
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
EPA puts Yadkin County in Zone 2, its middle radon zone, and only 1 radon test from it is on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
28.6%
6.0 pts above NC
199 tests, 2008 to 2017
Median result
2.2pCi/L
Below action level
Midpoint of the tests, 2008 to 2017
Tests reported
199
47th 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
25 of 75
Middle half
By share, of 75 with 30+ tests
Read a result for Yadkin County
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
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Yadkin County's median reported result, 2008 to 2017.
The data
Yadkin County, At a glance
Predicted: EPA radon zone
Yadkin County is a
USGS geologic potential: Moderate across 97% 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 | 21.6% |
| 2020 | 21.7% |
| 2021 | 0.0% |
| 2022 | 0.0% |
2022: 0.0%. Across these years the share ran from 0.0% to 21.7%. Each column counts radon tests reported to CDC that year, not homes.
Only 1 test was reported to CDC for Yadkin County over 2022, 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: 2022. Measured data period: 2005 to 2022 (every CDC figure on file).
Yadkin County, Compared
Yadkin County's 199 reported tests over the 2008 to 2017 laboratory totals had a middle value of 2.2 pCi/L and a maximum of 50.9 pCi/L, and 28.6% reached 4 pCi/L. North Carolina as a whole (99 North Carolina counties, pooled) comes to 22.6%: 6.0 points lower than here.
The newest figure, in 2022, counts only 1 test (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 199-test figure.
Among its state's counties it ranks 25th of 75 North Carolina counties with 30 or more tests for the same period. Statewide for the same period, Transylvania County reported the highest share (47.8%) and Nash County the lowest (0.0%).
Below the action level, 90 tests (45.2%) came in under 2 pCi/L, against 55.6% statewide, and 52 tests (26.1%) fell between 2 and 4, against 21.8% statewide. The busiest year on file was 2014, with 51 tests reported; the quietest, 2022, had 1.
EPA's 1993 zone map puts Yadkin County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 97% of the county's land moderate radon potential.
Next door, the shares run from 17.4% in Davie County to 44.3% in Wilkes County, with Iredell County and Davie County below Yadkin County.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Yadkin County, Geology
Most of the ground under Yadkin County is one class on USGS's geologic map: 96.8% of its land is moderate radon potential, with 3.2% low. 96.8% of it lies in the area the map calls Inner Piedmont Belt, to which USGS gives a radon index of 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Inner Piedmont Belt | Proterozoic through Cambrian biotite gneiss and schist, and mica schist. | Moderate | 11 | 96.8% |
| Davie Basin | Fluvial arkosic sandstone, siltstone, and alluvial fan conglomerates. | Low | 8 | 1.9% |
| Charlotte Belt | Igneous rocks, including granite, gabbro, and diorite. | Low | 8 | 1.3% |
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 Yadkin County's is. Of the 5 counties that border it, 2 have more moderate-potential ground, Wilkes County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Yadkin 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
Yadkin County, Questions
In 2022, 0.0% of the radon tests reported to CDC for Yadkin 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, 24 reported a higher share; pooled, the state comes to 22.6%.
Yadkin County borders 5 counties: Surry County, Davie County, Forsyth County, Wilkes County and Iredell County.
Products
Yadkin County, Products
In Yadkin County, 28.6% of 199 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 Yadkin County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Yadkin County, Bordering counties
44.3%at or above 4 pCi/L
Median 3.5 pCi/L · 402 tests · 15.7 points above Yadkin County
33.3%at or above 4 pCi/L
Median 2.4 pCi/L · 855 tests · 4.7 points above Yadkin County
28.9%at or above 4 pCi/L
Median 2.3 pCi/L · 6,273 tests · 0.3 points above Yadkin County
21.8%at or above 4 pCi/L
Median 1.8 pCi/L · 1,146 tests · 6.8 points below Yadkin County
17.4%at or above 4 pCi/L
Median 1.7 pCi/L · 694 tests · 11.2 points below Yadkin County
Yadkin County, Cities and towns
The Census Bureau estimates 38,325 residents in Yadkin County for July 1, 2025, 1,075 more than in 2020 (+2.9%). That works out to 114 people per square mile of land. No town dominates: Yadkinville, the largest, has 3,055 residents, 8.0% of the total. Together its 4 incorporated places hold 18.9% of those residents; the other 81.1% live outside any of them. CDC's 199 reported tests for 2008 to 2017 work out to 5.2 per 1,000 residents (2025 estimate), close to North Carolina's 6.5.
From Yadkinville to East Bend, CDC publishes no figure by town: each reads Yadkin County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Yadkinville | 3,055 | +2.0% | 8.0% |
| Jonesville | 2,356 | +2.2% | 6.1% |
| Boonville | 1,203 | +2.3% | 3.1% |
| East Bend | 646 | +2.4% | 1.7% |
4 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).
Yadkin County, Homes
Of Yadkin County's 17,165 homes, 72% are detached houses, against 65% across North Carolina; 21% are mobile homes. The homes are older than North Carolina's as a whole: half were built before 1981 (1990 for North Carolina), and 20% date from before 1960. Owners live in 77% of the occupied homes (North Carolina: 66%), so for most households a test and a fix are their own to order.
| Homes | Yadkin County | North Carolina |
|---|---|---|
| Housing units | 17,165 | 4,815,195 |
| Detached houses | 72% | 65% |
| In buildings of 5 or more | 3% | 14% |
| Mobile homes | 21% | 11% |
| Built before 1960 | 20% | 14% |
| Built since 2000 | 16% | 33% |
| Middle year built | 1981 | 1990 |
| Owner-occupied | 77% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.