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 Davidson County, North Carolina
EPA puts Davidson County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
25.5%
2.9 pts above NC
- Davidson
- 25.5%
- NC
- 22.6%
1,265 tests, 2008 to 2017
Median result
1.8pCi/L
Below action level
- Davidson
- 1.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
1,265
11th of 75 by tests
- Davidson
- 1,265
- Wake
- 9,694
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in NC
33 of 75
Middle half
- Davidson
- 25.5%
- Transylvania
- 47.8%
By share, of 75 with 30+ tests
Read a result for Davidson County
Starts at Davidson County's median, 1.8 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.8 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Davidson County's median reported result, 2008 to 2017.
The data
Davidson County, At a glance
Davidson 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 Davidson County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 20.4% |
| 2020 | 20.2% |
| 2021 | 7.8% |
| 2022 | 0.0% |
2022: 0.0%. Across these years the share ran from 0.0% to 20.4%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 3 tests were reported to CDC for Davidson County over 2022, 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: 2022. Measured data period: 2005 to 2022 (every CDC figure on file).
Davidson County, Compared
Davidson County radon figures, compared
Calculated by Radon411Davidson County's 1,265 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.8 pCi/L and a maximum of 89.7 pCi/L, and 25.5% reached 4 pCi/L. North Carolina as a whole (99 North Carolina counties, pooled) comes to 22.6%: 2.9 points lower than here.
The newest figure, in 2022, counts only 3 tests (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 1,265-test figure.
Among its state's counties it ranks 33rd of 75 North Carolina counties with 30 or more tests for the same period. Statewide for the same period, Transylvania County reported the highest share (47.8%) and Nash County the lowest (0.0%).
Below the action level, 669 tests (52.9%) came in under 2 pCi/L, against 55.6% statewide, and 273 tests (21.6%) fell between 2 and 4, against 21.8% statewide. The busiest year on file was 2014, with 167 tests reported; the quietest, 2022, had 3.
EPA's 1993 zone map puts Davidson County in Zone 3, a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Next door, the shares run from 7.1% in Randolph County to 28.9% in Forsyth County, with Stanly County, Montgomery County and Rowan County below Davidson County. Over 3 years of annual figures the share fell 12.6 points, from 20.4% in 2014 to 7.8% in 2021; its peak was 20.4% in 2014.
CDC also counts 26 tests taken after mitigation in Davidson County for the same period: tests in homes where a fix was already in.
Davidson CountyNorth Carolina, pooled
| Year | Tests | Davidson County, at or above 4 pCi/L | North Carolina, pooled |
|---|---|---|---|
| 2014 | 167 | 20.4% | 21.9% |
| 2020 | 104 | 20.2% | 21.1% |
| 2021 | 51 | 7.8% | 14.9% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Davidson County, Geology
The ground under Davidson County
PredictedUSGS's geologic map puts all of Davidson County's mapped land in one class: low radon potential. The map puts 54.1% of Davidson County in the area it calls Charlotte Belt and 45.9% in Carolina Slate Belt. USGS gives the first a radon index of 8 and the second 6, both in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Charlotte Belt | Igneous rocks, including granite, gabbro, and diorite. | Low | 8 | 54.1% |
| Carolina Slate Belt | Felsic metavolcanics, intermediate volcanics, metamudstone, argillite, and epiclastic rocks. | Low | 6 | 45.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Davidson County beside the ground around it
Across North Carolina 1.3% of the land is rated high; none of Davidson County's is. Of the 7 counties that border it, 3 have more moderate-potential ground, Forsyth County the most at 76.3%.
The map rates the ground, not the air in any home.
Local help
Davidson County, Local resources
Radon testing and mitigation in Davidson 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
Davidson County, Questions
Questions about radon in Davidson County
Are radon levels high in Davidson County?
In 2022, 0.0% of the radon tests reported to CDC for Davidson County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.0 pCi/L. Of 75 North Carolina counties with 30 or more tests for the same period, 32 reported a higher share; pooled, the state comes to 22.6%.
Which counties border Davidson County?
Davidson County borders 7 counties: Rowan County, Davie County, Forsyth County, Randolph County, Stanly County, Montgomery County and Guilford County.
Products
Davidson County, Products
Testing a home in Davidson County
In Davidson County, 25.5% of 1,265 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 22.6% pooled across North Carolina. 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 Davidson 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
Monitor
RM-63Pro rechargeable radon monitor with a touchscreen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Davidson County, Bordering counties
Counties bordering Davidson County
Calculated by Radon411- Radon levels in Forsyth CountyEPA zone 2
28.9%at or above 4 pCi/L
Median 2.3 pCi/L · 6,273 tests · 3.4 points above Davidson County
- Radon levels in Stanly CountyEPA zone 3
25.3%at or above 4 pCi/L
Median 2.2 pCi/L · 229 tests · 0.2 points below Davidson County
- Radon levels in Montgomery CountyEPA zone 3
20.4%at or above 4 pCi/L
Median 1.5 pCi/L · 103 tests · 5.1 points below Davidson County
- Radon levels in Rowan CountyEPA zone 3
17.7%at or above 4 pCi/L
Median 1.4 pCi/L · 626 tests · 7.8 points below Davidson County
- Radon levels in Davie CountyEPA zone 3
17.4%at or above 4 pCi/L
Median 1.7 pCi/L · 694 tests · 8.1 points below Davidson County
- Radon levels in Guilford CountyEPA zone 3
7.9%at or above 4 pCi/L
Median 0.9 pCi/L · 6,870 tests · 17.6 points below Davidson County
- Radon levels in Randolph CountyEPA zone 3
7.1%at or above 4 pCi/L
Median 0.9 pCi/L · 422 tests · 18.4 points below Davidson County
Davidson County, Cities and towns
Cities and towns in Davidson County
Davidson County is growing: the Census Bureau puts it at 180,182 residents on July 1, 2025, up 6.6% from 169,029 in 2020. That works out to 326 people per square mile of land. High Point, the largest place on its list (120,571 residents in all), extends beyond Davidson County, so no share of the total is worked out for it. CDC's 1,265 reported tests for 2008 to 2017 work out to 7.0 per 1,000 residents (2025 estimate), close to North Carolina's 6.5.
From High Point to Denton, CDC publishes no figure by town: each reads Davidson County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| High Pointextends beyond Davidson County | 120,571 | +5.1% | Counted whole |
| Thomasvilleextends beyond Davidson County | 27,733 | +2.4% | Counted whole |
| Lexington | 20,238 | +3.7% | 11.2% |
| Midway | 5,104 | +7.5% | 2.8% |
| Wallburg | 3,255 | +7.6% | 1.8% |
| Denton | 1,610 | +7.3% | 0.9% |
6 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 Davidson County is counted whole, so it has no share.
Davidson County, Homes
Homes in Davidson County
Of Davidson County's 75,615 homes, 75% are detached houses, against 65% across North Carolina; 13% are mobile homes. Half of its homes were built before 1985, close to North Carolina's 1990: 20% date from before 1960 and 27% from 2000 or later. 74% 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 | Davidson County | North Carolina |
|---|---|---|
| Housing units | 75,615 | 4,815,195 |
| Detached houses | 75% | 65% |
| In buildings of 5 or more | 4% | 14% |
| Mobile homes | 13% | 11% |
| Built before 1960 | 20% | 14% |
| Built since 2000 | 27% | 33% |
| Middle year built | 1985 | 1990 |
| Owner-occupied | 74% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.