Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Winston County, Mississippi
EPA puts Winston 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
10.1%
Tuscaloosa County, 89 miles
- Tuscaloosa
- 10.1%
Share at 4+ pCi/L, 69 tests, 2006 to 2015
Ground above low
0.1%
8.0 pts below MS
- Winston
- 0.1%
- 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 Winston 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
Winston County, At a glance
Winston 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 Winston County. Tuscaloosa County, AL, 89 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Winston County, Compared
Winston County radon figures, compared
Calculated by Radon411Winston 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 Tuscaloosa County, AL (89 miles away) at 10.1%, Franklin County, AL (116 miles away) at 18.6% and Jefferson County, AL (128 miles away) at 10.6%.
EPA's 1993 map puts Winston 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.
Winston County, Geology
The ground under Winston County
PredictedMost of the ground under Winston County is one class on USGS's geologic map: 99.9% of its land is low radon potential, with 0.1% moderate. All of it lies in the area the map calls North Central Hills/Flatwoods, 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 |
|---|---|---|---|---|
| North Central Hills/Flatwoods | Tertiary nonmarine to deltaic sediments ranging from sand to clay. | Low | 8 | 99.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Winston County beside the ground around it
Across Mississippi 0.1% of the land is rated high; none of Winston County's is. Of the 7 counties that border it, 3 have more moderate-potential ground, Noxubee County the most at 78.6%.
The map rates the ground, not the air in any home.
Local help
Winston County, Local resources
Radon testing and mitigation in Winston 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
Winston County, Questions
Questions about radon in Winston County
Are radon levels high in Winston County?
No CDC testing statistics are published here for Winston County, Mississippi yet. Of the 8 nearest counties with a figure, within 144 miles, the share of tests at or above 4 pCi/L runs from 6.3% to 36.6%.
Which counties border Winston County?
Winston County borders 7 counties: Neshoba County, Choctaw County, Kemper County, Oktibbeha County, Attala County, Noxubee County and Leake County.
Products
Winston County, Products
Testing a home in Winston County
No CDC figure names Winston County; the nearest county with one, Tuscaloosa County, AL (89 miles away), reported 10.1% 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 Winston 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
RadonPro Wi-Fi radon monitor with a built-in Geiger counter
- C-NRPP 2024/25: Not included
- Plug-in
- Wi-Fi
- Alarm
- Screen, app
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Winston County, Bordering counties
Counties bordering Winston County
Calculated by Radon411counties bordering Winston County: 1 of 7
Winston County, Cities and towns
Cities and towns in Winston County
About 17,473 people live in Winston County by the Census Bureau's estimate for July 1, 2025, 216 fewer than in 2020 (−1.2%). That works out to 29 people per square mile of land. Its largest town, Louisville, has 5,921 residents, 33.9% of the total. Together its 2 incorporated places hold 36.1% of those residents; the other 63.9% live outside any of them.
From Louisville to Noxapater, CDC publishes no figure by town: each reads Winston County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Louisville | 5,921 | −2.4% | 33.9% |
| Noxapater | 383 | −1.0% | 2.2% |
2 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).
Winston County, Homes
Homes in Winston County
Of Winston County's 8,231 homes, 74% are detached houses, against 69% across Mississippi; 16% are mobile homes. Half of its homes were built before 1979, close to Mississippi's 1986: 14% date from before 1960 and 22% from 2000 or later. 70% 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 | Winston County | Mississippi |
|---|---|---|
| Housing units | 8,231 | 1,332,811 |
| Detached houses | 74% | 69% |
| In buildings of 5 or more | 4% | 9% |
| Mobile homes | 16% | 15% |
| Built before 1960 | 14% | 15% |
| Built since 2000 | 22% | 28% |
| Middle year built | 1979 | 1986 |
| Owner-occupied | 70% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.