8%, with Henry County at 38.3% between.
Bates County borders 6 counties: Cass County, MO, Linn County, KS, Henry County, MO, Vernon County, MO, Miami County, KS and St. Clair County, MO.
Products
Bates County, Products
No CDC figure names Bates County; the nearest county with one, Cass County (27 miles away), reported 45.5% of its tests at or above 4 pCi/L over the 2008 to 2017 laboratory totals, the only reading nearby until a test of this home. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Bates County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Bates County, Bordering counties
45.5%at or above 4 pCi/L
Median 3.5 pCi/L · 988 tests
38.3%at or above 4 pCi/L
Median 3.4 pCi/L · 81 tests
8.8%at or above 4 pCi/L
Median 0.9 pCi/L · 34 tests
7.7%at or above 4 pCi/L
Median 1.5 pCi/L · 13 tests
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Bates County, Cities and towns
The Census Bureau estimates 16,512 residents in Bates County for July 1, 2025, 460 more than in 2020 (+2.9%). That works out to 20 people per square mile of land. Its largest town, Butler, has 4,317 residents, 26.1% of the total. Reported testing is thin here: 24 tests over 2005 to 2014, or 1.5 for every 1,000 residents (2025 estimate), where Missouri as a whole comes to 6.8.
From Butler to Passaic, CDC publishes no figure by town: each reads Bates County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Butler | 4,317 | +2.2% | 26.1% |
| Adrian | 1,798 | +4.1% | 10.9% |
| Rich Hill | 1,264 | +2.9% | 7.7% |
| Drexelextends beyond Bates County | 982 | +1.6% | Counted whole |
| Hume | 290 | +2.8% | 1.8% |
| Amsterdam | 225 | +2.7% | 1.4% |
| Rockville | 141 | +2.9% | 0.9% |
| Amoret | 134 | +3.1% | 0.8% |
| Foster | 80 | +2.6% | 0.5% |
| Merwin | 70 | +2.9% | 0.4% |
| Passaic | 29 | +11.5% | 0.2% |
11 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 Bates County is counted whole, so it has no share.
Bates County, Homes
Bates County is a place of houses on their own lots: 77% of its 7,192 homes are detached single-family houses, against 70% across Missouri. Half of its homes were built before 1977, close to Missouri's 1978: 31% date from before 1960 and 16% from 2000 or later. 72% 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 | Bates County | Missouri |
|---|---|---|
| Housing units | 7,192 | 2,809,501 |
| Detached houses | 77% | 70% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 13% | 5% |
| Built before 1960 | 31% | 28% |
| Built since 2000 | 16% | 21% |
| Middle year built | 1977 | 1978 |
| Owner-occupied | 72% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.