
Long-term kit![]()
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
EPA puts Buckingham County in Zone 1, its highest radon zone, and only 29 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
40.9%
Prince Edward County
5 of 6 neighbours have 30+ tests, 2006 to 2015
Nearest county
16.7%
Appomattox County, 21 miles
Share at 4+ pCi/L, 36 tests, 2006 to 2015
Ground above low
100.0%
22.1 pts above Virginia
Share of land USGS rates moderate or high potential
Tests reported
29
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Buckingham 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
Buckingham County, At a glance
Predicted: EPA radon zone
EPA puts all of Buckingham County in
USGS geologic potential: High across 69% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC holds 29 reported tests for Buckingham County over the 2008 to 2017 laboratory totals, with a median of 1.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Buckingham County beside the counties around it is how this page reads it.
Only 29 tests were reported to CDC for Buckingham County over 2008 to 2017 (laboratory totals), 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: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Buckingham County, Compared
CDC's largest figure for Buckingham County rests on 29 tests over the 2008 to 2017 laboratory totals, 4 of them at or above 4 pCi/L, so each test moves its share by 3.4 points and no rank or comparison is drawn from it. Results reached as high as 16.6 pCi/L, with a middle value of 1.5 pCi/L.
Of the counties bordering it, 5 have a figure over the 2006 to 2015 laboratory totals: Prince Edward County reported the largest share at or above 4 pCi/L, 40.9%, and Appomattox County the smallest, 16.7%, with Nelson County at 29.8%, Fluvanna County at 29.5% and Albemarle County at 26.2% between. Farther out, Charlottesville city (32 miles away) at 22.6%, Amherst County (34 miles away) at 33.8% and Goochland County (35 miles away) at 31.3% have figures too. Pooled across 132 Virginia counties, 30.7% of reported tests reached that level; across every county in the country with a figure, 36.3%.
Statewide for the same period, Russell County reported the highest share (68.5%) and Norfolk city the lowest (5.3%). EPA's 1993 map puts Buckingham County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 69% of the county's land high radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Buckingham County, Geology
USGS's geologic map splits Buckingham County: 68.6% of its land is high radon potential and 31.4% moderate. The map puts 68.6% of Buckingham County in the area it calls Inner Piedmont and 24.7% in Carolina Terrane, with one smaller area beside them. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Inner Piedmont | Granite, pegmatites, granitic gneiss, schist and gneiss, slate, and phyllite. | High | 12 | 68.6% |
| Carolina Terrane | Metavolcanic rocks, granite and granitic gneiss. | Moderate | 10 | 24.7% |
| Mesozoic Basins | Sandstone, siltstone and lacustrine black shale. | Moderate | 11 | 6.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Buckingham County has more high-potential ground than Virginia as a whole: 68.6% of its land against 47.9%. Of the 6 counties that border it, 2 have more high-potential ground, Fluvanna County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Buckingham County, Local resources
The Code of Virginia requires that Radon testers and mitigators be currently certified by either the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB).
What it means
Buckingham County, Questions
Over the 2008 to 2017 laboratory totals, 13.8% of the radon tests reported to CDC for Buckingham County, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.5 pCi/L. Of the counties bordering it, 5 have a figure over the 2006 to 2015 laboratory totals: Prince Edward County reported the largest share at or above 4 pCi/L, 40.9%, and Appomattox County the smallest, 16.7%, with Nelson County at 29.8%, Fluvanna County at 29.5% and Albemarle County at 26.2% between.
Buckingham County borders 6 counties: Cumberland County, Appomattox County, Albemarle County, Fluvanna County, Nelson County and Prince Edward County.
Products
Buckingham County, Products
No CDC figure names Buckingham County; the nearest county with one, Appomattox County (21 miles away), reported 16.7% of its tests at or above 4 pCi/L over the 2006 to 2015 laboratory totals, the only reading nearby until a test of this home. In Zone 1 the year-round level in Buckingham County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors: 1 of 3
Buckingham County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Buckingham County
Explore
Buckingham County, Bordering counties
40.9%at or above 4 pCi/L
Median 3.0 pCi/L · 44 tests
29.8%at or above 4 pCi/L
Median 2.6 pCi/L · 94 tests
29.5%at or above 4 pCi/L
Median 2.6 pCi/L · 356 tests
26.2%at or above 4 pCi/L
Median 2.2 pCi/L · 1,667 tests
20.0%at or above 4 pCi/L
Median 2.3 pCi/L · 10 tests
16.7%at or above 4 pCi/L
Median 2.3 pCi/L · 36 tests
Buckingham County, Cities and towns
The Census Bureau estimates 17,137 residents in Buckingham County for July 1, 2025, 311 more than in 2020 (+1.8%). That works out to 30 people per square mile of land. Dillwyn, its one incorporated place, has 441 residents, 2.6% of the total. Reported testing is thin here: 29 tests over 2008 to 2017, or 1.7 for every 1,000 residents (2025 estimate), where Virginia as a whole comes to 6.0.
Dillwyn is the one incorporated place here; CDC publishes no figure by town, so it reads Buckingham County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Dillwyn | 441 | +2.1% | 2.6% |
One incorporated place, 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).
Buckingham County, Homes
Of Buckingham County's 7,233 homes, 71% are detached houses, against 61% across Virginia; 28% are mobile homes. Half of its homes were built before 1990, close to Virginia's 1984: 16% date from before 1960 and 30% from 2000 or later. Owners live in 76% of the occupied homes (Virginia: 67%), so for most households a test and a fix are their own to order.
| Homes | Buckingham County | Virginia |
|---|---|---|
| Housing units | 7,233 | 3,654,784 |
| Detached houses | 71% | 61% |
| In buildings of 5 or more | under 1% | 19% |
| Mobile homes | 28% | 4% |
| Built before 1960 | 16% | 19% |
| Built since 2000 | 30% | 25% |
| Middle year built | 1990 | 1984 |
| Owner-occupied | 76% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.