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Radon Levels in Itawamba County, Mississippi

EPA puts Itawamba 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

  • Highest bordering

    18.6%

    Franklin County

    Franklin
    18.6%

    1 of 6 neighbours have 30+ tests, 2006 to 2015

  • Nearest county

    18.6%

    Franklin County, 32 miles

    Franklin
    18.6%

    Share at 4+ pCi/L, 210 tests, 2006 to 2015

  • Ground above low

    3.1%

    5.0 pts below MS

    Itawamba
    3.1%
    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 Itawamba 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

Itawamba County, At a glance

Itawamba County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Itawamba 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 97% 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 Itawamba County. Franklin County, AL, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 18.6% of its tests at or above 4 pCi/L.

How to read these figures

Itawamba County, Compared

Itawamba County radon figures, compared

Calculated by Radon411

CDC publishes no radon test figure for Itawamba County, and none for any other Mississippi county: its counts over the 2006 to 2015 laboratory totals cover 2,669 counties elsewhere in the country. 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.

Franklin County, AL, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 18.6% of its tests at or above 4 pCi/L. Farther out, Colbert County, AL (43 miles away) at 36.6%, Lauderdale County, AL (59 miles away) at 27.1% and Lawrence County, AL (62 miles away) at 14.9% have figures too.

EPA's 1993 map puts Itawamba County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 97% of the county's land low radon potential.

The United States and the counties around Itawamba County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Franklin County, ALborders it21018.6%1.4 pCi/L
Marion County, ALborders it287.1%1.2 pCi/L
The nearest counties to Itawamba County with 30 or more tests, in any state, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Franklin County, AL32 mi21018.6%1.4 pCi/L
Colbert County, AL43 mi97836.6%2.7 pCi/L
Lauderdale County, AL59 mi2,02827.1%2.1 pCi/L
Lawrence County, AL62 mi17514.9%1.7 pCi/L
McNairy County, TN63 mi498.2%1.0 pCi/L
Chester County, TN80 mi390.0%0.9 pCi/L
Tuscaloosa County, AL84 mi6910.1%1.1 pCi/L
Lawrence County, TN85 mi10922.0%1.6 pCi/L

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

Itawamba County, Geology

The ground under Itawamba County

Predicted

Most of the ground under Itawamba County is one class on USGS's geologic map: 96.9% of its land is low radon potential, with 3.1% moderate. 96.9% of it lies in the area the map calls Tombigbee Hills, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Itawamba County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Tombigbee HillsClay, sand, sandstone, chalk, chalky marl, quartzose, chert gravels, and quartz sand.Low896.9%
Pontotoc Ridge/Black PrairiesGlauconitic sand, clay, sandy limestone, micaceous chalk, and lime.Moderate93.1%

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

Itawamba County beside the ground around it

Across Mississippi 0.1% of the land is rated high; none of Itawamba County's is. Of the 6 counties that border it, 2 have more high-potential ground, Franklin County, AL the most at 49.4%.

Share of land by USGS radon potential: Itawamba County, the 6 counties bordering it and Mississippi
AreaEPA zoneLow potentialModerate potentialHigh potential
Itawamba CountyZone 396.9%3.1%None
Lee CountyZone 22.4%97.6%None
Monroe CountyZone 372.0%28.0%None
Marion County, ALZone 20.2%99.8%None
Franklin County, ALZone 1None50.6%49.4%
Tishomingo CountyZone 380.5%2.9%16.5%
Prentiss CountyZone 325.5%74.5%None
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

Itawamba County, Questions

Questions about radon in Itawamba County

Are radon levels high in Itawamba County?

No CDC testing statistics are published here for Itawamba County, Mississippi yet. Franklin County, AL, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 18.6% of its tests at or above 4 pCi/L.

Which counties border Itawamba County?

Itawamba County borders 6 counties: Lee County, MS, Monroe County, MS, Marion County, AL, Franklin County, AL, Tishomingo County, MS and Prentiss County, MS.

Products

Itawamba County, Products

Testing a home in Itawamba County

No CDC figure names Itawamba County; the nearest county with one, Franklin County, AL (32 miles away), reported 18.6% 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 Itawamba County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Itawamba County homes, compared

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Itawamba County, Bordering counties

Counties bordering Itawamba County

Calculated by Radon411

Itawamba County, Cities and towns

Cities and towns in Itawamba County

The Census Bureau estimates 24,152 residents in Itawamba County for July 1, 2025, 297 more than in 2020 (+1.2%). That works out to 45 people per square mile of land. No town dominates: Fulton, the largest, has 4,640 residents, 19.2% of the total. Together its 3 incorporated places hold 25.9% of those residents; the other 74.1% live outside any of them.

From Fulton to Tremont, CDC publishes no figure by town: each reads Itawamba County's.

The cities and towns in Itawamba County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Fulton4,640+2.7%19.2%
Mantachie1,143+0.8%4.7%
Tremont473+0.6%2.0%

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).

Itawamba County, Homes

Homes in Itawamba County

Itawamba County is a place of houses on their own lots: 76% of its 10,515 homes are detached single-family houses, against 69% across Mississippi. Half of its homes were built before 1983, close to Mississippi's 1986: 13% date from before 1960 and 20% from 2000 or later. Owners live in 79% of the occupied homes (Mississippi: 69%), so for most households a test and a fix are their own to order.

Homes in Itawamba County, Mississippi, 2019 to 2023
HomesItawamba CountyMississippi
Housing units10,5151,332,811
Detached houses76%69%
In buildings of 5 or more2%9%
Mobile homes20%15%
Built before 196013%15%
Built since 200020%28%
Middle year built19831986
Owner-occupied79%69%

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