Short-term kit
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Leflore County, Mississippi
EPA puts Leflore 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, 115 miles
- Shelby
- 7.0%
Share at 4+ pCi/L, 341 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
- Leflore
- 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 Leflore 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
Leflore County, At a glance
Leflore 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 Leflore County. Shelby County, TN, 115 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Leflore County, Compared
Leflore County radon figures, compared
Calculated by Radon411Leflore 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 (115 miles away) at 7.0%, Fayette County, TN (124 miles away) at 13.1% and Tipton County, TN (138 miles away) at 5.6%.
EPA's 1993 map puts Leflore 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.
Leflore County, Geology
The ground under Leflore County
PredictedUSGS's geologic map puts all of Leflore County's mapped land in one class: low radon potential. 98.8% 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 | 98.8% |
| Loess Hills | Loess. | Low | 7 | 1.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Leflore County beside the ground around it
Across Mississippi 0.1% of the land is rated high; none of Leflore County's is. None of the 6 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Leflore County, Local resources
Radon testing and mitigation in Leflore 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
Leflore County, Questions
Questions about radon in Leflore County
Are radon levels high in Leflore County?
No CDC testing statistics are published here for Leflore County, Mississippi yet. Of the 8 nearest counties with a figure, within 161 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 31.9%.
Which counties border Leflore County?
Leflore County borders 6 counties: Sunflower County, Carroll County, Tallahatchie County, Grenada County, Holmes County and Humphreys County.
Products
Leflore County, Products
Testing a home in Leflore County
No CDC figure names Leflore County; the nearest county with one, Shelby County, TN (115 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 Leflore County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorForensics Detectors
FD-65-RADON rechargeable radon detector with a color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Leflore County, Bordering counties
Counties bordering Leflore County
Calculated by Radon411counties bordering Leflore County: 1 of 6
Leflore County, Cities and towns
Cities and towns in Leflore County
Leflore County has been losing residents: from 28,344 in 2020 to 25,686 on July 1, 2025, a fall of 9.4% by the Census Bureau's estimates. That works out to 43 people per square mile of land. Greenwood alone is home to 13,429 of them, 52.3% of the total. Together its 5 incorporated places hold 60.7% of those residents; the other 39.3% live outside any of them.
From Greenwood to Morgan City, CDC publishes no figure by town: each reads Leflore County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Greenwood | 13,429 | −8.3% | 52.3% |
| Itta Bena | 1,482 | −11.3% | 5.8% |
| Sidon | 285 | −8.9% | 1.1% |
| Schlater | 217 | −8.1% | 0.8% |
| Morgan City | 187 | −9.7% | 0.7% |
5 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).
Leflore County, Homes
Homes in Leflore County
Of Leflore County's 12,643 homes, 70% are detached houses, against 69% across Mississippi; 8% are in buildings of five or more homes. The homes are older than Mississippi's as a whole: half were built before 1975 (1986 for Mississippi), and 26% date from before 1960. 54% 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 | Leflore County | Mississippi |
|---|---|---|
| Housing units | 12,643 | 1,332,811 |
| Detached houses | 70% | 69% |
| In buildings of 5 or more | 8% | 9% |
| Mobile homes | 6% | 15% |
| Built before 1960 | 26% | 15% |
| Built since 2000 | 13% | 28% |
| Middle year built | 1975 | 1986 |
| Owner-occupied | 54% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.