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Radon Levels in Edgecombe County, North Carolina

EPA puts Edgecombe County in Zone 3, its lowest radon zone, and only 2 radon tests from it are on file with CDC (2021). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Highest bordering

    42.4%

    Halifax County

    Halifax
    42.4%
    Nash
    0.0%

    3 of 5 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    0.0%

    Nash County, 22 miles

    Nash
    0.0%
    NC
    22.6%

    Share at 4+ pCi/L, 30 tests, 2008 to 2017

  • Ground above low

    None

    34.2 pts below NC

    Edgecombe
    0.0%
    NC
    34.2%

    Share of land USGS rates moderate or high potential

  • Tests reported

    14

    Too few for a share

    Edgecombe
    14
    Needed
    30

    2014

  • 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

Read a result for Edgecombe County

Starts at EPA's action level

4.0pCi/L

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

EPA’s reading of 4.0 pCi/L

At or above 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 at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.

The data

Edgecombe County, At a glance

Edgecombe County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Edgecombe 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 Edgecombe County, 2021

Share of reported tests at or above 4 pCi/L, by year, Edgecombe County
Share of reported tests at or above 4 pCi/L, by year, Edgecombe County
YearShare of reported tests at or above 4 pCi/L
201414.3%
20200.0%
20210.0%

2021: 0.0%. Across these years the share ran from 0.0% to 14.3%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

Only 2 tests were reported to CDC for Edgecombe 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).

How to read these figures

Edgecombe County, Compared

Edgecombe County radon figures, compared

Calculated by Radon411

CDC's largest figure for Edgecombe County rests on 14 tests in 2014, 2 of them at or above 4 pCi/L, so each test moves its share by 7.1 points and no rank or comparison is drawn from it. Results reached as high as 5.4 pCi/L, with a middle value of 0.9 pCi/L.

Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Halifax County reported the largest share at or above 4 pCi/L, 42.4%, and Nash County the smallest, 0.0%, with Pitt County at 1.0% between. Farther out, Northampton County (37 miles away) at 40.3%, Franklin County (40 miles away) at 19.1% and Warren County (44 miles away) at 42.7% have figures too. Pooled across 99 North Carolina counties, 22.6% of reported tests reached that level; across every county in the country with a figure, 35.7%.

Statewide for the same period, Transylvania County reported the highest share (47.8%) and Nash County the lowest (0.0%). EPA's 1993 map puts Edgecombe County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.

North Carolina, the United States and the counties around Edgecombe County, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedian
North Carolina, pooled99 counties, pooled73,13922.6%Not pooled
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled
Transylvania Countyhighest in the state3,86247.8%3.7 pCi/L
Columbus Countylowest in the state310.0%0.1 pCi/L
Halifax County, NCborders it5942.4%2.6 pCi/L
Pitt County, NCborders it1011.0%0.1 pCi/L
Nash County, NCborders it300.0%0.2 pCi/L
Wilson County, NCborders it170.0%0.4 pCi/L
Martin County, NCborders it40.0%0.6 pCi/L
The nearest North Carolina counties to Edgecombe County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Nash County22 mi300.0%0.2 pCi/L
Halifax County24 mi5942.4%2.6 pCi/L
Pitt County25 mi1011.0%0.1 pCi/L
Northampton County37 mi6240.3%3.4 pCi/L
Franklin County40 mi20419.1%1.4 pCi/L
Warren County44 mi8242.7%3.0 pCi/L
Wayne County44 mi498.2%0.6 pCi/L
Johnston County51 mi6688.2%0.7 pCi/L
Edgecombe County radon tests by year, against North Carolina's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNorth Carolina, pooledChange from the row before
202120.0%0.1 pCi/L0.1 pCi/L14.9%Level
2020130.0%0.3 pCi/L1.0 pCi/L21.1%−14.3 points
20141414.3%0.9 pCi/L5.4 pCi/L21.9%First on file

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

Edgecombe County, Geology

The ground under Edgecombe County

Predicted

USGS's geologic map puts all of Edgecombe County's mapped land in one class: low radon potential. All of it lies in the area the map calls Inner Coastal Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Edgecombe County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Inner Coastal PlainFossiliferous clay and sand, shelly sand, sandy marl, and limestone.Low8100%

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

Edgecombe County beside the ground around it

Across North Carolina 1.3% of the land is rated high; none of Edgecombe County's is. Of the 5 counties that border it, 2 have more moderate-potential ground, Nash County the most at 13.2%.

Share of land by USGS radon potential: Edgecombe County, the 5 counties bordering it and North Carolina
AreaEPA zoneLow potentialModerate potentialHigh potential
Edgecombe CountyZone 3100%NoneNone
Halifax CountyZone 389.8%10.2%None
Martin CountyZone 3100%NoneNone
Nash CountyZone 386.8%13.2%None
Wilson CountyZone 3100%NoneNone
Pitt 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.

What it means

Edgecombe County, Questions

Questions about radon in Edgecombe County

Are radon levels high in Edgecombe County?

In 2021, 0.0% of the radon tests reported to CDC for Edgecombe County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Halifax County reported the largest share at or above 4 pCi/L, 42.4%, and Nash County the smallest, 0.0%, with Pitt County at 1.0% between.

Which counties border Edgecombe County?

Edgecombe County borders 5 counties: Halifax County, Martin County, Nash County, Wilson County and Pitt County.

Products

Edgecombe County, Products

Testing a home in Edgecombe County

No CDC figure names Edgecombe County; the nearest county with one, Nash County (22 miles away), reported 0.0% of its tests at or above 4 pCi/L over the 2008 to 2017 laboratory totals, the only reading nearby until a test of this home. 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 Edgecombe County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Edgecombe County homes, compared

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Edgecombe County, Bordering counties

Counties bordering Edgecombe County

Calculated by Radon411

Edgecombe County, Cities and towns

Cities and towns in Edgecombe County

The Census Bureau estimates 49,121 residents in Edgecombe County for July 1, 2025, 340 more than in 2020 (+0.7%). That works out to 97 people per square mile of land. Rocky Mount, the largest place on its list (55,120 residents in all), extends beyond Edgecombe County, so no share of the total is worked out for it. Reported testing is thin here: 14 tests over 2014, or 0.3 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 1.0.

From Rocky Mount to Leggett, CDC publishes no figure by town: each reads Edgecombe County's.

The cities and towns in Edgecombe County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Rocky Mountextends beyond Edgecombe County55,120+0.4%Counted whole
Tarboro10,979+2.7%22.4%
Sharpsburgextends beyond Edgecombe County1,798+4.3%Counted whole
Princeville1,286+1.3%2.6%
Pinetops1,198−0.8%2.4%
Whitakersextends beyond Edgecombe County646+2.7%Counted whole
Macclesfield408−0.7%0.8%
Conetoe201Level0.4%
Speed66+1.5%0.1%
Leggett37−2.6%Under 0.1%

10 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 Edgecombe County is counted whole, so it has no share.

Edgecombe County, Homes

Homes in Edgecombe County

Of Edgecombe County's 23,258 homes, 62% are detached houses, against 65% across North Carolina; 22% are mobile homes. The homes are older than North Carolina's as a whole: half were built before 1977 (1990 for North Carolina), and 27% date from before 1960. 59% 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 in Edgecombe County, North Carolina, 2019 to 2023
HomesEdgecombe CountyNorth Carolina
Housing units23,2584,815,195
Detached houses62%65%
In buildings of 5 or more5%14%
Mobile homes22%11%
Built before 196027%14%
Built since 200019%33%
Middle year built19771990
Owner-occupied59%66%

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