
Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
EPA puts Morris County in Zone 2, its middle radon zone, and only 23 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
20.0%
11.8 pts below KS
45 tests, 2021
Median result
1.7pCi/L
Below action level
Midpoint of the tests, 2021
Tests reported
45
53rd of 62 by tests
Reported to CDC before any fix, 2021
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Kansas
55 of 62
Lowest quarter
By share, of 62 with 30+ tests
Read a result for Morris County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.7 pCi/L
Below 2 pCi/L
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Morris County's median reported result, 2021.
The data
Morris County, At a glance
Predicted: EPA radon zone
Morris County is a
USGS geologic potential: Moderate across 80% 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 |
|---|---|
| 2016 | 42.9% |
| 2017 | 23.5% |
| 2018 | 46.2% |
| 2019 | 42.9% |
| 2020 | 53.3% |
| 2021 | 20.0% |
| 2022 | 43.5% |
2022: 43.5%. Across these years the share ran from 20.0% to 53.3%. Each column counts radon tests reported to CDC that year, not homes.
Only 23 tests were reported to CDC for Morris 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).
Morris County, Compared
Morris County's 45 reported tests in 2021 had a middle value of 1.7 pCi/L and a maximum of 10.4 pCi/L, and 20.0% reached 4 pCi/L. Kansas as a whole (96 Kansas counties, pooled) comes to 31.8%: 11.8 points higher than here.
The newest figure, in 2022, counts only 23 tests (43.5% at or above 4 pCi/L), too few to compare, so this reading uses the 45-test figure.
Among its state's counties it ranks 55th of 62 Kansas counties with 30 or more tests for the same period. Statewide for the same period, Norton County reported the highest share (93.8%) and Doniphan County the lowest (0.0%).
Below the action level, 27 tests (60.0%) came in under 2 pCi/L, against 45.3% statewide, and 9 tests (20.0%) fell between 2 and 4, against 22.9% statewide. The busiest year on file was 2021, with 45 tests reported; the quietest, 2016, had 7.
EPA's 1993 zone map puts Morris County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 80% of the county's land moderate radon potential.
Next door, the shares run from 29.6% in Geary County to 41.2% in Wabaunsee County.
CDC also counts 33 tests taken after mitigation in Morris County for the same period: tests in homes where a fix was already in.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Morris County, Geology
Most of the ground under Morris County is one class on USGS's geologic map: 80.0% of its land is moderate radon potential, with 20.0% high. The map puts 80.0% of Morris County in the area it calls Glaciated Area and 20.0% in Mid-Continent Rift Zone. 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 | 80.0% |
| Mid-Continent Rift Zone | Faulted and fractured Permian limestone, dolomite, shale, and sandstone related to the Mid-Continent Rift zone. | High | 12 | 20.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Kansas as a whole has more high-potential ground than Morris County: 59.9% of its land, against 20.0% here. Of the 6 counties that border it, 3 have more high-potential ground, Dickinson County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Morris County, Local resources
What it means
Morris County, Questions
In 2022, 43.5% of the radon tests reported to CDC for Morris County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.5 pCi/L. Of 62 Kansas counties with 30 or more tests for the same period, 54 reported a higher share; pooled, the state comes to 31.8%.
Morris County borders 6 counties: Geary County, Chase County, Lyon County, Wabaunsee County, Dickinson County and Marion County.
Products
Morris County, Products
In Morris County, 20.0% of 45 tests reported to CDC in 2021 reached 4 pCi/L, against 31.8% pooled across Kansas. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Morris County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
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Morris County, Bordering counties
41.2%at or above 4 pCi/L
Median 3.3 pCi/L · 102 tests · 21.2 points above Morris County
37.8%at or above 4 pCi/L
Median 2.0 pCi/L · 111 tests · 17.8 points above Morris County
37.3%at or above 4 pCi/L
Median 2.5 pCi/L · 330 tests · 17.3 points above Morris County
30.3%at or above 4 pCi/L
Median 2.3 pCi/L · 99 tests · 10.3 points above Morris County
29.6%at or above 4 pCi/L
Median 2.2 pCi/L · 1,134 tests · 9.6 points above Morris County
No CDC figure for 2021; its page reads it against its own neighbours.
Morris County, Cities and towns
Morris County's population has barely moved since 2020: 5,348 residents on July 1, 2025 against 5,363 then, by the Census Bureau's estimates. Spread over its land, that is 7.7 people to the square mile. Its largest town, Council Grove, has 2,130 residents, 39.8% of the total. Reported testing is thin here: 45 tests over 2021, or 8.4 for every 1,000 residents (2025 estimate), where Kansas as a whole comes to 23.5.
From Council Grove to Dunlap, CDC publishes no figure by town: each reads Morris County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Council Grove | 2,130 | Level | 39.8% |
| Heringtonextends beyond Morris County | 2,101 | −0.4% | Counted whole |
| White City | 442 | −1.1% | 8.3% |
| Dwight | 211 | −1.4% | 3.9% |
| Wilsey | 141 | +2.2% | 2.6% |
| Parkerville | 48 | Level | 0.9% |
| Latimer | 32 | Level | 0.6% |
| Dunlap | 28 | Level | 0.5% |
8 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 Morris County is counted whole, so it has no share.
Morris County, Homes
Morris County is a place of houses on their own lots: 82% of its 2,991 homes are detached single-family houses, against 72% across Kansas. The homes are older than Kansas' as a whole: half were built before 1955 (1975 for Kansas), and 55% date from before 1960. Owners live in 79% of the occupied homes (Kansas: 67%), so for most households a test and a fix are their own to order.
| Homes | Morris County | Kansas |
|---|---|---|
| Housing units | 2,991 | 1,285,221 |
| Detached houses | 82% | 72% |
| In buildings of 5 or more | 4% | 13% |
| Mobile homes | 11% | 4% |
| Built before 1960 | 55% | 33% |
| Built since 2000 | 13% | 20% |
| Middle year built | 1955 | 1975 |
| Owner-occupied | 79% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.