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Radon Levels in Lauderdale County, Mississippi

EPA puts Lauderdale 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, 90 miles

    Tuscaloosa
    10.1%

    Share at 4+ pCi/L, 69 tests, 2006 to 2015

  • Ground above low

    None

    8.1 pts below MS

    Lauderdale
    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 Lauderdale 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

Lauderdale County, At a glance

Lauderdale County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Lauderdale 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 Lauderdale County. Tuscaloosa County, AL, 90 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.

How to read these figures

Lauderdale County, Compared

Lauderdale County radon figures, compared

Calculated by Radon411

Lauderdale 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 (90 miles away) at 10.1%, Mobile County, AL (115 miles away) at 4.4% and Autauga County, AL (118 miles away) at 12.8%.

EPA's 1993 map puts Lauderdale 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 Lauderdale County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Sumter County, ALborders it20.0%2.3 pCi/L
The nearest counties to Lauderdale County with 30 or more tests, in any state, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Tuscaloosa County, AL90 mi6910.1%1.1 pCi/L
Mobile County, AL115 mi454.4%0.2 pCi/L
Autauga County, AL118 mi3912.8%0.9 pCi/L
Jefferson County, AL130 mi90410.6%1.3 pCi/L
Shelby County, AL131 mi43610.3%1.3 pCi/L
Escambia County, FL142 mi510.0%0.7 pCi/L
Montgomery County, AL144 mi1057.6%0.9 pCi/L
Elmore County, AL147 mi336.1%1.0 pCi/L

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

Lauderdale County, Geology

The ground under Lauderdale County

Predicted

USGS's geologic map puts all of Lauderdale 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).

USGS's geologic areas under Lauderdale County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
North Central Hills/FlatwoodsTertiary nonmarine to deltaic sediments ranging from sand to clay.Low8100%

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

Lauderdale County beside the ground around it

Across Mississippi 0.1% of the land is rated high; none of Lauderdale County's is. Of the 7 counties that border it, 2 have more moderate-potential ground, Sumter County, AL the most at 58.2%.

Share of land by USGS radon potential: Lauderdale County, the 7 counties bordering it and Mississippi
AreaEPA zoneLow potentialModerate potentialHigh potential
Lauderdale CountyZone 3100%NoneNone
Clarke CountyZone 3100%NoneNone
Newton CountyZone 3100%NoneNone
Kemper CountyZone 386.7%13.3%None
Sumter County, ALZone 241.8%58.2%None
Neshoba CountyZone 3100%NoneNone
Jasper CountyZone 3100%NoneNone
Choctaw County, ALZone 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

Lauderdale County, Questions

Questions about radon in Lauderdale County

Are radon levels high in Lauderdale County?

No CDC testing statistics are published here for Lauderdale County, Mississippi yet. Of the 8 nearest counties with a figure, within 147 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 12.8%.

Which counties border Lauderdale County?

Lauderdale County borders 7 counties: Clarke County, MS, Newton County, MS, Kemper County, MS, Sumter County, AL, Neshoba County, MS, Jasper County, MS and Choctaw County, AL.

Products

Lauderdale County, Products

Testing a home in Lauderdale County

No CDC figure names Lauderdale County; the nearest county with one, Tuscaloosa County, AL (90 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 Lauderdale County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Lauderdale County homes, compared

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Lauderdale County, Bordering counties

Counties bordering Lauderdale County

Calculated by Radon411

Lauderdale County, Cities and towns

Cities and towns in Lauderdale County

About 70,317 people live in Lauderdale County by the Census Bureau's estimate for July 1, 2025, 2,361 fewer than in 2020 (−3.2%). That works out to 100 people per square mile of land. Its largest town, Meridian, has 33,370 residents, 47.5% of the total. Together its 2 incorporated places hold 49.9% of those residents; the other 50.1% live outside any of them.

From Meridian to Marion, CDC publishes no figure by town: each reads Lauderdale County's.

The cities and towns in Lauderdale County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Meridian33,370−4.3%47.5%
Marion1,721−1.2%2.4%

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).

Lauderdale County, Homes

Homes in Lauderdale County

Of Lauderdale County's 33,558 homes, 62% are detached houses, against 69% across Mississippi; 16% are mobile homes. Half of its homes were built before 1979, close to Mississippi's 1986: 21% date from before 1960 and 21% from 2000 or later. 63% 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 Lauderdale County, Mississippi, 2019 to 2023
HomesLauderdale CountyMississippi
Housing units33,5581,332,811
Detached houses62%69%
In buildings of 5 or more12%9%
Mobile homes16%15%
Built before 196021%15%
Built since 200021%28%
Middle year built19791986
Owner-occupied63%69%

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