
Short-term kit![]()
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
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
Share at 4+ pCi/L, 47 tests, 2007 to 2016
Ground above low
None
26.5 pts below Georgia
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 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Tattnall County
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
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
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
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.
Tattnall County, Compared
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.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Tattnall County, Geology
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).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coastal Plain | Cretaceous and Tertiary marine and coastal sediments including limestone, sandstone, sand, silt, and clay. Coastal plan sands containing glauconite may generate locally elevated radon. | Low | 8 | 97.3% |
| Coastal Plain | Quaternary and Pleistocene-Pliocene coastal sand and gravel, lagoon and marsh clay and silt. | Low | 7 | 2.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
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.
The map rates the ground, not the air in any home.
Local help
Tattnall County, Local resources
A kit costs $15.00 if mailed or $10.00 if picked up at a participating County Extension office.
There are no laws mandating a mitigator receive certification in Georgia, however, many mitigators choose to get certified by one of two national programs.
What it means
Tattnall County, Questions
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%.
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
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 monitors: 1 of 3
Explore
Tattnall County, Bordering counties
0.0%at or above 4 pCi/L
Median 1.2 pCi/L · 1 test
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 2 tests
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 3 tests
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 12 tests
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 1 test
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Tattnall County, Cities and towns
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.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Glennville | 5,023 | −4.9% | 20.6% |
| Reidsville | 2,576 | +2.3% | 10.6% |
| Collins | 545 | +0.6% | 2.2% |
| Cobbtown | 344 | Level | 1.4% |
| Manassas | 62 | +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
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 | Tattnall County | Georgia |
|---|---|---|
| Housing units | 9,378 | 4,483,873 |
| Detached houses | 57% | 66% |
| In buildings of 5 or more | 1% | 16% |
| Mobile homes | 35% | 8% |
| Built before 1960 | 17% | 12% |
| Built since 2000 | 23% | 33% |
| Middle year built | 1986 | 1991 |
| Owner-occupied | 72% | 65% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.