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Radon Levels in Yadkin County, North Carolina

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

    Yadkin
    28.6%
    NC
    22.6%

    199 tests, 2008 to 2017

  • Median result

    2.2pCi/L

    Below action level

    Yadkin
    2.2 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    199

    47th of 75 by tests

    Yadkin
    199
    Wake
    9,694

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

  • Rank in NC

    25 of 75

    Middle half

    Yadkin
    28.6%
    Transylvania
    47.8%

    By share, of 75 with 30+ tests

Read a result for Yadkin County

Starts at Yadkin County's median, 2.2 pCi/L

2.2pCi/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

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 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. Yadkin County's median reported result, 2008 to 2017.

The data

Yadkin County, At a glance

Yadkin County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Yadkin County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

USGS geologic potential: Moderate across 97% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Yadkin County, 2022

Share of reported tests at or above 4 pCi/L, by year, Yadkin County
Share of reported tests at or above 4 pCi/L, by year, Yadkin County
YearShare of reported tests at or above 4 pCi/L
201421.6%
202021.7%
20210.0%
20220.0%

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.

What these figures count

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).

How to read these figures

Yadkin County, Compared

Yadkin County radon figures, compared

Calculated by Radon411

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.

Yadkin County against North Carolina, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Yadkin County
Yadkin County19928.6%2.2 pCi/LThis county
North Carolina, pooled99 counties, pooled73,13922.6%Not pooled−6.0 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+7.1 points
Transylvania Countyhighest in the state3,86247.8%3.7 pCi/L+19.2 points
Nash Countylowest in the state300.0%0.2 pCi/L−28.6 points
Wilkes County, NCborders it40244.3%3.5 pCi/L+15.7 points
Surry County, NCborders it85533.3%2.4 pCi/L+4.7 points
Forsyth County, NCborders it6,27328.9%2.3 pCi/L+0.3 points
Iredell County, NCborders it1,14621.8%1.8 pCi/L−6.8 points
Davie County, NCborders it69417.4%1.7 pCi/L−11.2 points
Where Yadkin County's reported results fell, 2008 to 2017, laboratory, beside North Carolina and the United States
ResultYadkin County testsYadkin County shareNorth Carolina shareU.S. shareAgainst North Carolina
Under 2 pCi/L9045.2%55.6%39.6%−10.4 points
2 to 4 pCi/L5226.1%21.8%24.7%+4.3 points
4 pCi/L and above5728.6%22.6%35.7%+6.0 points
Yadkin County ranked among the 75 North Carolina counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Haywood County20 of 751,87230.6%2.2 pCi/L
Polk County21 of 7559429.8%2.4 pCi/L
Buncombe County22 of 756,35929.0%2.3 pCi/L
Lincoln County23 of 7570829.0%2.4 pCi/L
Forsyth County24 of 756,27328.9%2.3 pCi/L
Yadkin County25 of 7519928.6%2.2 pCi/L
Mitchell County26 of 7543328.6%2.1 pCi/L
Burke County27 of 7594028.3%2.4 pCi/L
Jackson County28 of 751,02627.7%2.2 pCi/L
Caldwell County29 of 7586127.6%2.5 pCi/L
Rockingham County30 of 7583527.3%2.1 pCi/L
Yadkin County radon tests by year, against North Carolina's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNorth Carolina, pooledChange from the row before
202210.0%1.0 pCi/L1.0 pCi/L10.7%Level
202180.0%1.0 pCi/L2.0 pCi/L14.9%−21.7 points
20202321.7%2.0 pCi/L14.0 pCi/L21.1%+0.1 points
20145121.6%2.0 pCi/L8.0 pCi/L21.9%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Yadkin County, Geology

The ground under Yadkin County

Predicted

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).

USGS's geologic areas under Yadkin County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Inner Piedmont BeltProterozoic through Cambrian biotite gneiss and schist, and mica schist.Moderate1196.8%
Davie BasinFluvial arkosic sandstone, siltstone, and alluvial fan conglomerates.Low81.9%
Charlotte BeltIgneous rocks, including granite, gabbro, and diorite.Low81.3%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Yadkin County beside the ground around it

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%.

Share of land by USGS radon potential: Yadkin County, the 5 counties bordering it and North Carolina
AreaEPA zoneLow potentialModerate potentialHigh potential
Yadkin CountyZone 23.2%96.8%None
Surry CountyZone 2None100%None
Davie CountyZone 392.3%7.7%None
Forsyth CountyZone 223.7%76.3%None
Wilkes CountyZone 2None100%None
Iredell CountyZone 232.4%67.6%None
North Carolina100 counties, pooled by land areaVaries64.8%33.0%1.3%

The map rates the ground, not the air in any home.

What it means

Yadkin County, Questions

Questions about radon in Yadkin County

Are radon levels high in Yadkin County?

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%.

Which counties border Yadkin County?

Yadkin County borders 5 counties: Surry County, Davie County, Forsyth County, Wilkes County and Iredell County.

Products

Yadkin County, Products

Testing a home in Yadkin County

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 monitors3

See every kit and monitor

Best radon monitors for Yadkin County homes, compared

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Yadkin County, Bordering counties

Counties bordering Yadkin County

Calculated by Radon411

Yadkin County, Cities and towns

Cities and towns in Yadkin County

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.

The cities and towns in Yadkin County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Yadkinville3,055+2.0%8.0%
Jonesville2,356+2.2%6.1%
Boonville1,203+2.3%3.1%
East Bend646+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

Homes in Yadkin County

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 in Yadkin County, North Carolina, 2019 to 2023
HomesYadkin CountyNorth Carolina
Housing units17,1654,815,195
Detached houses72%65%
In buildings of 5 or more3%14%
Mobile homes21%11%
Built before 196020%14%
Built since 200016%33%
Middle year built19811990
Owner-occupied77%66%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.