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Radon Levels in Quitman County, Mississippi

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

    Shelby
    7.0%

    Share at 4+ pCi/L, 341 tests, 2006 to 2015

  • Ground above low

    None

    8.1 pts below MS

    Quitman
    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. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Quitman County

Starts at EPA's action level

4.0pCi/L

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

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 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

Quitman County, At a glance

Quitman County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Quitman County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

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 Quitman County. Shelby County, TN, 68 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.

How to read these figures

Quitman County, Compared

Quitman County radon figures, compared

Calculated by Radon411

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.

The United States and the counties around Quitman County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
The nearest counties to Quitman County with 30 or more tests, in any state, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Shelby County, TN68 mi3417.0%1.0 pCi/L
Fayette County, TN82 mi8413.1%1.2 pCi/L
Tipton County, TN91 mi715.6%1.1 pCi/L
McNairy County, TN117 mi498.2%1.0 pCi/L
Pulaski County, AR121 mi976.2%1.0 pCi/L
Madison County, TN125 mi885.7%1.1 pCi/L
Chester County, TN125 mi390.0%0.9 pCi/L
Saline County, AR139 mi4731.9%2.1 pCi/L

Pooled shares: Radon411's sum of CDC's county counts for one period.

Quitman County, Geology

The ground under Quitman County

Predicted

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).

USGS's geologic areas under Quitman County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Mississippi Alluvial PlainAlluvial sand, silt, gravel, and clay.Low872.0%
Loess HillsLoess.Low728.0%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Quitman County beside the ground around it

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.

Share of land by USGS radon potential: Quitman County, the 4 counties bordering it and Mississippi
AreaEPA zoneLow potentialModerate potentialHigh potential
Quitman CountyZone 3100%NoneNone
Panola CountyZone 3100%NoneNone
Coahoma CountyZone 3100%NoneNone
Tallahatchie CountyZone 3100%NoneNone
Tunica CountyZone 3100%NoneNone
Mississippi82 counties, pooled by land areaVaries91.8%8.0%0.1%

The map rates the ground, not the air in any home.

What it means

Quitman County, Questions

Questions about radon in Quitman County

Are radon levels high in Quitman County?

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%.

Which counties border Quitman County?

Quitman County borders 4 counties: Panola County, Coahoma County, Tallahatchie County and Tunica County.

Products

Quitman County, Products

Testing a home in Quitman County

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 monitors3

See every kit and monitor

Best radon monitors for Quitman County homes, compared

Explore

Quitman County, Bordering counties

Counties bordering Quitman County

Calculated by Radon411

Quitman County, Cities and towns

Cities and towns in Quitman County

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.

The cities and towns in Quitman County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Marks1,198−14.5%22.3%
Lambert1,095−14.5%20.4%
Crenshawextends beyond Quitman County610−3.3%Counted whole
Crowderextends beyond Quitman County522−7.8%Counted whole
Sledge323−12.9%6.0%
Falcon114−8.8%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

Homes in Quitman County

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 in Quitman County, Mississippi, 2019 to 2023
HomesQuitman CountyMississippi
Housing units3,0451,332,811
Detached houses75%69%
In buildings of 5 or more6%9%
Mobile homes15%15%
Built before 196033%15%
Built since 20008%28%
Middle year built19721986
Owner-occupied62%69%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.