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Radon Levels in Hyde County, North Carolina

EPA puts Hyde County in Zone 3, its lowest radon zone, and only 6 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

    26.8%

    Dare County

    Dare
    26.8%

    1 of 4 neighbours have 30+ tests, 2008 to 2017

  • Nearest county

    26.8%

    Dare County, 31 miles

    Dare
    26.8%
    NC
    22.6%

    Share at 4+ pCi/L, 41 tests, 2008 to 2017

  • Ground above low

    None

    34.2 pts below NC

    Hyde
    0.0%
    NC
    34.2%

    Share of land USGS rates moderate or high potential

  • Tests reported

    6

    Too few for a share

    Hyde
    6
    Needed
    30

    2021

  • 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 Hyde 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

Hyde County, At a glance

Hyde County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

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

CDC holds 6 reported tests for Hyde County in 2021, with a median of 0.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Hyde County beside the counties around it is how this page reads it.

What these figures count

Only 6 tests were reported to CDC for Hyde 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: 2007 to 2021 (every CDC figure on file).

How to read these figures

Hyde County, Compared

Hyde County radon figures, compared

Calculated by Radon411

CDC's largest figure for Hyde County rests on 6 tests in 2021, 0 of them at or above 4 pCi/L, so each test moves its share by 16.7 points and no rank or comparison is drawn from it. Results reached as high as 0.1 pCi/L, with a middle value of 0.1 pCi/L.

Dare County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 26.8% of its tests at or above 4 pCi/L. Farther out, Carteret County (53 miles away) at 0.0%, Craven County (55 miles away) at 0.0% and Pitt County (63 miles away) at 1.0% 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 Hyde 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 Hyde 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
Dare County, NCborders it4126.8%0.1 pCi/L
Washington County, NCborders it10.0%0.1 pCi/L
Tyrrell County, NCborders it10.0%0.1 pCi/L
Beaufort County, NCborders it230.0%0.1 pCi/L
The nearest North Carolina counties to Hyde County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Dare County31 mi4126.8%0.1 pCi/L
Carteret County53 mi410.0%0.1 pCi/L
Craven County55 mi1090.0%0.2 pCi/L
Pitt County63 mi1011.0%0.1 pCi/L
Onslow County87 mi1882.7%0.5 pCi/L
Northampton County89 mi6240.3%3.4 pCi/L
Halifax County93 mi5942.4%2.6 pCi/L
Wayne County100 mi498.2%0.6 pCi/L
Hyde County ten-year laboratory totals, against North Carolina's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestNorth Carolina, pooledChange from the row before
2008 to 201740.0%0.1 pCi/L0.1 pCi/L22.6%Level
2007 to 201640.0%0.1 pCi/L0.1 pCi/L23.2%First on file

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

Hyde County, Geology

The ground under Hyde County

Predicted

USGS's geologic map puts all of Hyde County's mapped land in one class: low radon potential. 96.1% of it lies in the area the map calls Outer Coastal Plain, to which USGS gives a radon index of 7, in the low band (5 to 8).

USGS's geologic areas under Hyde County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Outer Coastal PlainUnconsolidated sand.Low796.1%

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

Hyde County beside the ground around it

Across North Carolina 1.3% of the land is rated high; none of Hyde County's is. None of the 4 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Hyde County, the 4 counties bordering it and North Carolina
AreaEPA zoneLow potentialModerate potentialHigh potential
Hyde CountyZone 396.1%NoneNone
Tyrrell CountyZone 395.8%NoneNone
Dare CountyZone 390.6%NoneNone
Washington CountyZone 399.9%NoneNone
Beaufort CountyZone 396.1%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

Hyde County, Questions

Questions about radon in Hyde County

Are radon levels high in Hyde County?

In 2021, 0.0% of the radon tests reported to CDC for Hyde County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Dare County, the one bordering county with a figure over the 2008 to 2017 laboratory totals, reported 26.8% of its tests at or above 4 pCi/L.

Which counties border Hyde County?

Hyde County borders 4 counties: Tyrrell County, Dare County, Washington County and Beaufort County.

Products

Hyde County, Products

Testing a home in Hyde County

No CDC figure names Hyde County; the nearest county with one, Dare County (31 miles away), reported 26.8% 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 Hyde County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Hyde County homes, compared

Explore

Hyde County, Bordering counties

Counties bordering Hyde County

Calculated by Radon411

Hyde County, Residents

Who lives in Hyde County

The Census Bureau estimates 4,554 residents in Hyde County for July 1, 2025, 46 more than in 2020 (+1.0%). Spread over its land, that is 7.4 people to the square mile. Testing is reported here more often than across the state: CDC's 6 reported tests for 2021 come to 1.3 for every 1,000 residents (2025 estimate), against 0.6 for North Carolina.

Census lists no incorporated place in Hyde County: every home in it reads the county's figures.

Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).

Hyde County, Homes

Homes in Hyde County

Hyde County is a place of houses on their own lots: 76% of its 3,168 homes are detached single-family houses, against 65% across North Carolina. The homes are older than North Carolina's as a whole: half were built before 1978 (1990 for North Carolina), and 27% date from before 1960. 72% 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 Hyde County, North Carolina, 2019 to 2023
HomesHyde CountyNorth Carolina
Housing units3,1684,815,195
Detached houses76%65%
In buildings of 5 or more1%14%
Mobile homes17%11%
Built before 196027%14%
Built since 200023%33%
Middle year built19781990
Owner-occupied72%66%

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