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Radon Levels in Beaufort County, North Carolina

EPA puts Beaufort County in Zone 3, its lowest radon zone, and only 6 radon tests from it are on file with CDC (2020). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Highest bordering

    1.0%

    Pitt County

    Pitt
    1.0%
    Craven
    0.0%

    2 of 6 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    0.0%

    Craven County, 29 miles

    Craven
    0.0%
    NC
    22.6%

    Share at 4+ pCi/L, 109 tests, 2008 to 2017

  • Ground above low

    None

    34.2 pts below NC

    Beaufort
    0.0%
    NC
    34.2%

    Share of land USGS rates moderate or high potential

  • Tests reported

    26

    Too few for a share

    Beaufort
    26
    Needed
    30

    2007 to 2016, laboratory

  • 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 Beaufort 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

Beaufort County, At a glance

Beaufort County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Beaufort 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 96% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Beaufort County, 2020

Share of reported tests at or above 4 pCi/L, by year, Beaufort County
Share of reported tests at or above 4 pCi/L, by year, Beaufort County
YearShare of reported tests at or above 4 pCi/L
20140.0%
20200.0%

2020: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

Only 6 tests were reported to CDC for Beaufort County over 2020, 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: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).

How to read these figures

Beaufort County, Compared

Beaufort County radon figures, compared

Calculated by Radon411

CDC's largest figure for Beaufort County rests on 26 tests over the 2007 to 2016 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 3.8 points and no rank or comparison is drawn from it. Results reached as high as 2.6 pCi/L, with a middle value of 0.1 pCi/L.

Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Pitt County reported the largest share at or above 4 pCi/L, 1.0%, and Craven County the smallest, 0.0%. Farther out, Carteret County (47 miles away) at 0.0%, Onslow County (62 miles away) at 2.7% and Dare County (63 miles away) at 26.8% 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 Beaufort County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 96% of the county's land low radon potential.

North Carolina, the United States and the counties around Beaufort 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
Nash Countylowest in the state300.0%0.2 pCi/L
Pitt County, NCborders it1011.0%0.1 pCi/L
Craven County, NCborders it1090.0%0.2 pCi/L
Pamlico County, NCborders it10.0%0.1 pCi/L
Washington County, NCborders it10.0%0.1 pCi/L
Hyde County, NCborders it40.0%0.1 pCi/L
Martin County, NCborders it40.0%0.6 pCi/L
The nearest North Carolina counties to Beaufort County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Craven County29 mi1090.0%0.2 pCi/L
Pitt County30 mi1011.0%0.1 pCi/L
Carteret County47 mi410.0%0.1 pCi/L
Onslow County62 mi1882.7%0.5 pCi/L
Dare County63 mi4126.8%0.1 pCi/L
Wayne County65 mi498.2%0.6 pCi/L
Halifax County69 mi5942.4%2.6 pCi/L
Northampton County70 mi6240.3%3.4 pCi/L
Beaufort County radon tests by year, against North Carolina's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNorth Carolina, pooledChange from the row before
202060.0%0.7 pCi/L2.4 pCi/L21.1%Level
2014100.0%1.3 pCi/L3.0 pCi/L21.9%First on file

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

Beaufort County, Geology

The ground under Beaufort County

Predicted

USGS's geologic map puts all of Beaufort County's mapped land in one class: low radon potential. The map puts 51.9% of Beaufort County in the area it calls Outer Coastal Plain and 44.2% in Inner Coastal Plain. USGS gives the first a radon index of 7 and the second 8, both in the low band (5 to 8).

USGS's geologic areas under Beaufort County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Outer Coastal PlainUnconsolidated sand.Low751.9%
Inner Coastal PlainFossiliferous clay and sand, shelly sand, sandy marl, and limestone.Low844.2%

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

Beaufort County beside the ground around it

Across North Carolina 1.3% of the land is rated high; none of Beaufort County's is. None of the 6 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Beaufort County, the 6 counties bordering it and North Carolina
AreaEPA zoneLow potentialModerate potentialHigh potential
Beaufort CountyZone 396.1%NoneNone
Pamlico CountyZone 391.8%NoneNone
Washington CountyZone 399.9%NoneNone
Craven CountyZone 398.0%NoneNone
Hyde CountyZone 396.1%NoneNone
Pitt CountyZone 3100%NoneNone
Martin 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

Beaufort County, Questions

Questions about radon in Beaufort County

Are radon levels high in Beaufort County?

In 2020, 0.0% of the radon tests reported to CDC for Beaufort County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.7 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Pitt County reported the largest share at or above 4 pCi/L, 1.0%, and Craven County the smallest, 0.0%.

Which counties border Beaufort County?

Beaufort County borders 6 counties: Pamlico County, Washington County, Craven County, Hyde County, Pitt County and Martin County.

Products

Beaufort County, Products

Testing a home in Beaufort County

No CDC figure names Beaufort County; the nearest county with one, Craven County (29 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 Beaufort County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Beaufort County homes, compared

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Beaufort County, Bordering counties

Counties bordering Beaufort County

Calculated by Radon411

Beaufort County, Cities and towns

Cities and towns in Beaufort County

Beaufort County's population has barely moved since 2020: 44,670 residents on July 1, 2025 against 44,694 then, by the Census Bureau's estimates. That works out to 54 people per square mile of land. Its largest town, Washington, has 9,910 residents, 22.2% of the total. Together its 7 incorporated places hold 29.8% of those residents; the other 70.2% live outside any of them. Reported testing is thin here: 26 tests over 2007 to 2016, or 0.6 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 6.3.

From Washington to Pantego, CDC publishes no figure by town: each reads Beaufort County's.

The cities and towns in Beaufort County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Washington9,910−1.5%22.2%
Belhaven1,414+0.1%3.2%
Chocowinity751−0.1%1.7%
Aurora454−0.2%1.0%
Washington Park383−1.8%0.9%
Bath243−0.8%0.5%
Pantego161−0.6%0.4%

7 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).

Beaufort County, Homes

Homes in Beaufort County

Of Beaufort County's 24,385 homes, 66% are detached houses, against 65% across North Carolina; 24% are mobile homes. The homes are older than North Carolina's as a whole: half were built before 1979 (1990 for North Carolina), and 24% date from before 1960. 70% 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 Beaufort County, North Carolina, 2019 to 2023
HomesBeaufort CountyNorth Carolina
Housing units24,3854,815,195
Detached houses66%65%
In buildings of 5 or more4%14%
Mobile homes24%11%
Built before 196024%14%
Built since 200020%33%
Middle year built19791990
Owner-occupied70%66%

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