Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Wilson County, North Carolina
EPA puts Wilson County in Zone 3, its lowest radon zone, and only 11 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
8.2%
Wayne County
- Wayne
- 8.2%
- Nash
- 0.0%
4 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
0.0%
Nash County, 18 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
- Wilson
- 0.0%
- NC
- 34.2%
Share of land USGS rates moderate or high potential
Tests reported
17
Too few for a share
- Wilson
- 17
- 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 Wilson 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
Wilson County, At a glance
Wilson 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 Wilson County, 2021
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2020 | 12.5% |
| 2021 | 0.0% |
2021: 0.0%. Across these years the share ran from 0.0% to 12.5%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 11 tests were reported to CDC for Wilson 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).
Wilson County, Compared
Wilson County radon figures, compared
Calculated by Radon411CDC's largest figure for Wilson County rests on 17 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 5.9 points and no rank or comparison is drawn from it. Results reached as high as 2.3 pCi/L, with a middle value of 0.4 pCi/L.
Of the counties bordering it, 4 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 Nash County the smallest, 0.0%, with Johnston County at 8.2% and Pitt County at 1.0% between. Farther out, Franklin County (33 miles away) at 19.1%, Halifax County (41 miles away) at 42.4% and Wake County (42 miles away) at 9.6% 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 Wilson 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.
Wilson County, Geology
The ground under Wilson County
PredictedUSGS's geologic map puts all of Wilson County's mapped land in one class: low radon potential. The map puts 76.3% of Wilson County in the area it calls Inner Coastal Plain and 23.7% in Eastern Slate Belt. USGS gives both 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 | 76.3% |
| Eastern Slate Belt | Proterozoic to Cambrian metamudstone and argillite, interbedded with metamorphosed sandstone, conglomerate, and volcanic rock. | Low | 8 | 23.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Wilson County beside the ground around it
Across North Carolina 1.3% of the land is rated high; none of Wilson County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Johnston County the most at 30.9%.
The map rates the ground, not the air in any home.
Local help
Wilson County, Local resources
Radon testing and mitigation in Wilson 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
Wilson County, Questions
Questions about radon in Wilson County
Are radon levels high in Wilson County?
In 2021, 0.0% of the radon tests reported to CDC for Wilson 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, 4 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 Nash County the smallest, 0.0%, with Johnston County at 8.2% and Pitt County at 1.0% between.
Which counties border Wilson County?
Wilson County borders 6 counties: Nash County, Greene County, Wayne County, Edgecombe County, Johnston County and Pitt County.
Products
Wilson County, Products
Testing a home in Wilson County
No CDC figure names Wilson County; the nearest county with one, Nash County (18 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 Wilson 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
XR0B-SR battery digital radon monitor with an alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
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
Wilson County, Bordering counties
Counties bordering Wilson 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 Johnston CountyEPA zone 3
8.2%at or above 4 pCi/L
Median 0.7 pCi/L · 668 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 Nash CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 30 tests
- Radon levels in Greene CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 7 tests
- Radon levels in Edgecombe CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 9 tests
Wilson County, Cities and towns
Cities and towns in Wilson County
The Census Bureau estimates 81,150 residents in Wilson County for July 1, 2025, 1,334 more than in 2020 (+1.7%). That works out to 221 people per square mile of land. Wilson alone is home to 49,572 of them, 61.1% of the total. Reported testing is thin here: 17 tests over 2008 to 2017, or 0.2 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 6.5.
From Wilson to Sims, CDC publishes no figure by town: each reads Wilson County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wilson | 49,572 | +1.2% | 61.1% |
| Sharpsburgextends beyond Wilson County | 1,798 | +4.3% | Counted whole |
| Kenlyextends beyond Wilson County | 1,722 | +14.8% | Counted whole |
| Elm Cityextends beyond Wilson County | 1,250 | +1.5% | Counted whole |
| Lucama | 1,052 | +2.4% | 1.3% |
| Stantonsburg | 778 | +1.8% | 1.0% |
| Black Creek | 708 | +2.2% | 0.9% |
| Saratoga | 363 | +2.0% | 0.4% |
| Sims | 346 | +1.8% | 0.4% |
9 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 Wilson County is counted whole, so it has no share.
Wilson County, Homes
Homes in Wilson County
Of Wilson County's 36,702 homes, 63% are detached houses, against 65% across North Carolina; 14% are mobile homes. Half of its homes were built before 1985, close to North Carolina's 1990: 20% date from before 1960 and 26% from 2000 or later. 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 | Wilson County | North Carolina |
|---|---|---|
| Housing units | 36,702 | 4,815,195 |
| Detached houses | 63% | 65% |
| In buildings of 5 or more | 7% | 14% |
| Mobile homes | 14% | 11% |
| Built before 1960 | 20% | 14% |
| Built since 2000 | 26% | 33% |
| Middle year built | 1985 | 1990 |
| Owner-occupied | 59% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.