Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Halifax County, Virginia
EPA puts Halifax County in Zone 2, its middle radon zone, and 18.9% of its 37 reported radon tests (2008 to 2017, laboratory totals) were at or above 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
18.9%
11.5 pts below VA
- Halifax
- 18.9%
- Virginia
- 30.4%
37 tests, 2008 to 2017
Median result
2.2pCi/L
Below action level
- Halifax
- 2.2 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
37
81st of 84 by tests
- Halifax
- 37
- Fairfax
- 8,657
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 Virginia
71 of 84
Lowest quarter
- Halifax
- 18.9%
- Russell
- 67.3%
By share, of 84 with 30+ tests
Read a result for Halifax County
Starts at Halifax County's median, 2.2 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.2 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Halifax County's median reported result, 2008 to 2017.
The data
Halifax County, At a glance
Halifax County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Halifax County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Halifax County, 2008 to 2017, laboratory
Under 2 pCi/L: 46%2 to 4 pCi/L: 35%4 pCi/L and above: 19%
Of 37 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 17 | 45.9% |
| 2 to 4 pCi/L | 13 | 35.1% |
| 4 pCi/L and above | 7 | 18.9% |
What these figures count
These are the 37 tests reported to CDC for Halifax 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).
Halifax County, Compared
Halifax County radon figures, compared
Calculated by Radon411Halifax County's 37 reported tests over the 2008 to 2017 laboratory totals had a middle value of 2.2 pCi/L and a maximum of 11.1 pCi/L, and 18.9% reached 4 pCi/L. Virginia as a whole (131 Virginia counties, pooled) comes to 30.4%: 11.5 points higher than here.
Among its state's counties it ranks 71st of 84 Virginia counties with 30 or more tests for the same period. Statewide for the same period, Russell County reported the highest share (67.3%) and Norfolk city the lowest (2.7%).
Below the action level, 17 tests (45.9%) came in under 2 pCi/L, against 44.7% statewide, and 13 tests (35.1%) fell between 2 and 4, against 24.9% statewide. CDC's ten-year totals for Halifax County went from 26 tests (2005 to 2014) to 37 (2008 to 2017), the share going from 23.1% to 18.9%.
EPA's 1993 zone map puts Halifax County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Next door, the shares run from 10.5% in Granville County, NC to 39.7% in Campbell County, with Person County, NC, Caswell County, NC and Granville County, NC below Halifax County.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Halifax County, Geology
The ground under Halifax County
PredictedMost of the ground under Halifax County is one class on USGS's geologic map: 99.8% of its land is moderate radon potential, with 0.2% low. 97.6% of it lies in the area the map calls Carolina Terrane, to which USGS gives a radon index of 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Carolina Terrane | Metavolcanic rocks, granite and granitic gneiss. | Moderate | 10 | 97.6% |
| Mesozoic Basins | Sandstone, siltstone and lacustrine black shale. | Moderate | 11 | 1.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Halifax County beside the ground around it
Across Virginia 47.9% of the land is rated high; none of Halifax County's is. Of the 7 counties that border it, 3 have more high-potential ground, Campbell County the most at 66.1%.
The map rates the ground, not the air in any home.
Local help
Halifax County, Local resources
Radon testing and mitigation in Halifax County
- VDH Radon ProgramVDH Radon Program answers questions about testing, mitigation and the rules in Virginia.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- Professionals in Virginia2 professionals are listed in Virginia.
What Virginia's program says
- Phone
- (804) 864-8161
- Radon@vdh.virginia.gov
- Licensing of radon professionals
The Code of Virginia requires that Radon testers and mitigators be currently certified by either the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB).
What it means
Halifax County, Questions
Questions about radon in Halifax County
Are radon levels high in Halifax County?
Over the 2008 to 2017 laboratory totals, 18.9% of the radon tests reported to CDC for Halifax County, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.2 pCi/L. Of 84 Virginia counties with 30 or more tests for the same period, 70 reported a higher share; pooled, the state comes to 30.4%.
Which counties border Halifax County?
Halifax County borders 7 counties: Charlotte County, VA, Pittsylvania County, VA, Person County, NC, Campbell County, VA, Mecklenburg County, VA, Granville County, NC and Caswell County, NC.
Products
Halifax County, Products
Testing a home in Halifax County
In Halifax County, 18.9% of 37 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 30.4% pooled across Virginia. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Halifax 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
MonitorINKBIRD
INK-RD3 battery radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Halifax County, Bordering counties
Counties bordering Halifax County
Calculated by Radon411- Radon levels in Charlotte County, VAEPA zone 2
40.0%at or above 4 pCi/L
Median 3.7 pCi/L · 20 tests · 21.1 points above Halifax County
- Radon levels in Campbell County, VAEPA zone 1
39.7%at or above 4 pCi/L
Median 3.2 pCi/L · 365 tests · 20.8 points above Halifax County
- Radon levels in Pittsylvania County, VAEPA zone 1
38.4%at or above 4 pCi/L
Median 3.0 pCi/L · 242 tests · 19.5 points above Halifax County
- Radon levels in Mecklenburg County, VAEPA zone 2
37.9%at or above 4 pCi/L
Median 3.0 pCi/L · 66 tests · 19.0 points above Halifax County
- Radon levels in Person County, NCEPA zone 3
17.4%at or above 4 pCi/L
Median 1.3 pCi/L · 190 tests · 1.5 points below Halifax County
- Radon levels in Caswell County, NCEPA zone 2
14.9%at or above 4 pCi/L
Median 1.6 pCi/L · 47 tests · 4.0 points below Halifax County
- Radon levels in Granville County, NCEPA zone 3
10.5%at or above 4 pCi/L
Median 0.8 pCi/L · 153 tests · 8.4 points below Halifax County
Halifax County, Cities and towns
Cities and towns in Halifax County
About 33,447 people live in Halifax County by the Census Bureau's estimate for July 1, 2025, 492 fewer than in 2020 (−1.4%). That works out to 41 people per square mile of land. Its largest town, South Boston, has 7,795 residents, 23.3% of the total. Reported testing is thin here: 37 tests over 2008 to 2017, or 1.1 for every 1,000 residents (2025 estimate), where Virginia as a whole comes to 6.0.
From South Boston to Virgilina, CDC publishes no figure by town: each reads Halifax County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| South Boston | 7,795 | −1.9% | 23.3% |
| Clarksvilleextends beyond Halifax County | 1,303 | +0.2% | Counted whole |
| Halifax | 1,092 | −1.9% | 3.3% |
| Scottsburg | 123 | −2.4% | 0.4% |
| Virgilina | 122 | −2.4% | 0.4% |
5 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 Halifax County is counted whole, so it has no share.
Halifax County, Homes
Homes in Halifax County
Of Halifax County's 17,382 homes, 72% are detached houses, against 61% across Virginia; 20% are mobile homes. The homes are older than Virginia's as a whole: half were built before 1974 (1984 for Virginia), and 29% date from before 1960. 71% of occupied homes are lived in by their owner (Virginia: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Halifax County | Virginia |
|---|---|---|
| Housing units | 17,382 | 3,654,784 |
| Detached houses | 72% | 61% |
| In buildings of 5 or more | 4% | 19% |
| Mobile homes | 20% | 4% |
| Built before 1960 | 29% | 19% |
| Built since 2000 | 14% | 25% |
| Middle year built | 1974 | 1984 |
| Owner-occupied | 71% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.