
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
EPA puts Quitman 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, 68 miles
Share at 4+ pCi/L, 341 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
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 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Quitman County
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
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
Quitman County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC has published no radon test figures for Quitman County. Shelby County, TN, 68 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Quitman County, Compared
Quitman 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 (68 miles away) at 7.0%, Fayette County, TN (82 miles away) at 13.1% and Tipton County, TN (91 miles away) at 5.6%.
EPA's 1993 map puts Quitman 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.
Quitman County, Geology
USGS's geologic map puts all of Quitman County's mapped land in one class: low radon potential. The map puts 72.0% of Quitman County in the area it calls Mississippi Alluvial Plain and 28.0% in Loess Hills. USGS gives the first a radon index of 8 and the second 7, both 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 | 72.0% |
| Loess Hills | Loess. | Low | 7 | 28.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Mississippi 0.1% of the land is rated high; none of Quitman County's is. None of the 4 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Quitman County, Local resources
What it means
Quitman County, Questions
No CDC testing statistics are published here for Quitman County, Mississippi yet. Of the 8 nearest counties with a figure, within 139 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 31.9%.
Quitman County borders 4 counties: Panola County, Coahoma County, Tallahatchie County and Tunica County.
Products
Quitman County, Products
No CDC figure names Quitman County; the nearest county with one, Shelby County, TN (68 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 Quitman County.
Test kits and monitors: 1 of 3
Explore
Quitman County, Bordering counties
counties bordering Quitman County: 1 of 4
Quitman County, Cities and towns
Quitman County has been losing residents: from 6,157 in 2020 to 5,364 on July 1, 2025, a fall of 12.9% by the Census Bureau's estimates. That works out to 13 people per square mile of land. Its largest town, Marks, has 1,198 residents, 22.3% of the total.
From Marks to Falcon, CDC publishes no figure by town: each reads Quitman County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Marks | 1,198 | −14.5% | 22.3% |
| Lambert | 1,095 | −14.5% | 20.4% |
| Crenshawextends beyond Quitman County | 610 | −3.3% | Counted whole |
| Crowderextends beyond Quitman County | 522 | −7.8% | Counted whole |
| Sledge | 323 | −12.9% | 6.0% |
| Falcon | 114 | −8.8% | 2.1% |
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). A place that extends beyond Quitman County is counted whole, so it has no share.
Quitman County, Homes
Of Quitman County's 3,045 homes, 75% are detached houses, against 69% across Mississippi; 15% are mobile homes. The homes are older than Mississippi's as a whole: half were built before 1972 (1986 for Mississippi), and 33% date from before 1960. 62% 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 | Quitman County | Mississippi |
|---|---|---|
| Housing units | 3,045 | 1,332,811 |
| Detached houses | 75% | 69% |
| In buildings of 5 or more | 6% | 9% |
| Mobile homes | 15% | 15% |
| Built before 1960 | 33% | 15% |
| Built since 2000 | 8% | 28% |
| Middle year built | 1972 | 1986 |
| Owner-occupied | 62% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.