
Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
EPA puts Twiggs County in Zone 3, its lowest radon zone, and only 2 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
26.5%
Jones County
4 of 6 neighbours have 30+ tests, 2007 to 2016
Nearest county
0.0%
Bibb County, 18 miles
Share at 4+ pCi/L, 96 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
2007 to 2016, laboratory
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Twiggs 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
Twiggs 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 2 reported tests for Twiggs County over the 2008 to 2017 laboratory totals, with a median of 2.4 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Twiggs County beside the counties around it is how this page reads it.
Only 2 tests were reported to CDC for Twiggs 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).
Twiggs County, Compared
CDC's largest figure for Twiggs County rests on 3 tests over the 2007 to 2016 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 0.9 pCi/L, with a middle value of 0.6 pCi/L.
Of the counties bordering it, 4 have a figure over the 2007 to 2016 laboratory totals: Jones County reported the largest share at or above 4 pCi/L, 26.5%, and Bibb County the smallest, 0.0%, with Laurens County at 16.1% and Houston County at 8.2% between. Farther out, Monroe County (37 miles away) at 23.8%, Putnam County (45 miles away) at 27.3% and Morgan County (64 miles away) at 17.2% 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 Twiggs 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.
Twiggs County, Geology
USGS's geologic map puts all of Twiggs 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 Twiggs County's is. None of the 6 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Twiggs 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
Twiggs County, Questions
Over the 2008 to 2017 laboratory totals, 50.0% of the radon tests reported to CDC for Twiggs County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.4 pCi/L. Of the counties bordering it, 4 have a figure over the 2007 to 2016 laboratory totals: Jones County reported the largest share at or above 4 pCi/L, 26.5%, and Bibb County the smallest, 0.0%, with Laurens County at 16.1% and Houston County at 8.2% between.
Twiggs County borders 6 counties: Bibb County, Bleckley County, Houston County, Wilkinson County, Jones County and Laurens County.
Products
Twiggs County, Products
No CDC figure names Twiggs County; the nearest county with one, Bibb County (18 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 Twiggs County.
Test kits and monitors: 1 of 3
Explore
Twiggs County, Bordering counties
26.5%at or above 4 pCi/L
Median 2.0 pCi/L · 34 tests
16.1%at or above 4 pCi/L
Median 0.9 pCi/L · 31 tests
8.2%at or above 4 pCi/L
Median 1.5 pCi/L · 61 tests
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 96 tests
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 3 tests
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
Twiggs County, Cities and towns
Twiggs County has been losing residents: from 8,009 in 2020 to 7,597 on July 1, 2025, a fall of 5.1% by the Census Bureau's estimates. That works out to 21 people per square mile of land. No town dominates: Jeffersonville, the largest, has 907 residents, 11.9% of the total. Reported testing is thin here: 3 tests over 2007 to 2016, or 0.4 for every 1,000 residents (2025 estimate), where Georgia as a whole comes to 2.6.
From Jeffersonville to Danville, CDC publishes no figure by town: each reads Twiggs County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Jeffersonville | 907 | −6.0% | 11.9% |
| Allentownextends beyond Twiggs County | 192 | −2.5% | Counted whole |
| Danvilleextends beyond Twiggs County | 161 | −6.9% | Counted whole |
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). A place that extends beyond Twiggs County is counted whole, so it has no share.
Twiggs County, Homes
Of Twiggs County's 4,053 homes, 60% are detached houses, against 66% across Georgia; 37% are mobile homes. Half of its homes were built before 1985, close to Georgia's 1991: 15% date from before 1960 and 18% from 2000 or later. Owners live in 90% of the occupied homes (Georgia: 65%), so for most households a test and a fix are their own to order.
| Homes | Twiggs County | Georgia |
|---|---|---|
| Housing units | 4,053 | 4,483,873 |
| Detached houses | 60% | 66% |
| In buildings of 5 or more | 1% | 16% |
| Mobile homes | 37% | 8% |
| Built before 1960 | 15% | 12% |
| Built since 2000 | 18% | 33% |
| Middle year built | 1985 | 1991 |
| Owner-occupied | 90% | 65% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.