Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Chautauqua County, Kansas
EPA puts Chautauqua County in Zone 2, its middle radon zone, and only 6 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
41.6%
Cowley County
- Cowley
- 41.6%
1 of 5 neighbours have 30+ tests, 2019
Nearest county
41.6%
Cowley County, 33 miles
- Cowley
- 41.6%
- Kansas
- 33.7%
Share at 4+ pCi/L, 101 tests, 2019
Ground above low
99.5%
0.5 pts below Kansas
- Chautauqua
- 99.5%
- Kansas
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
7
Too few for a share
- Chautauqua
- 7
- Needed
- 30
2019
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Chautauqua 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
Chautauqua County, At a glance
Chautauqua County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Chautauqua County is a
USGS geologic potential: Moderate across 99% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Chautauqua County, 2021
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2017 | 0.0% |
| 2018 | 100.0% |
| 2019 | 14.3% |
| 2020 | 33.3% |
| 2021 | 50.0% |
2021: 50.0%. Across these years the share ran from 0.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 6 tests were reported to CDC for Chautauqua 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: 2017 to 2021 (every CDC figure on file).
Chautauqua County, Compared
Chautauqua County radon figures, compared
Calculated by Radon411CDC's largest figure for Chautauqua County rests on 7 tests in 2019, 1 of them at or above 4 pCi/L, so each test moves its share by 14.3 points and no rank or comparison is drawn from it. Results reached as high as 4.0 pCi/L, with a middle value of 1.7 pCi/L.
Cowley County, the one bordering county with a figure in 2019, reported 41.6% of its tests at or above 4 pCi/L. Farther out, Butler County (54 miles away) at 27.8%, Sumner County (68 miles away) at 32.8% and Sedgwick County (76 miles away) at 24.0% 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 Chautauqua County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 99% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Chautauqua County, Geology
The ground under Chautauqua County
PredictedMost of the ground under Chautauqua County is one class on USGS's geologic map: 99.5% of its land is moderate radon potential, with 0.5% low. 99.5% 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 | 99.5% |
| Central Oklahoma Plains and Hills | Nonmarine Permian and Tertiary rocks, including shale, sandstone, and conglomerate in the western part, and Mississippian and Pennsylvanian rocks in the eastern part. | Low | 7 | 0.5% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Chautauqua County beside the ground around it
Across Kansas 59.9% of the land is rated high; none of Chautauqua County's is. Of the 5 counties that border it, 3 have more moderate-potential ground, Elk County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Chautauqua County, Local resources
Radon testing and mitigation in Chautauqua 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
Chautauqua County, Questions
Questions about radon in Chautauqua County
Are radon levels high in Chautauqua County?
In 2021, 50.0% of the radon tests reported to CDC for Chautauqua County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.0 pCi/L. Cowley County, the one bordering county with a figure in 2019, reported 41.6% of its tests at or above 4 pCi/L.
Which counties border Chautauqua County?
Chautauqua County borders 5 counties: Elk County, KS, Montgomery County, KS, Washington County, OK, Cowley County, KS and Osage County, OK.
Products
Chautauqua County, Products
Testing a home in Chautauqua County
No CDC figure names Chautauqua County; the nearest county with one, Cowley County (33 miles away), reported 41.6% of its tests at or above 4 pCi/L in 2019, 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 Chautauqua County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
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
MonitorAranet
Radon Plus battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Approved
- Battery
- Bluetooth
- Alarm
- Screen, app
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
Chautauqua County, Bordering counties
Counties bordering Chautauqua County
Calculated by Radon411- Radon levels in Elk County, KSEPA zone 2
50.0%at or above 4 pCi/L
Median 7.2 pCi/L · 2 tests
- Radon levels in Cowley County, KSEPA zone 2
41.6%at or above 4 pCi/L
Median 3.2 pCi/L · 101 tests
- Radon levels in Montgomery County, KSEPA zone 2
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 8 tests
- Radon levels in Washington County, OKEPA zone 3
No CDC figure for 2019; its page reads it against its own neighbours.
- Radon levels in Osage County, OKEPA zone 3
No CDC figure for 2019; its page reads it against its own neighbours.
Chautauqua County, Cities and towns
Cities and towns in Chautauqua County
About 3,321 people live in Chautauqua County by the Census Bureau's estimate for July 1, 2025, 64 fewer than in 2020 (−1.9%). Spread over its land, that is 5.2 people to the square mile. Its largest town, Sedan, has 976 residents, 29.4% of the total. Together its 6 incorporated places hold 54.0% of those residents; the other 46.0% live outside any of them. Reported testing is thin here: 7 tests over 2019, or 2.1 for every 1,000 residents (2025 estimate), where Kansas as a whole comes to 8.1.
From Sedan to Elgin, CDC publishes no figure by town: each reads Chautauqua County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Sedan | 976 | −2.3% | 29.4% |
| Cedar Vale | 466 | −2.5% | 14.0% |
| Chautauqua | 109 | −1.8% | 3.3% |
| Peru | 101 | −1.0% | 3.0% |
| Niotaze | 84 | −2.3% | 2.5% |
| Elgin | 57 | −1.7% | 1.7% |
6 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).
Chautauqua County, Homes
Homes in Chautauqua County
Chautauqua County is a place of houses on their own lots: 82% of its 1,971 homes are detached single-family houses, against 72% across Kansas. The homes are older than Kansas' as a whole: half were built before 1960 (1975 for Kansas), and 50% date from before 1960. Owners live in 83% of the occupied homes (Kansas: 67%), so for most households a test and a fix are their own to order.
| Homes | Chautauqua County | Kansas |
|---|---|---|
| Housing units | 1,971 | 1,285,221 |
| Detached houses | 82% | 72% |
| In buildings of 5 or more | 1% | 13% |
| Mobile homes | 15% | 4% |
| Built before 1960 | 50% | 33% |
| Built since 2000 | 12% | 20% |
| Middle year built | 1960 | 1975 |
| Owner-occupied | 83% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.