Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in Montgomery County, Mississippi
EPA puts Montgomery 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, 118 miles
- Shelby
- 7.0%
Share at 4+ pCi/L, 341 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
- Montgomery
- 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 Montgomery 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
Montgomery County, At a glance
Montgomery 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 Montgomery County. Shelby County, TN, 118 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Montgomery County, Compared
Montgomery County radon figures, compared
Calculated by Radon411Montgomery 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 (118 miles away) at 7.0%, Fayette County, TN (118 miles away) at 13.1% and Franklin County, AL (121 miles away) at 18.6%.
EPA's 1993 map puts Montgomery 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.
Montgomery County, Geology
The ground under Montgomery County
PredictedUSGS's geologic map puts all of Montgomery County's mapped land in one class: low radon potential. 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 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Montgomery County beside the ground around it
Across Mississippi 0.1% of the land is rated high; none of Montgomery 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
Montgomery County, Local resources
Radon testing and mitigation in Montgomery 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
Montgomery County, Questions
Questions about radon in Montgomery County
Are radon levels high in Montgomery County?
No CDC testing statistics are published here for Montgomery County, Mississippi yet. Of the 8 nearest counties with a figure, within 145 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 36.6%.
Which counties border Montgomery County?
Montgomery County borders 5 counties: Grenada County, Carroll County, Webster County, Choctaw County and Attala County.
Products
Montgomery County, Products
Testing a home in Montgomery County
No CDC figure names Montgomery County; the nearest county with one, Shelby County, TN (118 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 Montgomery 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
Monitor
EcoQube Flex battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 15 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Montgomery County, Bordering counties
Counties bordering Montgomery County
Calculated by Radon411counties bordering Montgomery County: 1 of 5
Montgomery County, Cities and towns
Cities and towns in Montgomery County
About 9,354 people live in Montgomery County by the Census Bureau's estimate for July 1, 2025, 440 fewer than in 2020 (−4.5%). That works out to 23 people per square mile of land. Its largest town, Winona, has 3,795 residents, 40.6% of the total. Together its 3 incorporated places hold 61.6% of those residents; the other 38.4% live outside any of them.
From Winona to Kilmichael, CDC publishes no figure by town: each reads Montgomery County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Winona | 3,795 | −14.7% | 40.6% |
| Duck Hill | 1,414 | +115.5% | 15.1% |
| Kilmichael | 549 | −13.4% | 5.9% |
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).
Montgomery County, Homes
Homes in Montgomery County
Of Montgomery County's 5,349 homes, 72% are detached houses, against 69% across Mississippi; 17% are mobile homes. Half of its homes were built before 1980, close to Mississippi's 1986: 26% date from before 1960 and 15% from 2000 or later. 72% 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 | Montgomery County | Mississippi |
|---|---|---|
| Housing units | 5,349 | 1,332,811 |
| Detached houses | 72% | 69% |
| In buildings of 5 or more | 4% | 9% |
| Mobile homes | 17% | 15% |
| Built before 1960 | 26% | 15% |
| Built since 2000 | 15% | 28% |
| Middle year built | 1980 | 1986 |
| Owner-occupied | 72% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.