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
Radon Levels in Richmond County, Georgia
EPA puts Richmond County in Zone 2, its middle radon zone, and most reported tests there come back low, though 0.0% of 32 (2008 to 2017, laboratory totals) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
0.0%
24.8 pts below GA
- Richmond
- 0.0%
- Georgia
- 24.8%
32 tests, 2008 to 2017
Median result
1.4pCi/L
Below action level
- Richmond
- 1.4 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
32
55th of 57 by tests
- Richmond
- 32
- Fulton
- 4,858
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Georgia
56 of 57
Lowest quarter
- Richmond
- 0.0%
- Barrow
- 48.3%
By share, of 57 with 30+ tests
Read a result for Richmond County
Starts at Richmond County's median, 1.4 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.4 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Richmond County's median reported result, 2008 to 2017.
The data
Richmond County, At a glance
Richmond County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Richmond County is a
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 Richmond County, 2008 to 2017, laboratory
Under 2 pCi/L: 75%2 to 4 pCi/L: 25%4 pCi/L and above: 0%
Of 32 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 24 | 75.0% |
| 2 to 4 pCi/L | 8 | 25.0% |
| 4 pCi/L and above | 0 | 0.0% |
What these figures count
These are the 32 tests reported to CDC for Richmond County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Richmond County, Compared
Richmond County radon figures, compared
Calculated by Radon411Only 0 of 32 radon tests reported for Richmond County over the 2008 to 2017 laboratory totals reached 4 pCi/L (0.0%). The median result, 1.4 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 3.2 pCi/L.
Across 129 Georgia counties pooled together, 24.8% of tests reached that level, so Richmond County runs 24.8 points below its state. Against the national pool of 35.7%, the gap is 35.7 points lower. Its place in the state: 56th of 57 Georgia counties with 30 or more tests for the same period.
The reported tests do not follow EPA's Zone 2 label for Richmond County (predicted average between 2 and 4 pCi/L): 0.0% of them reached 4 pCi/L, fewer than that label suggests. Of 2 neighbours with a figure, all 2 reported a larger share at or above 4 pCi/L; the spread is 11.1% (Columbia County) to 13.3% (Aiken County, SC).
Below the action level, 24 tests (75.0%) came in under 2 pCi/L, against 44.0% statewide, and 8 tests (25.0%) fell between 2 and 4, against 31.2% statewide. USGS geology rates 100% of the county's land low radon potential.
CDC's ten-year totals for Richmond County went from 58 tests (2005 to 2014) to 32 (2008 to 2017), the share going from 0.0% to 0.0%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Richmond County, Geology
The ground under Richmond County
PredictedUSGS's geologic map puts all of Richmond County's mapped land in one class: low radon potential. 97.9% 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 | 97.9% |
| Little River Thrust Stack | Biotite and amphibolite gneiss, granite gneiss, mica schist. | Low | 7 | 1.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Richmond County beside the ground around it
Across Georgia 26.5% of the land is rated moderate; none of Richmond County's is. Of the 6 counties that border it, 1 has more moderate-potential ground, Edgefield County, SC the most at 1.2%.
The map rates the ground, not the air in any home.
Local help
Richmond County, Local resources
Radon testing and mitigation in Richmond 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
Richmond County, Questions
Questions about radon in Richmond County
Are radon levels high in Richmond County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Richmond County, Georgia were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.4 pCi/L. Of 57 Georgia counties with 30 or more tests for the same period, 55 reported a higher share; pooled, the state comes to 24.8%.
Which counties border Richmond County?
Richmond County borders 6 counties: Columbia County, GA, McDuffie County, GA, Burke County, GA, Edgefield County, SC, Jefferson County, GA and Aiken County, SC.
Products
Richmond County, Products
Testing a home in Richmond County
In Richmond County, 0.0% of 32 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 24.8% pooled across Georgia. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Richmond County; a long-term test tells the year-round average.
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
Monitor
RM-63Pro rechargeable radon monitor with a touchscreen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Richmond County, Bordering counties
Counties bordering Richmond County
Calculated by Radon411- Radon levels in Edgefield County, SCEPA zone 3
25.0%at or above 4 pCi/L
Median 1.2 pCi/L · 12 tests · 25.0 points above Richmond County
- Radon levels in Aiken County, SCEPA zone 3
13.3%at or above 4 pCi/L
Median 1.3 pCi/L · 241 tests · 13.3 points above Richmond County
- Radon levels in Columbia County, GAEPA zone 3
11.1%at or above 4 pCi/L
Median 0.9 pCi/L · 63 tests · 11.1 points above Richmond County
- Radon levels in McDuffie County, GAEPA zone 3
8.3%at or above 4 pCi/L
Median 0.9 pCi/L · 12 tests · 8.3 points above Richmond County
- Radon levels in Burke County, GAEPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 4 tests · 0.0 points above Richmond County
- Radon levels in Jefferson County, GAEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 3 tests · 0.0 points above Richmond County
Richmond County, Cities and towns
Cities and towns in Richmond County
Richmond County's population has barely moved since 2020: 206,559 residents on July 1, 2025 against 206,581 then, by the Census Bureau's estimates. That works out to 637 people per square mile of land. No town dominates: Hephzibah, the largest, has 3,815 residents, 1.8% of the total. Reported testing is thin here: 32 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 Hephzibah to Blythe, CDC publishes no figure by town: each reads Richmond County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Hephzibah | 3,815 | −0.2% | 1.8% |
| Blytheextends beyond Richmond County | 798 | +5.6% | Counted whole |
2 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 Richmond County is counted whole, so it has no share.
Richmond County, Homes
Homes in Richmond County
Of Richmond County's 92,652 homes, 59% are detached houses, against 66% across Georgia; 20% are in buildings of five or more homes. The homes are older than Georgia's as a whole: half were built before 1980 (1991 for Georgia), and 22% date from before 1960. 51% 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 | Richmond County | Georgia |
|---|---|---|
| Housing units | 92,652 | 4,483,873 |
| Detached houses | 59% | 66% |
| In buildings of 5 or more | 20% | 16% |
| Mobile homes | 7% | 8% |
| Built before 1960 | 22% | 12% |
| Built since 2000 | 21% | 33% |
| Middle year built | 1980 | 1991 |
| Owner-occupied | 51% | 65% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.