Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Greene County, North Carolina
EPA puts Greene County in Zone 3, its lowest radon zone, and only 1 radon test from it is 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
8.2%
Wayne County
- Wayne
- 8.2%
- Pitt
- 1.0%
2 of 4 neighbours have 30+ tests, 2008 to 2017
Nearest county
1.0%
Pitt County, 19 miles
- Pitt
- 1.0%
- NC
- 22.6%
Share at 4+ pCi/L, 101 tests, 2008 to 2017
Ground above low
None
34.2 pts below NC
- Greene
- 0.0%
- NC
- 34.2%
Share of land USGS rates moderate or high potential
Tests reported
7
Too few for a share
- Greene
- 7
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Greene County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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
Greene County, At a glance
Greene County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
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 Greene County, 2020
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2020 | 0.0% |
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 1 test was reported to CDC for Greene 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).
Greene County, Compared
Greene County radon figures, compared
Calculated by Radon411CDC's largest figure for Greene County rests on 7 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 14.3 points and no rank or comparison is drawn from it. Results reached as high as 3.6 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: Wayne County reported the largest share at or above 4 pCi/L, 8.2%, and Pitt County the smallest, 1.0%. Farther out, Nash County (38 miles away) at 0.0%, Johnston County (39 miles away) at 8.2% and Craven County (41 miles away) at 0.0% 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 Greene 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.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Greene County, Geology
The ground under Greene County
PredictedUSGS's geologic map puts all of Greene 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).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Inner Coastal Plain | Fossiliferous clay and sand, shelly sand, sandy marl, and limestone. | Low | 8 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Greene County beside the ground around it
Across North Carolina 1.3% of the land is rated high; none of Greene County's is. None of the 4 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Greene County, Local resources
Radon testing and mitigation in Greene County
- North Carolina Radon ProgramNorth Carolina Radon Program, run by NCDHHS, answers questions about testing, mitigation and the rules in North Carolina.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- Professionals in North Carolina2 professionals are listed in North Carolina.
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
Greene County, Questions
Questions about radon in Greene County
Are radon levels high in Greene County?
In 2020, 0.0% of the radon tests reported to CDC for Greene County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.4 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Wayne County reported the largest share at or above 4 pCi/L, 8.2%, and Pitt County the smallest, 1.0%.
Which counties border Greene County?
Greene County borders 4 counties: Pitt County, Wayne County, Wilson County and Lenoir County.
Products
Greene County, Products
Testing a home in Greene County
No CDC figure names Greene County; the nearest county with one, Pitt County (19 miles away), reported 1.0% 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 Greene County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorX-Sense
XR0A-iR Wi-Fi battery radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Wi-Fi
- Screen, app
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Greene County, Bordering counties
Counties bordering Greene County
Calculated by Radon411- Radon levels in Wayne CountyEPA zone 3
8.2%at or above 4 pCi/L
Median 0.6 pCi/L · 49 tests
- Radon levels in Pitt CountyEPA zone 3
1.0%at or above 4 pCi/L
Median 0.1 pCi/L · 101 tests
- Radon levels in Wilson CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.4 pCi/L · 17 tests
- Radon levels in Lenoir CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 15 tests
Greene County, Cities and towns
Cities and towns in Greene County
The Census Bureau estimates 20,700 residents in Greene County for July 1, 2025, 259 more than in 2020 (+1.3%). That works out to 78 people per square mile of land. No town dominates: Snow Hill, the largest, has 1,588 residents, 7.7% of the total. Together its 3 incorporated places hold 10.7% of those residents; the other 89.3% live outside any of them. Reported testing is thin here: 7 tests over 2008 to 2017, or 0.3 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 6.5.
From Snow Hill to Walstonburg, CDC publishes no figure by town: each reads Greene County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Snow Hill | 1,588 | −0.8% | 7.7% |
| Hookerton | 419 | +0.7% | 2.0% |
| Walstonburg | 198 | Level | 1.0% |
3 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).
Greene County, Homes
Homes in Greene County
Of Greene County's 7,909 homes, 57% are detached houses, against 65% across North Carolina; 38% are mobile homes. Half of its homes were built before 1984, close to North Carolina's 1990: 19% date from before 1960 and 23% from 2000 or later. 65% 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 | Greene County | North Carolina |
|---|---|---|
| Housing units | 7,909 | 4,815,195 |
| Detached houses | 57% | 65% |
| In buildings of 5 or more | 2% | 14% |
| Mobile homes | 38% | 11% |
| Built before 1960 | 19% | 14% |
| Built since 2000 | 23% | 33% |
| Middle year built | 1984 | 1990 |
| Owner-occupied | 65% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.