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
Radon Levels in Greene County, Mississippi
EPA puts Greene 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
Highest bordering
4.4%
Mobile County
- Mobile
- 4.4%
1 of 5 neighbours have 30+ tests, 2006 to 2015
Nearest county
4.4%
Mobile County, 39 miles
- Mobile
- 4.4%
Share at 4+ pCi/L, 45 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
- Greene
- 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 Greene 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
Greene County, At a glance
Greene 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 Greene County. Mobile County, AL, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 4.4% of its tests at or above 4 pCi/L.
Greene County, Compared
Greene County radon figures, compared
Calculated by Radon411No Mississippi county, Greene County included, has a radon test figure from CDC; over the 2006 to 2015 laboratory totals, the agency's counts name 2,669 counties in other states. 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.
Mobile County, AL, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 4.4% of its tests at or above 4 pCi/L. Farther out, Escambia County, FL (85 miles away) at 0.0%, Santa Rosa County, FL (102 miles away) at 3.3% and Tangipahoa Parish, LA (112 miles away) at 0.0% have figures too.
EPA's 1993 map puts Greene 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.
Greene County, Geology
The ground under Greene County
PredictedUSGS's geologic map puts all of Greene County's mapped land in one class: low radon potential. All of it lies in the area the map calls Pine Hills, to which USGS gives a radon index of 6, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Pine Hills | Sand, sandstone, bentonitic clay, quartzite, gravel, tuff, and siltstone. | Low | 6 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Greene County beside the ground around it
Across Mississippi 0.1% of the land is rated high; none of Greene 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
Greene County, Local resources
Radon testing and mitigation in Greene 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
Greene County, Questions
Questions about radon in Greene County
Are radon levels high in Greene County?
No CDC testing statistics are published here for Greene County, Mississippi yet. Mobile County, AL, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 4.4% of its tests at or above 4 pCi/L.
Which counties border Greene County?
Greene County borders 5 counties: Wayne County, MS, Perry County, MS, Washington County, AL, George County, MS and Mobile County, AL.
Products
Greene County, Products
Testing a home in Greene County
No CDC figure names Greene County; the nearest county with one, Mobile County, AL (39 miles away), reported 4.4% 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 Greene 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
Corentium Home 2 battery digital radon monitor
- C-NRPP 2024/25: Not included
- Battery
- 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
Greene County, Bordering counties
Counties bordering Greene County
Calculated by Radon411- Radon levels in Mobile County, ALEPA zone 3
4.4%at or above 4 pCi/L
Median 0.2 pCi/L · 45 tests
- Radon levels in Washington County, ALEPA zone 3
0.0%at or above 4 pCi/L
Median 1.6 pCi/L · 3 tests
- Radon levels in Wayne County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Perry County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in George County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Greene County, Cities and towns
Cities and towns in Greene County
The Census Bureau estimates 13,707 residents in Greene County for July 1, 2025, 176 more than in 2020 (+1.3%). That works out to 19 people per square mile of land. Its largest town, Leakesville, has 3,732 residents, 27.2% of the total.
From Leakesville to McLain, CDC publishes no figure by town: each reads Greene County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Leakesville | 3,732 | −1.4% | 27.2% |
| State Lineextends beyond Greene County | 469 | +3.8% | Counted whole |
| McLain | 315 | +0.3% | 2.3% |
3 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 Greene County is counted whole, so it has no share.
Greene County, Homes
Homes in Greene County
Of Greene County's 5,137 homes, 61% are detached houses, against 69% across Mississippi; 36% are mobile homes. Half of its homes were built before 1984, close to Mississippi's 1986: 12% date from before 1960 and 24% from 2000 or later. Owners live in 78% of the occupied homes (Mississippi: 69%), so for most households a test and a fix are their own to order.
| Homes | Greene County | Mississippi |
|---|---|---|
| Housing units | 5,137 | 1,332,811 |
| Detached houses | 61% | 69% |
| In buildings of 5 or more | 3% | 9% |
| Mobile homes | 36% | 15% |
| Built before 1960 | 12% | 15% |
| Built since 2000 | 24% | 28% |
| Middle year built | 1984 | 1986 |
| Owner-occupied | 78% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.