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Radon Levels in Tunica County, Mississippi

EPA puts Tunica 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, 46 miles

    Shelby
    7.0%

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

  • Ground above low

    None

    8.1 pts below MS

    Tunica
    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 Tunica 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

Tunica County, At a glance

Tunica County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Tunica 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 Tunica County. Shelby County, TN, 46 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.

How to read these figures

Tunica County, Compared

Tunica County radon figures, compared

Calculated by Radon411

No Mississippi county, Tunica County included, has a radon test figure from CDC; over the 2006 to 2015 laboratory totals, the agency's counts name 2,669 counties in other states. 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 (46 miles away) at 7.0%, Fayette County, TN (66 miles away) at 13.1% and Tipton County, TN (68 miles away) at 5.6%.

EPA's 1993 map puts Tunica 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 Tunica County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Phillips County, ARborders it10.0%0.1 pCi/L
Crittenden County, ARborders it10.0%0.1 pCi/L
The nearest counties to Tunica County with 30 or more tests, in any state, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Shelby County, TN46 mi3417.0%1.0 pCi/L
Fayette County, TN66 mi8413.1%1.2 pCi/L
Tipton County, TN68 mi715.6%1.1 pCi/L
McNairy County, TN109 mi498.2%1.0 pCi/L
Madison County, TN109 mi885.7%1.1 pCi/L
Pulaski County, AR111 mi976.2%1.0 pCi/L
Chester County, TN113 mi390.0%0.9 pCi/L
Gibson County, TN123 mi472.1%0.9 pCi/L

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

Tunica County, Geology

The ground under Tunica County

Predicted

USGS's geologic map puts all of Tunica County's mapped land in one class: low radon potential. All of it lies in the area the map calls Mississippi Alluvial Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Tunica County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Mississippi Alluvial PlainAlluvial sand, silt, gravel, and clay.Low8100%

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

Tunica County beside the ground around it

Across Mississippi 0.1% of the land is rated high; none of Tunica County's is. Of the 8 counties that border it, 2 have more moderate-potential ground, Phillips County, AR the most at 3.2%.

Share of land by USGS radon potential: Tunica County, the 8 counties bordering it and Mississippi
AreaEPA zoneLow potentialModerate potentialHigh potential
Tunica CountyZone 3100%NoneNone
Tate CountyZone 3100%NoneNone
DeSoto CountyZone 3100%NoneNone
Quitman CountyZone 3100%NoneNone
Lee County, ARZone 397.6%2.4%None
Panola CountyZone 3100%NoneNone
Phillips County, ARZone 396.8%3.2%None
Coahoma CountyZone 3100%NoneNone
Crittenden County, ARZone 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

Tunica County, Questions

Questions about radon in Tunica County

Are radon levels high in Tunica County?

No CDC testing statistics are published here for Tunica County, Mississippi yet. Of the 8 nearest counties with a figure, within 123 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 13.1%.

Which counties border Tunica County?

Tunica County borders 8 counties: Tate County, MS, DeSoto County, MS, Quitman County, MS, Lee County, AR, Panola County, MS, Phillips County, AR, Coahoma County, MS and Crittenden County, AR.

Products

Tunica County, Products

Testing a home in Tunica County

No CDC figure names Tunica County; the nearest county with one, Shelby County, TN (46 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 Tunica County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Tunica County homes, compared

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Tunica County, Bordering counties

Counties bordering Tunica County

Calculated by Radon411

Tunica County, Cities and towns

Cities and towns in Tunica County

Tunica County has been losing residents: from 9,732 in 2020 to 8,819 on July 1, 2025, a fall of 9.4% by the Census Bureau's estimates. That works out to 19 people per square mile of land. Tunica, its one incorporated place, has 819 residents, 9.3% of the total.

Tunica is the one incorporated place here; CDC publishes no figure by town, so it reads Tunica County's.

Tunica, Tunica County: residents on July 1, 2025
PlaceResidentsSince 2020Share of residents
Tunica819−19.4%9.3%

One incorporated place, 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).

Tunica County, Homes

Homes in Tunica County

Mobile homes are 22% of Tunica County's 4,712 homes and detached houses 44%, against 69% across Mississippi. Much of Tunica County is recent building: 34% of its homes have gone up since 2000 and the middle year built is 1994, against 1986 for Mississippi. Most occupied homes here are rented: owners live in 41% (Mississippi: 69%). A tenant can run a test; a fix is the landlord's to make.

Homes in Tunica County, Mississippi, 2019 to 2023
HomesTunica CountyMississippi
Housing units4,7121,332,811
Detached houses44%69%
In buildings of 5 or more22%9%
Mobile homes22%15%
Built before 19609%15%
Built since 200034%28%
Middle year built19941986
Owner-occupied41%69%

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