
Short-term kit![]()
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
EPA puts Jefferson County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
0.0%
Richmond County
1 of 8 neighbours have 30+ tests, 2007 to 2016
Nearest county
0.0%
Richmond County, 29 miles
Share at 4+ pCi/L, 35 tests, 2007 to 2016
Ground above low
None
26.5 pts below Georgia
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Jefferson 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
Jefferson 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 holds 3 reported tests for Jefferson County over the 2008 to 2017 laboratory totals, with a median of 0.6 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Jefferson County beside the counties around it is how this page reads it.
Only 3 tests were reported to CDC for Jefferson County over 2008 to 2017 (laboratory totals), and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Jefferson County, Compared
CDC's largest figure for Jefferson County rests on 3 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 2.6 pCi/L, with a middle value of 0.6 pCi/L.
Richmond County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L. Farther out, Columbia County (35 miles away) at 9.7%, Laurens County (50 miles away) at 16.1% and Greene County (56 miles away) at 16.7% have figures too. Pooled across 137 Georgia counties, 23.9% of reported tests reached that level; across every county in the country with a figure, 35.8%.
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 Jefferson 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.
Jefferson County, Geology
USGS's geologic map puts all of Jefferson County's mapped land in one class: low radon potential. All 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 | 100% |
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 Jefferson 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
Jefferson 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
Jefferson County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Jefferson County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.6 pCi/L. Richmond County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 0.0% of its tests at or above 4 pCi/L.
Jefferson County borders 8 counties: Glascock County, Washington County, Johnson County, Burke County, Warren County, McDuffie County, Richmond County and Emanuel County.
Products
Jefferson County, Products
No CDC figure names Jefferson County; the nearest county with one, Richmond County (29 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 Jefferson County.
Test kits and monitors: 1 of 3
Explore
Jefferson County, Bordering counties
21.4%at or above 4 pCi/L
Median 1.0 pCi/L · 14 tests
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 2 tests
0.0%at or above 4 pCi/L
Median 2.2 pCi/L · 1 test
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 4 tests
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 1 test
0.0%at or above 4 pCi/L
Median 1.3 pCi/L · 35 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.
Jefferson County, Cities and towns
About 15,011 people live in Jefferson County by the Census Bureau's estimate for July 1, 2025, 666 fewer than in 2020 (−4.2%). That works out to 29 people per square mile of land. No town dominates: Louisville, the largest, has 2,237 residents, 14.9% of the total. Together its 6 incorporated places hold 44.5% of those residents; the other 55.5% live outside any of them. Reported testing is thin here: 3 tests over 2008 to 2017, or 0.2 for every 1,000 residents (2025 estimate), where Georgia as a whole comes to 2.7.
From Louisville to Bartow, CDC publishes no figure by town: each reads Jefferson County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Louisville | 2,237 | −6.0% | 14.9% |
| Wrens | 2,100 | −5.1% | 14.0% |
| Wadley | 1,548 | −5.6% | 10.3% |
| Stapleton | 399 | −0.3% | 2.7% |
| Avera | 219 | −3.5% | 1.5% |
| Bartow | 177 | −5.3% | 1.2% |
6 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).
Jefferson County, Homes
Of Jefferson County's 7,165 homes, 62% are detached houses, against 66% across Georgia; 31% are mobile homes. The homes are older than Georgia's as a whole: half were built before 1982 (1991 for Georgia), and 21% date from before 1960. 68% 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 | Jefferson County | Georgia |
|---|---|---|
| Housing units | 7,165 | 4,483,873 |
| Detached houses | 62% | 66% |
| In buildings of 5 or more | 3% | 16% |
| Mobile homes | 31% | 8% |
| Built before 1960 | 21% | 12% |
| Built since 2000 | 17% | 33% |
| Middle year built | 1982 | 1991 |
| Owner-occupied | 68% | 65% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.