
Short-term kit![]()
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
EPA puts Anson County in Zone 3, its lowest radon zone, and only 2 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
25.3%
Stanly County
4 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
0.0%
Richmond County, 20 miles
Share at 4+ pCi/L, 52 tests, 2008 to 2017
Ground above low
31.1%
3.1 pts below NC
Share of land USGS rates moderate or high potential
Tests reported
19
Too few for a share
2007 to 2016, laboratory
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Anson County
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
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
Anson County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 69% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 33.3% |
| 2020 | 0.0% |
2020: 0.0%. Across these years the share ran from 0.0% to 33.3%. Each column counts radon tests reported to CDC that year, not homes.
Only 2 tests were reported to CDC for Anson 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).
Anson County, Compared
CDC's largest figure for Anson County rests on 19 tests over the 2007 to 2016 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 5.3 points and no rank or comparison is drawn from it. Results reached as high as 1.5 pCi/L, with a middle value of 0.6 pCi/L.
Of the counties bordering it, 4 have a figure over the 2008 to 2017 laboratory totals: Stanly County reported the largest share at or above 4 pCi/L, 25.3%, and Richmond County the smallest, 0.0%, with Montgomery County at 20.4% and Union County at 11.2% between. Farther out, Scotland County (37 miles away) at 3.2%, Cabarrus County (38 miles away) at 8.8% and Moore County (42 miles away) at 19.2% 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 Anson County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 69% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Anson County, Geology
USGS's geologic map splits Anson County: 68.9% of its land is low radon potential and 31.1% moderate. The map puts 41.0% of Anson County in the area it calls Wadesboro Subbasin and 31.1% in Carolina Slate Belt, with 2 smaller areas beside them. USGS gives the first a radon index of 8, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Wadesboro Subbasin | Arkosic sandstone, siltstone and conglomerate. | Low | 8 | 41.0% |
| Carolina Slate Belt | Felsic metavolcanics, intermediate volcanics, metamudstone, argillite, and epiclastic rocks. | Moderate | 9 | 31.1% |
| Carolina Slate Belt | Felsic metavolcanics, intermediate volcanics, metamudstone, argillite, and epiclastic rocks. | Low | 6 | 22.8% |
| Upper and Middle Coastal Plain | Tertiary coastal plain sandy and silty sediments and marsh deposits. | Low | 8 | 5.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across North Carolina 1.3% of the land is rated high; none of Anson County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Richmond County comes nearest at 22.0%.
The map rates the ground, not the air in any home.
Local help
Anson County, Local resources
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
Anson County, Questions
In 2020, 0.0% of the radon tests reported to CDC for Anson County, North Carolina were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.1 pCi/L. Of the counties bordering it, 4 have a figure over the 2008 to 2017 laboratory totals: Stanly County reported the largest share at or above 4 pCi/L, 25.3%, and Richmond County the smallest, 0.0%, with Montgomery County at 20.4% and Union County at 11.2% between.
Anson County borders 6 counties: Richmond County, NC, Stanly County, NC, Montgomery County, NC, Union County, NC, Chesterfield County, SC and Marlboro County, SC.
Products
Anson County, Products
No CDC figure names Anson County; the nearest county with one, Richmond County (20 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 Anson County.
Test kits and monitors: 1 of 3
Explore
Anson County, Bordering counties
25.3%at or above 4 pCi/L
Median 2.2 pCi/L · 229 tests
20.4%at or above 4 pCi/L
Median 1.5 pCi/L · 103 tests
11.2%at or above 4 pCi/L
Median 1.1 pCi/L · 836 tests
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 52 tests
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 10 tests
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 7 tests
Anson County, Cities and towns
About 21,758 people live in Anson County by the Census Bureau's estimate for July 1, 2025, 475 fewer than in 2020 (−2.1%). That works out to 41 people per square mile of land. Its largest town, Wadesboro, has 5,035 residents, 23.1% of the total. Together its 7 incorporated places hold 38.8% of those residents; the other 61.2% live outside any of them. Reported testing is thin here: 19 tests over 2007 to 2016, or 0.9 for every 1,000 residents (2025 estimate), where North Carolina as a whole comes to 6.3.
From Wadesboro to McFarlan, CDC publishes no figure by town: each reads Anson County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wadesboro | 5,035 | +0.2% | 23.1% |
| Polkton | 1,722 | −29.4% | 7.9% |
| Ansonville | 461 | +2.7% | 2.1% |
| Lilesville | 398 | +2.1% | 1.8% |
| Peachland | 395 | +1.0% | 1.8% |
| Morven | 331 | +0.9% | 1.5% |
| McFarlan | 96 | +3.2% | 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).
Anson County, Homes
Of Anson County's 9,932 homes, 68% are detached houses, against 65% across North Carolina; 26% are mobile homes. The homes are older than North Carolina's as a whole: half were built before 1974 (1990 for North Carolina), and 26% date from before 1960. 66% 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 | Anson County | North Carolina |
|---|---|---|
| Housing units | 9,932 | 4,815,195 |
| Detached houses | 68% | 65% |
| In buildings of 5 or more | 3% | 14% |
| Mobile homes | 26% | 11% |
| Built before 1960 | 26% | 14% |
| Built since 2000 | 11% | 33% |
| Middle year built | 1974 | 1990 |
| Owner-occupied | 66% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.