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Radon Levels in Tattnall County, Georgia

EPA puts Tattnall 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

    0.0%

    Chatham County, 54 miles

    Chatham
    0.0%
    Georgia
    23.9%

    Share at 4+ pCi/L, 47 tests, 2007 to 2016

  • Ground above low

    None

    26.5 pts below Georgia

    Tattnall
    0.0%
    Georgia
    26.5%

    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 Tattnall 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

Tattnall County, At a glance

Tattnall County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Tattnall 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 Tattnall County. Chatham County, 54 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.

How to read these figures

Tattnall County, Compared

Tattnall County radon figures, compared

Calculated by Radon411

CDC's county radon counts over the 2007 to 2016 laboratory totals cover 137 Georgia counties, and Tattnall County is not among them: no year's figure and no ten-year laboratory total names it. Pooled across 137 Georgia counties, 23.9% of reported tests reached that level; across every county in the country with a figure, 35.8%.

The nearest counties with a figure are Chatham County (54 miles away) at 0.0%, Laurens County (58 miles away) at 16.1% and Richmond County (91 miles away) at 0.0%. Statewide for the same period, Barrow County reported the highest share (51.0%) and Dougherty County the lowest (0.0%).

EPA's 1993 map puts Tattnall 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.

Georgia, the United States and the counties around Tattnall County, 2007 to 2016, laboratory
AreaTestsAt or above 4 pCi/LMedian
Georgia, pooled137 counties, pooled29,45523.9%Not pooled
United States, pooled2,666 counties, pooled1,939,02535.8%Not pooled
Barrow Countyhighest in the state34151.0%4.0 pCi/L
Dougherty Countylowest in the state320.0%0.6 pCi/L
Evans County, GAborders it10.0%1.2 pCi/L
Liberty County, GAborders it120.0%1.0 pCi/L
Emanuel County, GAborders it10.0%0.7 pCi/L
Wayne County, GAborders it30.0%0.5 pCi/L
Toombs County, GAborders it20.0%0.8 pCi/L
The nearest Georgia counties to Tattnall County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Chatham County54 mi470.0%0.6 pCi/L
Laurens County58 mi3116.1%0.9 pCi/L
Richmond County91 mi350.0%1.3 pCi/L
Houston County98 mi618.2%1.5 pCi/L
Columbia County104 mi729.7%0.8 pCi/L
Bibb County109 mi960.0%1.0 pCi/L
Jones County111 mi3426.5%2.0 pCi/L
Putnam County117 mi3327.3%2.2 pCi/L

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

Tattnall County, Geology

The ground under Tattnall County

Predicted

USGS's geologic map puts all of Tattnall County's mapped land in one class: low radon potential. 97.3% of it lies in the area the map calls Coastal Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Tattnall County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Coastal PlainCretaceous and Tertiary marine and coastal sediments including limestone, sandstone, sand, silt, and clay. Coastal plan sands containing glauconite may generate locally elevated radon.Low897.3%
Coastal PlainQuaternary and Pleistocene-Pliocene coastal sand and gravel, lagoon and marsh clay and silt.Low72.7%

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

Tattnall County beside the ground around it

Across Georgia 26.5% of the land is rated moderate; none of Tattnall County's is. None of the 8 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Tattnall County, the 8 counties bordering it and Georgia
AreaEPA zoneLow potentialModerate potentialHigh potential
Tattnall CountyZone 3100%NoneNone
Evans CountyZone 3100%NoneNone
Toombs CountyZone 3100%NoneNone
Candler CountyZone 3100%NoneNone
Long CountyZone 3100%NoneNone
Appling CountyZone 3100%NoneNone
Wayne CountyZone 3100%NoneNone
Liberty CountyZone 397.1%NoneNone
Emanuel CountyZone 3100%NoneNone
Georgia159 counties, pooled by land areaVaries73.1%26.5%None

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

What it means

Tattnall County, Questions

Questions about radon in Tattnall County

Are radon levels high in Tattnall County?

No CDC testing statistics are published here for Tattnall County, Georgia yet. Of the 8 nearest counties with a figure, within 117 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 27.3%.

Which counties border Tattnall County?

Tattnall County borders 8 counties: Evans County, Toombs County, Candler County, Long County, Appling County, Wayne County, Liberty County and Emanuel County.

Products

Tattnall County, Products

Testing a home in Tattnall County

No CDC figure names Tattnall County; the nearest county with one, Chatham County (54 miles away), reported 0.0% of its tests at or above 4 pCi/L over the 2007 to 2016 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 Tattnall County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Tattnall County homes, compared

Explore

Tattnall County, Bordering counties

Counties bordering Tattnall County

Calculated by Radon411

Tattnall County, Cities and towns

Cities and towns in Tattnall County

Tattnall County's population has barely moved since 2020: 24,376 residents on July 1, 2025 against 24,328 then, by the Census Bureau's estimates. That works out to 51 people per square mile of land. Its largest town, Glennville, has 5,023 residents, 20.6% of the total. Together its 5 incorporated places hold 35.1% of those residents; the other 64.9% live outside any of them. CDC publishes no radon test count for Tattnall County; across Georgia its counts for 2007 to 2016 come to 2.6 tests for every 1,000 residents (2025 estimate).

From Glennville to Manassas, CDC publishes no figure by town: each reads Tattnall County's.

The cities and towns in Tattnall County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Glennville5,023−4.9%20.6%
Reidsville2,576+2.3%10.6%
Collins545+0.6%2.2%
Cobbtown344Level1.4%
Manassas62+3.3%0.3%

5 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).

Tattnall County, Homes

Homes in Tattnall County

Of Tattnall County's 9,378 homes, 57% are detached houses, against 66% across Georgia; 35% are mobile homes. Half of its homes were built before 1986, close to Georgia's 1991: 17% date from before 1960 and 23% from 2000 or later. 72% of occupied homes are lived in by their owner (Georgia: 65%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Tattnall County, Georgia, 2019 to 2023
HomesTattnall CountyGeorgia
Housing units9,3784,483,873
Detached houses57%66%
In buildings of 5 or more1%16%
Mobile homes35%8%
Built before 196017%12%
Built since 200023%33%
Middle year built19861991
Owner-occupied72%65%

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