Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in Hancock County, Georgia
EPA puts Hancock County in Zone 3, its lowest radon zone, and only 4 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
27.3%
Putnam County
- Putnam
- 27.3%
- Greene
- 16.7%
2 of 7 neighbours have 30+ tests, 2007 to 2016
Nearest county
27.3%
Putnam County, 22 miles
- Putnam
- 27.3%
- Georgia
- 23.9%
Share at 4+ pCi/L, 33 tests, 2007 to 2016
Ground above low
None
26.5 pts below Georgia
- Hancock
- 0.0%
- Georgia
- 26.5%
Share of land USGS rates moderate or high potential
Tests reported
6
Too few for a share
- Hancock
- 6
- Needed
- 30
2005 to 2014, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Hancock County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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
Hancock County, At a glance
Hancock County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Hancock County, 2008 to 2017, laboratory
CDC holds 4 reported tests for Hancock County over the 2008 to 2017 laboratory totals, with a median of 2.0 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Hancock County beside the counties around it is how this page reads it.
What these figures count
Only 4 tests were reported to CDC for Hancock 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).
Hancock County, Compared
Hancock County radon figures, compared
Calculated by Radon411CDC's largest figure for Hancock County rests on 6 tests over the 2005 to 2014 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 16.7 points and no rank or comparison is drawn from it. Results reached as high as 7.4 pCi/L, with a middle value of 1.9 pCi/L.
Of the counties bordering it, 2 have a figure over the 2007 to 2016 laboratory totals: Putnam County reported the largest share at or above 4 pCi/L, 27.3%, and Greene County the smallest, 16.7%. Farther out, Morgan County (36 miles away) at 17.2%, Jones County (37 miles away) at 26.5% and Oglethorpe County (42 miles away) at 29.2% 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 Hancock 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.
Hancock County, Geology
The ground under Hancock County
PredictedUSGS's geologic map puts all of Hancock County's mapped land in one class: low radon potential. The map puts 86.3% of Hancock County in the area it calls Little River Thrust Stack and 13.7% in Coastal Plain. USGS gives the first a radon index of 7 and the second 8, both in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Little River Thrust Stack | Biotite and amphibolite gneiss, granite gneiss, mica schist. | Low | 7 | 86.3% |
| 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 | 13.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Hancock County beside the ground around it
Across Georgia 26.5% of the land is rated moderate; none of Hancock County's is. Of the 7 counties that border it, 2 have more moderate-potential ground, Greene County the most at 37.2%.
The map rates the ground, not the air in any home.
Local help
Hancock County, Local resources
Radon testing and mitigation in Hancock County
- Georgia's radon programGeorgia Attorney General's Consumer Protection DivisionGeorgia's radon program does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Georgia.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
A kit costs $15.00 if mailed or $10.00 if picked up at a participating County Extension office.
- Compare kits
- Professionals in Georgia3 professionals are listed in Georgia.
What Georgia's program says
- Licensing of radon professionals
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
Hancock County, Questions
Questions about radon in Hancock County
Are radon levels high in Hancock County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Hancock County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.0 pCi/L. Of the counties bordering it, 2 have a figure over the 2007 to 2016 laboratory totals: Putnam County reported the largest share at or above 4 pCi/L, 27.3%, and Greene County the smallest, 16.7%.
Which counties border Hancock County?
Hancock County borders 7 counties: Baldwin County, Putnam County, Warren County, Washington County, Greene County, Glascock County and Taliaferro County.
Products
Hancock County, Products
Testing a home in Hancock County
No CDC figure names Hancock County; the nearest county with one, Putnam County (22 miles away), reported 27.3% 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 Hancock County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
MonitorKidde
Radon Detector (RAB) battery digital radon detector with an alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 12 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Hancock County, Bordering counties
Counties bordering Hancock County
Calculated by Radon411- Radon levels in Putnam CountyEPA zone 3
27.3%at or above 4 pCi/L
Median 2.2 pCi/L · 33 tests
- Radon levels in Baldwin CountyEPA zone 3
20.0%at or above 4 pCi/L
Median 1.3 pCi/L · 15 tests
- Radon levels in Greene CountyEPA zone 2
16.7%at or above 4 pCi/L
Median 1.6 pCi/L · 66 tests
- Radon levels in Warren CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 1 test
- Radon levels in Washington CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 2 tests
- Radon levels in Taliaferro CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 3 tests
- Radon levels in Glascock CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Hancock County, Cities and towns
Cities and towns in Hancock County
Hancock County's population has barely moved since 2020: 8,682 residents on July 1, 2025 against 8,711 then, by the Census Bureau's estimates. That works out to 18 people per square mile of land. Sparta, its one incorporated place, has 1,322 residents, 15.2% of the total. Reported testing is thin here: 6 tests over 2005 to 2014, or 0.7 for every 1,000 residents (2025 estimate), where Georgia as a whole comes to 2.2.
Sparta is the one incorporated place here; CDC publishes no figure by town, so it reads Hancock County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Sparta | 1,322 | −2.2% | 15.2% |
One incorporated place, 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).
Hancock County, Homes
Homes in Hancock County
Mobile homes are 44% of Hancock County's 4,945 homes and detached houses 50%, against 66% across Georgia. Half of its homes were built before 1989, close to Georgia's 1991: 11% date from before 1960 and 19% from 2000 or later. Owners live in 77% of the occupied homes (Georgia: 65%), so for most households a test and a fix are their own to order.
| Homes | Hancock County | Georgia |
|---|---|---|
| Housing units | 4,945 | 4,483,873 |
| Detached houses | 50% | 66% |
| In buildings of 5 or more | 2% | 16% |
| Mobile homes | 44% | 8% |
| Built before 1960 | 11% | 12% |
| Built since 2000 | 19% | 33% |
| Middle year built | 1989 | 1991 |
| Owner-occupied | 77% | 65% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.