Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Coahoma County, Mississippi
EPA puts Coahoma County in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
7.0%
Shelby County, 77 miles
- Shelby
- 7.0%
Share at 4+ pCi/L, 341 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
- Coahoma
- 0.0%
- MS
- 8.1%
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
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 Coahoma 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
Coahoma County, At a glance
Coahoma 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
No CDC test figures here
CDC has published no radon test figures for Coahoma County. Shelby County, TN, 77 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Coahoma County, Compared
Coahoma County radon figures, compared
Calculated by Radon411Coahoma County is in a state CDC's county radon counts do not reach: no Mississippi county has a figure, while 2,669 counties elsewhere do over the 2006 to 2015 laboratory totals. Across every county in the country with a figure (2,669), 36.3% of reported tests reached that level; no Mississippi county contributes to that pool.
The nearest counties with a figure are Shelby County, TN (77 miles away) at 7.0%, Fayette County, TN (95 miles away) at 13.1% and Tipton County, TN (100 miles away) at 5.6%.
EPA's 1993 map puts Coahoma 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.
Coahoma County, Geology
The ground under Coahoma County
PredictedUSGS's geologic map puts all of Coahoma County's mapped land in one class: low radon potential. All of it lies in the area the map calls Mississippi Alluvial Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Mississippi Alluvial Plain | Alluvial sand, silt, gravel, and clay. | Low | 8 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Coahoma County beside the ground around it
Across Mississippi 0.1% of the land is rated high; none of Coahoma County's is. Of the 6 counties that border it, 1 has more moderate-potential ground, Phillips County, AR the most at 3.2%.
The map rates the ground, not the air in any home.
Local help
Coahoma County, Local resources
Radon testing and mitigation in Coahoma County
- Mississippi Radon ProgramMississippi Radon Program, run by Mississippi State Department of Health, answers questions about testing, mitigation and the rules in Mississippi.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
- See the Mississippi directoryNo professionals are listed in Mississippi yet. The state program can point you to registered testers and mitigators.
What Mississippi's program says
- Phone
- 1-800-626-7739
What it means
Coahoma County, Questions
Questions about radon in Coahoma County
Are radon levels high in Coahoma County?
No CDC testing statistics are published here for Coahoma County, Mississippi yet. Of the 8 nearest counties with a figure, within 140 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 31.9%.
Which counties border Coahoma County?
Coahoma County borders 6 counties: Phillips County, AR, Quitman County, MS, Bolivar County, MS, Tunica County, MS, Tallahatchie County, MS and Sunflower County, MS.
Products
Coahoma County, Products
Testing a home in Coahoma County
No CDC figure names Coahoma County; the nearest county with one, Shelby County, TN (77 miles away), reported 7.0% of its tests at or above 4 pCi/L over the 2006 to 2015 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 Coahoma 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
Monitor
View Radon Wi-Fi radon monitor with an e-paper display
- C-NRPP 2024/25: Approved
- Battery
- Wi-Fi, Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Coahoma County, Bordering counties
Counties bordering Coahoma County
Calculated by Radon411- Radon levels in Phillips County, AREPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
- Radon levels in Quitman County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Bolivar County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Tunica County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Tallahatchie County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Sunflower County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Coahoma County, Cities and towns
Cities and towns in Coahoma County
Coahoma County has been losing residents: from 21,228 in 2020 to 19,849 on July 1, 2025, a fall of 6.5% by the Census Bureau's estimates. That works out to 36 people per square mile of land. Clarksdale alone is home to 13,643 of them, 68.7% of the total. Together its 6 incorporated places hold 80.8% of those residents; the other 19.2% live outside any of them.
From Clarksdale to Lula, CDC publishes no figure by town: each reads Coahoma County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Clarksdale | 13,643 | −7.6% | 68.7% |
| Jonestown | 899 | −6.4% | 4.5% |
| Friars Point | 830 | −7.0% | 4.2% |
| Lyon | 267 | −8.2% | 1.3% |
| Coahoma | 213 | −7.0% | 1.1% |
| Lula | 189 | −6.9% | 1.0% |
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).
Coahoma County, Homes
Homes in Coahoma County
Of Coahoma County's 10,188 homes, 70% are detached houses, against 69% across Mississippi; 10% are in buildings of five or more homes. The homes are older than Mississippi's as a whole: half were built before 1971 (1986 for Mississippi), and 37% date from before 1960. 52% of occupied homes are lived in by their owner (Mississippi: 69%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Coahoma County | Mississippi |
|---|---|---|
| Housing units | 10,188 | 1,332,811 |
| Detached houses | 70% | 69% |
| In buildings of 5 or more | 10% | 9% |
| Mobile homes | 7% | 15% |
| Built before 1960 | 37% | 15% |
| Built since 2000 | 12% | 28% |
| Middle year built | 1971 | 1986 |
| Owner-occupied | 52% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.