Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Hampton County, South Carolina
EPA puts Hampton County in Zone 3, its lowest radon zone, and only 6 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
2.0%
Beaufort County
- Beaufort
- 2.0%
1 of 7 neighbours have 30+ tests, 2008 to 2017
Nearest county
2.0%
Beaufort County, 36 miles
- Beaufort
- 2.0%
- SC
- 19.4%
Share at 4+ pCi/L, 246 tests, 2008 to 2017
Ground above low
None
18.5 pts below SC
- Hampton
- 0.0%
- SC
- 18.5%
Share of land USGS rates moderate or high potential
Tests reported
6
Too few for a share
- Hampton
- 6
- Needed
- 30
2008 to 2017, 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 Hampton 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
Hampton County, At a glance
Hampton 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 Hampton County, 2008 to 2017, laboratory
CDC holds 6 reported tests for Hampton County over the 2008 to 2017 laboratory totals, with a median of 0.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Hampton County beside the counties around it is how this page reads it.
What these figures count
Only 6 tests were reported to CDC for Hampton 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).
Hampton County, Compared
Hampton County radon figures, compared
Calculated by Radon411CDC's largest figure for Hampton County rests on 6 tests over the 2008 to 2017 laboratory totals, 0 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 0.9 pCi/L, with a middle value of 0.1 pCi/L.
Beaufort County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 2.0% of its tests at or above 4 pCi/L. Farther out, Dorchester County (47 miles away) at 4.8%, Orangeburg County (50 miles away) at 5.7% and Aiken County (60 miles away) at 13.3% have figures too. Pooled across 46 South Carolina counties, 19.4% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Oconee County reported the highest share (42.6%) and Florence County the lowest (0.0%). EPA's 1993 map puts Hampton 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.
Hampton County, Geology
The ground under Hampton County
PredictedUSGS's geologic map puts all of Hampton County's mapped land in one class: low radon potential. 96.3% of it lies in the area the map calls Lower 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 |
|---|---|---|---|---|
| Lower Coastal Plain | Dune, beach, and marine sediments. | Low | 7 | 96.3% |
| Upper and Middle Coastal Plain | Tertiary coastal plain sandy and silty sediments and marsh deposits. | Low | 8 | 3.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Hampton County beside the ground around it
Across South Carolina 0.2% of the land is rated high; none of Hampton County's is. None of the 7 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Hampton County, Local resources
Radon testing and mitigation in Hampton County
- South Carolina Radon ProgramSouth Carolina Radon Program, run by South Carolina Department of Environmental Services, offers free or discounted test kits, and answers questions about testing and mitigation in South Carolina.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The South Carolina Radon Program offers free short-term radon test kits to South Carolina homeowners, subject to availability.
- Compare kits
- Professionals in South Carolina2 professionals are listed in South Carolina.
What South Carolina's program says
- Phone
- 1-800-768-0362
- radon@des.sc.gov
What it means
Hampton County, Questions
Questions about radon in Hampton County
Are radon levels high in Hampton County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Hampton County, South Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Beaufort County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 2.0% of its tests at or above 4 pCi/L.
Which counties border Hampton County?
Hampton County borders 7 counties: Allendale County, SC, Colleton County, SC, Jasper County, SC, Bamberg County, SC, Screven County, GA, Effingham County, GA and Beaufort County, SC.
Products
Hampton County, Products
Testing a home in Hampton County
No CDC figure names Hampton County; the nearest county with one, Beaufort County (36 miles away), reported 2.0% of its tests at or above 4 pCi/L over the 2008 to 2017 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 Hampton 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
MonitorAEGTEST
HOUND-1085 palm-sized rechargeable radon detector
- 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
Hampton County, Bordering counties
Counties bordering Hampton County
Calculated by Radon411- Radon levels in Colleton County, SCEPA zone 3
9.1%at or above 4 pCi/L
Median 0.1 pCi/L · 11 tests
- Radon levels in Bamberg County, SCEPA zone 3
5.0%at or above 4 pCi/L
Median 1.0 pCi/L · 20 tests
- Radon levels in Beaufort County, SCEPA zone 3
2.0%at or above 4 pCi/L
Median 0.7 pCi/L · 246 tests
- Radon levels in Allendale County, SCEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
- Radon levels in Jasper County, SCEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 9 tests
- Radon levels in Screven County, GAEPA zone 3
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 3 tests
- Radon levels in Effingham County, GAEPA zone 3
0.0%at or above 4 pCi/L
Median 1.2 pCi/L · 8 tests
Hampton County, Cities and towns
Cities and towns in Hampton County
About 18,174 people live in Hampton County by the Census Bureau's estimate for July 1, 2025, 352 fewer than in 2020 (−1.9%). That works out to 32 people per square mile of land. No town dominates: Hampton, the largest, has 2,598 residents, 14.3% of the total. Reported testing is thin here: 6 tests over 2008 to 2017, or 0.3 for every 1,000 residents (2025 estimate), where South Carolina as a whole comes to 4.8.
From Hampton to Luray, CDC publishes no figure by town: each reads Hampton County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Hampton | 2,598 | −4.1% | 14.3% |
| Estill | 1,778 | −1.9% | 9.8% |
| Varnville | 1,626 | −3.2% | 8.9% |
| Yemasseeextends beyond Hampton County | 1,145 | +1.3% | Counted whole |
| Brunson | 414 | −3.3% | 2.3% |
| Gifford | 262 | −3.0% | 1.4% |
| Furman | 223 | Level | 1.2% |
| Scotia | 160 | −1.2% | 0.9% |
| Luray | 100 | +3.1% | 0.6% |
9 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 Hampton County is counted whole, so it has no share.
Hampton County, Homes
Homes in Hampton County
Of Hampton County's 8,622 homes, 56% are detached houses, against 64% across South Carolina; 36% are mobile homes. Half of its homes were built before 1986, close to South Carolina's 1991: 14% date from before 1960 and 19% from 2000 or later. 74% of occupied homes are lived in by their owner (South Carolina: 71%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Hampton County | South Carolina |
|---|---|---|
| Housing units | 8,622 | 2,401,638 |
| Detached houses | 56% | 64% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 36% | 15% |
| Built before 1960 | 14% | 13% |
| Built since 2000 | 19% | 35% |
| Middle year built | 1986 | 1991 |
| Owner-occupied | 74% | 71% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.