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Radon Levels in Yalobusha County, Mississippi

EPA puts Yalobusha 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, 80 miles

    Shelby
    7.0%

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

  • Ground above low

    None

    8.1 pts below MS

    Yalobusha
    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 Yalobusha 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

Yalobusha County, At a glance

Yalobusha County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Yalobusha 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 Yalobusha County. Shelby County, TN, 80 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.

How to read these figures

Yalobusha County, Compared

Yalobusha County radon figures, compared

Calculated by Radon411

No Mississippi county, Yalobusha 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 (80 miles away) at 7.0%, Fayette County, TN (82 miles away) at 13.1% and Tipton County, TN (101 miles away) at 5.6%.

EPA's 1993 map puts Yalobusha 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 Yalobusha 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 Yalobusha County with 30 or more tests, in any state, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Shelby County, TN80 mi3417.0%1.0 pCi/L
Fayette County, TN82 mi8413.1%1.2 pCi/L
Tipton County, TN101 mi715.6%1.1 pCi/L
McNairy County, TN103 mi498.2%1.0 pCi/L
Franklin County, AL110 mi21018.6%1.4 pCi/L
Chester County, TN114 mi390.0%0.9 pCi/L
Colbert County, AL118 mi97836.6%2.7 pCi/L
Madison County, TN120 mi885.7%1.1 pCi/L

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

Yalobusha County, Geology

The ground under Yalobusha County

Predicted

USGS's geologic map puts all of Yalobusha County's mapped land in one class: low radon potential. The map puts 87.6% of Yalobusha County in the area it calls North Central Hills/Flatwoods and 12.4% 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 Yalobusha County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
North Central Hills/FlatwoodsTertiary nonmarine to deltaic sediments ranging from sand to clay.Low887.6%
Loess HillsLoess.Low712.4%

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

Yalobusha County beside the ground around it

Across Mississippi 0.1% of the land is rated high; none of Yalobusha County's is. None of the 5 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Yalobusha County, the 5 counties bordering it and Mississippi
AreaEPA zoneLow potentialModerate potentialHigh potential
Yalobusha CountyZone 3100%NoneNone
Grenada CountyZone 3100%NoneNone
Lafayette CountyZone 3100%NoneNone
Calhoun CountyZone 3100%NoneNone
Tallahatchie CountyZone 3100%NoneNone
Panola 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

Yalobusha County, Questions

Questions about radon in Yalobusha County

Are radon levels high in Yalobusha County?

No CDC testing statistics are published here for Yalobusha County, Mississippi yet. Of the 8 nearest counties with a figure, within 120 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 36.6%.

Which counties border Yalobusha County?

Yalobusha County borders 5 counties: Grenada County, Lafayette County, Calhoun County, Tallahatchie County and Panola County.

Products

Yalobusha County, Products

Testing a home in Yalobusha County

No CDC figure names Yalobusha County; the nearest county with one, Shelby County, TN (80 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 Yalobusha County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Yalobusha County homes, compared

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Yalobusha County, Bordering counties

Counties bordering Yalobusha County

Calculated by Radon411

Yalobusha County, Cities and towns

Cities and towns in Yalobusha County

About 12,375 people live in Yalobusha County by the Census Bureau's estimate for July 1, 2025, 69 fewer than in 2020 (−0.6%). That works out to 26 people per square mile of land. Its largest town, Water Valley, has 3,414 residents, 27.6% of the total. Together its 3 incorporated places hold 37.6% of those residents; the other 62.4% live outside any of them.

From Water Valley to Oakland, CDC publishes no figure by town: each reads Yalobusha County's.

The cities and towns in Yalobusha County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Water Valley3,414+1.3%27.6%
Coffeeville778−2.4%6.3%
Oakland458−1.3%3.7%

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).

Yalobusha County, Homes

Homes in Yalobusha County

Of Yalobusha County's 6,476 homes, 68% are detached houses, against 69% across Mississippi; 26% are mobile homes. Half of its homes were built before 1981, close to Mississippi's 1986: 18% date from before 1960 and 17% from 2000 or later. 70% 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 Yalobusha County, Mississippi, 2019 to 2023
HomesYalobusha CountyMississippi
Housing units6,4761,332,811
Detached houses68%69%
In buildings of 5 or more2%9%
Mobile homes26%15%
Built before 196018%15%
Built since 200017%28%
Middle year built19811986
Owner-occupied70%69%

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