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Radon Levels in Moore County, North Carolina

EPA puts Moore County in Zone 3, its lowest radon zone, and only 2 radon tests from it are on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

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  • Share at 4+ pCi/L

    19.2%

    3.4 pts below NC

    Moore
    19.2%
    NC
    22.6%

    99 tests, 2008 to 2017

  • Median result

    1.3pCi/L

    Below action level

    Moore
    1.3 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    99

    60th of 75 by tests

    Moore
    99
    Wake
    9,694

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

  • Rank in NC

    39 of 75

    Middle half

    Moore
    19.2%
    Transylvania
    47.8%

    By share, of 75 with 30+ tests

Read a result for Moore County

Starts at Moore County's median, 1.3 pCi/L

1.3pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 1.3 pCi/L

Below 2 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 below 2 pCi/L, the level at which EPA says a fix should be considered. Moore County's median reported result, 2008 to 2017.

Interpret this reading

The data

Moore County, At a glance

Moore County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Moore County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

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 Moore County, 2022

Share of reported tests at or above 4 pCi/L, by year, Moore County
Share of reported tests at or above 4 pCi/L, by year, Moore County
YearShare of reported tests at or above 4 pCi/L
20140.0%
202022.4%
20210.0%
20220.0%

2022: 0.0%. Across these years the share ran from 0.0% to 22.4%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

Only 2 tests were reported to CDC for Moore 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

Moore County, Compared

Moore County radon figures, compared

Calculated by Radon411

Moore County's 99 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.3 pCi/L and a maximum of 14.8 pCi/L, and 19.2% reached 4 pCi/L. North Carolina as a whole (99 North Carolina counties, pooled) comes to 22.6%: 3.4 points higher than here.

The newest figure, in 2022, counts only 2 tests (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 99-test figure.

Among its state's counties it ranks 39th 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, 64 tests (64.6%) came in under 2 pCi/L, against 55.6% statewide, and 16 tests (16.2%) fell between 2 and 4, against 21.8% statewide. The busiest year on file was 2020, with 49 tests reported; the quietest, 2022, had 2.

EPA's 1993 zone map puts Moore County in Zone 3, a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.

Next door, the shares run from 0.0% in Richmond County to 20.4% in Montgomery County, with Chatham County, Randolph County and Scotland County below Moore County.

Moore County against North Carolina, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Moore County
Moore County9919.2%1.3 pCi/LThis county
North Carolina, pooled99 counties, pooled73,13922.6%Not pooled+3.4 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+16.5 points
Transylvania Countyhighest in the state3,86247.8%3.7 pCi/L+28.6 points
Nash Countylowest in the state300.0%0.2 pCi/L−19.2 points
Montgomery County, NCborders it10320.4%1.5 pCi/L+1.2 points
Chatham County, NCborders it58710.9%1.1 pCi/L−8.3 points
Randolph County, NCborders it4227.1%0.9 pCi/L−12.1 points
Scotland County, NCborders it313.2%1.0 pCi/L−16.0 points
Cumberland County, NCborders it1601.9%0.7 pCi/L−17.3 points
Lee County, NCborders it931.1%0.9 pCi/L−18.1 points
Harnett County, NCborders it1810.6%0.6 pCi/L−18.6 points
Richmond County, NCborders it520.0%0.6 pCi/L−19.2 points
Hoke County, NCborders it190.0%0.8 pCi/L−19.2 points
Where Moore County's reported results fell, 2008 to 2017, laboratory, beside North Carolina and the United States
ResultMoore County testsMoore County shareNorth Carolina shareU.S. shareAgainst North Carolina
Under 2 pCi/L6464.6%55.6%39.6%+9.0 points
2 to 4 pCi/L1616.2%21.8%24.7%−5.6 points
4 pCi/L and above1919.2%22.6%35.7%−3.4 points
Moore 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
Stanly County34 of 7522925.3%2.2 pCi/L
Catawba County35 of 751,25924.8%2.0 pCi/L
Iredell County36 of 751,14621.8%1.8 pCi/L
Stokes County37 of 7559221.6%1.8 pCi/L
Montgomery County38 of 7510320.4%1.5 pCi/L
Moore County39 of 759919.2%1.3 pCi/L
Franklin County40 of 7520419.1%1.4 pCi/L
Gaston County41 of 7559319.1%1.5 pCi/L
Rowan County42 of 7562617.7%1.4 pCi/L
Davie County43 of 7569417.4%1.7 pCi/L
Person County44 of 7519017.4%1.3 pCi/L
Moore County radon tests by year, against North Carolina's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNorth Carolina, pooledChange from the row before
202220.0%1.0 pCi/L1.0 pCi/L10.7%Level
202160.0%0.6 pCi/L1.0 pCi/L14.9%−22.4 points
20204922.4%1.0 pCi/L10.1 pCi/L21.1%+22.4 points
2014170.0%0.2 pCi/L2.3 pCi/L21.9%First on file

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

Moore County, Geology

The ground under Moore County

Predicted

USGS's geologic map puts all of Moore County's mapped land in one class: low radon potential. The map puts 53.2% of Moore County in the area it calls Inner Coastal Plain and 26.0% in Carolina Slate Belt, with one smaller area beside them. USGS gives the first a radon index of 8 and the second 6, both in the low band (5 to 8).

