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
Radon Levels in Long County, Georgia
EPA puts Long 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, 40 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
- Long
- 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
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Long 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
Long County, At a glance
Long 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
No CDC test figures here
CDC has published no radon test figures for Long County. Chatham County, 40 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
Long County, Compared
Long County radon figures, compared
Calculated by Radon411No CDC figure names Long County, in any year or ten-year total; over the 2007 to 2016 laboratory totals, the agency's counts reach 137 Georgia counties without 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 (40 miles away) at 0.0%, Laurens County (85 miles away) at 16.1% and Richmond County (112 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 Long 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.
Long County, Geology
The ground under Long County
PredictedUSGS's geologic map puts all of Long County's mapped land in one class: low radon potential. 96.0% of it lies in the area the map calls Coastal Plain, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coastal Plain | Quaternary and Pleistocene-Pliocene coastal sand and gravel, lagoon and marsh clay and silt. | Low | 7 | 96.0% |
| 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 | 4.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Long County beside the ground around it
Across Georgia 26.5% of the land is rated moderate; none of Long County's is. None of the 4 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Long County, Local resources
Radon testing and mitigation in Long 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
Long County, Questions
Questions about radon in Long County
Are radon levels high in Long County?
No CDC testing statistics are published here for Long County, Georgia yet. Of the 8 nearest counties with a figure, within 144 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 27.3%.
Which counties border Long County?
Long County borders 4 counties: Wayne County, Liberty County, Tattnall County and McIntosh County.
Products
Long County, Products
Testing a home in Long County
No CDC figure names Long County; the nearest county with one, Chatham County (40 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 Long County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorForensics Detectors
FD-65-RADON rechargeable radon detector with a color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Long County, Bordering counties
Counties bordering Long County
Calculated by Radon411- Radon levels in Wayne CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 3 tests
- Radon levels in Liberty CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 12 tests
- Radon levels in McIntosh CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 7 tests
- Radon levels in Tattnall CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Long County, Cities and towns
Cities and towns in Long County
Long County is growing: the Census Bureau puts it at 21,557 residents on July 1, 2025, up 32.6% from 16,256 in 2020. That works out to 54 people per square mile of land. Ludowici, its one incorporated place, has 1,933 residents, 9.0% of the total. CDC publishes no radon test count for Long County; across Georgia its counts for 2007 to 2016 come to 2.6 tests for every 1,000 residents (2025 estimate).
Ludowici is the one incorporated place here; CDC publishes no figure by town, so it reads Long County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Ludowici | 1,933 | +27.5% | 9.0% |
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).
Long County, Homes
Homes in Long County
Of Long County's 6,605 homes, 60% are detached houses, against 66% across Georgia; 34% are mobile homes. Half of its homes were built before 1998, close to Georgia's 1991: 9% date from before 1960 and 46% from 2000 or later. 63% 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 | Long County | Georgia |
|---|---|---|
| Housing units | 6,605 | 4,483,873 |
| Detached houses | 60% | 66% |
| In buildings of 5 or more | 5% | 16% |
| Mobile homes | 34% | 8% |
| Built before 1960 | 9% | 12% |
| Built since 2000 | 46% | 33% |
| Middle year built | 1998 | 1991 |
| Owner-occupied | 63% | 65% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.