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 Pemiscot County, Missouri
EPA puts Pemiscot County in Zone 3, its lowest radon zone, and only 1 radon test from it is on file with CDC (2019). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
21.2%
Butler County, 49 miles
- Butler
- 21.2%
- Missouri
- 30.6%
Share at 4+ pCi/L, 33 tests, 2008 to 2017
Ground above low
None
94.2 pts below Missouri
- Pemiscot
- 0.0%
- Missouri
- 94.2%
Share of land USGS rates moderate or high potential
Tests reported
5
Too few for a share
- Pemiscot
- 5
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Pemiscot 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
Pemiscot County, At a glance
Pemiscot County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Pemiscot County, 2019
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2015 | 0.0% |
| 2016 | 0.0% |
| 2019 | 0.0% |
2019: 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.
What these figures count
Only 1 test was reported to CDC for Pemiscot County over 2019, 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: 2019. Measured data period: 2005 to 2019 (every CDC figure on file).
Pemiscot County, Compared
Pemiscot County radon figures, compared
Calculated by Radon411CDC's largest figure for Pemiscot County rests on 5 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 20.0 points and no rank or comparison is drawn from it. Results reached as high as 2.8 pCi/L, with a middle value of 0.8 pCi/L.
The nearest counties with a figure are Butler County (49 miles away) at 21.2%, Scott County (59 miles away) at 29.4% and Cape Girardeau County (81 miles away) at 35.2%. 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 Pemiscot County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Pemiscot County, Geology
The ground under Pemiscot County
PredictedUSGS's geologic map puts all of Pemiscot County's mapped land in one class: low radon potential. 98.6% of it lies in the area the map calls Coastal Plains Province, to which USGS gives a radon index of 5, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coastal Plains Province | Tertiary-Quaternary sandstone, shale, and alluvium. | Low | 5 | 98.6% |
| Mississippi Alluvial Plain | Alluvial sand, silt, gravel, and clay. | Low | 7 | 1.1% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Pemiscot County beside the ground around it
Across Missouri 8.2% of the land is rated high; none of Pemiscot County's is. None of the 5 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Pemiscot County, Local resources
Radon testing and mitigation in Pemiscot 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.
What Missouri's program says
- Phone
- 573-751-6102
- radon@health.mo.gov
What it means
Pemiscot County, Questions
Questions about radon in Pemiscot County
Are radon levels high in Pemiscot County?
In 2019, 0.0% of the radon tests reported to CDC for Pemiscot County, Missouri were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. Of the 8 nearest counties with a figure, within 135 miles, the share of tests at or above 4 pCi/L runs from 21.2% to 45.7%.
Which counties border Pemiscot County?
Pemiscot County borders 5 counties: Dunklin County, MO, Lake County, TN, Dyer County, TN, New Madrid County, MO and Mississippi County, AR.
Products
Pemiscot County, Products
Testing a home in Pemiscot County
No CDC figure names Pemiscot County; the nearest county with one, Butler County (49 miles away), reported 21.2% 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. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Pemiscot County.
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
MonitorX-Sense
XR0A-SR battery digital radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Pemiscot County, Bordering counties
Counties bordering Pemiscot County
Calculated by Radon411- Radon levels in Mississippi County, AREPA zone 3
75.0%at or above 4 pCi/L
Median 9.8 pCi/L · 4 tests
- Radon levels in New Madrid County, MOEPA zone 3
11.1%at or above 4 pCi/L
Median 1.4 pCi/L · 9 tests
- Radon levels in Dunklin County, MOEPA zone 3
6.3%at or above 4 pCi/L
Median 1.3 pCi/L · 16 tests
- Radon levels in Lake County, TNEPA zone 3
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 7 tests
- Radon levels in Dyer County, TNEPA zone 3
0.0%at or above 4 pCi/L
Median 1.4 pCi/L · 22 tests
Pemiscot County, Cities and towns
Cities and towns in Pemiscot County
Pemiscot County has been losing residents: from 15,583 in 2020 to 14,465 on July 1, 2025, a fall of 7.2% by the Census Bureau's estimates. That works out to 29 people per square mile of land. Its largest town, Caruthersville, has 5,211 residents, 36.0% of the total. Reported testing is thin here: 5 tests over 2008 to 2017, or 0.3 for every 1,000 residents (2025 estimate), where Missouri as a whole comes to 9.3.
From Caruthersville to Bragg City, CDC publishes no figure by town: each reads Pemiscot County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Caruthersville | 5,211 | −5.9% | 36.0% |
| Portagevilleextends beyond Pemiscot County | 2,702 | −7.6% | Counted whole |
| Hayti | 2,277 | −8.2% | 15.7% |
| Steele | 1,692 | −8.1% | 11.7% |
| Hayti Heights | 466 | −7.7% | 3.2% |
| Cooter | 319 | −7.3% | 2.2% |
| Wardell | 283 | −7.8% | 2.0% |
| Holland | 181 | −6.7% | 1.3% |
| Pascola | 82 | −6.8% | 0.6% |
| Homestown | 67 | −8.2% | 0.5% |
| Bragg City | 63 | −8.7% | 0.4% |
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 Pemiscot County is counted whole, so it has no share.
Pemiscot County, Homes
Homes in Pemiscot County
Of Pemiscot County's 7,509 homes, 75% are detached houses, against 70% across Missouri; 9% are mobile homes. Half of its homes were built before 1971, close to Missouri's 1978: 34% date from before 1960 and 12% from 2000 or later. 58% 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 | Pemiscot County | Missouri |
|---|---|---|
| Housing units | 7,509 | 2,809,501 |
| Detached houses | 75% | 70% |
| In buildings of 5 or more | 4% | 13% |
| Mobile homes | 9% | 5% |
| Built before 1960 | 34% | 28% |
| Built since 2000 | 12% | 21% |
| Middle year built | 1971 | 1978 |
| Owner-occupied | 58% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.