USGS's geologic areas under Moore County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Inner Coastal PlainFossiliferous clay and sand, shelly sand, sandy marl, and limestone.Low853.2%
Carolina Slate BeltFelsic metavolcanics, intermediate volcanics, metamudstone, argillite, and epiclastic rocks.Low626.0%
Sanford-Durham Sub-BasinsArkosic sandstone, siltstone and conglomerate.Low820.8%

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

Moore County beside the ground around it

Across North Carolina 1.3% of the land is rated high; none of Moore County's is. Of the 9 counties that border it, 4 have more moderate-potential ground, Richmond County the most at 22.0%.

Share of land by USGS radon potential: Moore County, the 9 counties bordering it and North Carolina
AreaEPA zoneLow potentialModerate potentialHigh potential
Moore CountyZone 3100%NoneNone
Lee CountyZone 389.3%10.7%None
Hoke CountyZone 3100%NoneNone
Richmond CountyZone 378.0%22.0%None
Montgomery CountyZone 3100%NoneNone
Scotland CountyZone 3100%NoneNone
Chatham CountyZone 398.6%1.4%None
Randolph CountyZone 3100%NoneNone
Harnett CountyZone 388.1%11.9%None
Cumberland CountyZone 3100%NoneNone
North Carolina100 counties, pooled by land areaVaries64.8%33.0%1.3%

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

Local help

Moore County, Local resources

Radon testing and mitigation in Moore County

What North Carolina's program says
Licensing of radon professionals
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

Moore County, Questions

Questions about radon in Moore County

Are radon levels high in Moore County?

In 2022, 0.0% of the radon tests reported to CDC for Moore 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, 38 reported a higher share; pooled, the state comes to 22.6%.

Which counties border Moore County?

Moore County borders 9 counties: Lee County, Hoke County, Richmond County, Montgomery County, Scotland County, Chatham County, Randolph County, Harnett County and Cumberland County.

Products

Moore County, Products

Testing a home in Moore County

In Moore County, 19.2% of 99 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 22.6% pooled across North Carolina. 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 Moore County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Moore County homes, compared

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Moore County, Bordering counties

Counties bordering Moore County

Calculated by Radon411

Moore County, Cities and towns

Cities and towns in Moore County

Moore County is growing: the Census Bureau puts it at 110,619 residents on July 1, 2025, up 10.3% from 100,295 in 2020. That works out to 159 people per square mile of land. No town dominates: Pinehurst, the largest, has 18,670 residents, 16.9% of the total. Reported testing is thin here: 99 tests over 2008 to 2017, or 0.9 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 6.5.

From Pinehurst to Cameron, CDC publishes no figure by town: each reads Moore County's.

The cities and towns in Moore County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Pinehurst18,670+5.6%16.9%
Southern Pines17,357+10.5%15.7%
Aberdeen10,066+16.7%9.1%
Whispering Pines5,505+10.3%5.0%
Carthage3,070+10.4%2.8%
Pinebluff1,571+6.5%1.4%
Foxfire1,426+10.3%1.3%
Robbins1,305+10.9%1.2%
Vass1,062+10.7%1.0%
Candorextends beyond Moore County823+1.6%Counted whole
Taylortown701+10.6%0.6%
Cameron270+12.0%0.2%

12 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 Moore County is counted whole, so it has no share.

Moore County, Homes

Homes in Moore County

Of Moore County's 49,419 homes, 73% are detached houses, against 65% across North Carolina; 11% are mobile homes. Half of its homes were built before 1993, close to North Carolina's 1990: 11% date from before 1960 and 37% from 2000 or later. Owners live in 76% of the occupied homes (North Carolina: 66%), so for most households a test and a fix are their own to order.

Homes in Moore County, North Carolina, 2019 to 2023
HomesMoore CountyNorth Carolina
Housing units49,4194,815,195
Detached houses73%65%
In buildings of 5 or more7%14%
Mobile homes11%11%
Built before 196011%14%
Built since 200037%33%
Middle year built19931990
Owner-occupied76%66%

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