
Short-term kit![]()
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
EPA puts Vance County in Zone 2, its middle radon zone, and only 1 radon test from it is on file with CDC (2021). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
14.7%
7.9 pts below NC
109 tests, 2008 to 2017
Median result
1.5pCi/L
Below action level
Midpoint of the tests, 2008 to 2017
Tests reported
109
56th of 75 by tests
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in NC
48 of 75
Middle half
By share, of 75 with 30+ tests
Read a result for Vance County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.5 pCi/L
Below 2 pCi/L
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Vance County's median reported result, 2008 to 2017.
The data
Vance County, At a glance
Predicted: EPA radon zone
Vance County is a
USGS geologic potential: Moderate across 63% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 25.0% |
| 2020 | 10.0% |
| 2021 | 0.0% |
2021: 0.0%. Across these years the share ran from 0.0% to 25.0%. Each column counts radon tests reported to CDC that year, not homes.
Only 1 test was reported to CDC for Vance County over 2021, 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: 2021. Measured data period: 2005 to 2021 (every CDC figure on file).
Vance County, Compared
Vance County reports fewer high tests than North Carolina overall. 14.7% of its 109 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 7.9 points below the 22.6% pooled from 99 North Carolina counties.
The newest figure, in 2021, counts only 1 test (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 109-test figure.
Ordered from highest share down, it comes 48th of 75 North Carolina counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Vance County sits 21.0 points below it.
Next door, the shares run from 10.5% in Granville County to 42.7% in Warren County, with Granville County below Vance County. Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 14.7% share point the same way here.
Half the tests came in under 1.5 pCi/L and half over it; the single highest reached 14.2 pCi/L. The rest split 62.4% under 2 pCi/L and 22.9% from 2 to 4 (North Carolina: 55.6% and 21.8%).
The busiest year on file was 2014, with 16 tests reported; the quietest, 2021, had 1.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Vance County, Geology
USGS's geologic map splits Vance County: 63.3% of its land is moderate radon potential and 36.7% low. The map puts 63.2% of Vance County in the area it calls Raleigh Belt and 36.7% in Carolina Slate Belt. USGS gives the first a radon index of 11, in the moderate band (9 to 11), and the second 6, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Raleigh Belt | Proterozoic through Cambrian biotite gneiss and mica schist. | Moderate | 11 | 63.2% |
| Carolina Slate Belt | Felsic metavolcanics, intermediate volcanics, metamudstone, argillite, and epiclastic rocks. | Low | 6 | 36.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across North Carolina 1.3% of the land is rated high; none of Vance County's is. Of the 4 counties that border it, 1 has more high-potential ground, Mecklenburg County, VA the most at 38.4%.
The map rates the ground, not the air in any home.
Local help
Vance County, Local resources
The North Carolina Radon Program is presently developing a Radon Proficiency Program as directed by Session Law 2023-91 House Bill 782 .
What it means
Vance County, Questions
In 2021, 0.0% of the radon tests reported to CDC for Vance County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.0 pCi/L. Of 75 North Carolina counties with 30 or more tests for the same period, 47 reported a higher share; pooled, the state comes to 22.6%.
Vance County borders 4 counties: Granville County, NC, Warren County, NC, Franklin County, NC and Mecklenburg County, VA.
Products
Vance County, Products
In Vance County, 14.7% of 109 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 22.6% pooled across North Carolina. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Vance County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Vance County, Bordering counties
42.7%at or above 4 pCi/L
Median 3.0 pCi/L · 82 tests · 28.0 points above Vance County
37.9%at or above 4 pCi/L
Median 3.0 pCi/L · 66 tests · 23.2 points above Vance County
19.1%at or above 4 pCi/L
Median 1.4 pCi/L · 204 tests · 4.4 points above Vance County
10.5%at or above 4 pCi/L
Median 0.8 pCi/L · 153 tests · 4.2 points below Vance County
Vance County, Cities and towns
Vance County's population has barely moved since 2020: 42,638 residents on July 1, 2025 against 42,554 then, by the Census Bureau's estimates. That works out to 169 people per square mile of land. Its largest town, Henderson, has 15,013 residents, 35.2% of the total. Together its 3 incorporated places hold 35.7% of those residents; the other 64.3% live outside any of them. Reported testing is thin here: 109 tests over 2008 to 2017, or 2.6 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 6.5.
From Henderson to Middleburg, CDC publishes no figure by town: each reads Vance County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Henderson | 15,013 | −0.8% | 35.2% |
| Kittrell | 127 | −0.8% | 0.3% |
| Middleburg | 98 | Level | 0.2% |
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).
Vance County, Homes
Of Vance County's 19,423 homes, 62% are detached houses, against 65% across North Carolina; 25% are mobile homes. The homes are older than North Carolina's as a whole: half were built before 1981 (1990 for North Carolina), and 21% date from before 1960. 57% of occupied homes are lived in by their owner (North Carolina: 66%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Vance County | North Carolina |
|---|---|---|
| Housing units | 19,423 | 4,815,195 |
| Detached houses | 62% | 65% |
| In buildings of 5 or more | 6% | 14% |
| Mobile homes | 25% | 11% |
| Built before 1960 | 21% | 14% |
| Built since 2000 | 17% | 33% |
| Middle year built | 1981 | 1990 |
| Owner-occupied | 57% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.