Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Charlottesville city, Virginia
EPA puts Charlottesville city in Zone 2, its middle radon zone, and 21.0% of its 834 reported radon tests (2008 to 2017, laboratory totals) were at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
21.0%
9.4 pts below VA
- Charlottesville city
- 21.0%
- Virginia
- 30.4%
834 tests, 2008 to 2017
Median result
1.8pCi/L
Below action level
- Charlottesville city
- 1.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
834
15th of 84 by tests
- Charlottesville city
- 834
- Fairfax
- 8,657
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Virginia
70 of 84
Lowest quarter
- Charlottesville city
- 21.0%
- Russell
- 67.3%
By share, of 84 with 30+ tests
Read a result for Charlottesville city
Starts at Charlottesville city'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. Charlottesville city's median reported result, 2008 to 2017.
The data
Charlottesville city, At a glance
Charlottesville city at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Charlottesville city is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Charlottesville city, 2008 to 2017, laboratory
Under 2 pCi/L: 54%2 to 4 pCi/L: 25%4 pCi/L and above: 21%
Of 834 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 453 | 54.3% |
| 2 to 4 pCi/L | 206 | 24.7% |
| 4 pCi/L and above | 175 | 21.0% |
What these figures count
These are the 834 tests reported to CDC for Charlottesville city over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Charlottesville city, Compared
Charlottesville city radon figures, compared
Calculated by Radon411Charlottesville city's 834 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.8 pCi/L and a maximum of 16.6 pCi/L, and 21.0% reached 4 pCi/L. Virginia as a whole (131 Virginia counties, pooled) comes to 30.4%: 9.4 points higher than here.
Among its state's counties it ranks 70th of 84 Virginia counties with 30 or more tests for the same period. Statewide for the same period, Russell County reported the highest share (67.3%) and Norfolk city the lowest (2.7%).
Below the action level, 453 tests (54.3%) came in under 2 pCi/L, against 44.7% statewide, and 206 tests (24.7%) fell between 2 and 4, against 24.9% statewide. CDC's ten-year totals for Charlottesville city went from 591 tests (2005 to 2014) to 834 (2008 to 2017), the share going from 22.0% to 21.0%.
EPA's 1993 zone map puts Charlottesville city in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Albemarle County, the one bordering county with a figure for the same period, reported 24.7%.
CDC also counts 6 tests taken after mitigation in Charlottesville city for the same period: tests in homes where a fix was already in.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Charlottesville city, Geology
The ground under Charlottesville city
PredictedUSGS's geologic map puts all of Charlottesville city's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Blue Ridge, to which USGS gives a radon index of 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Blue Ridge | Granite, pegmatite, monazite, schist, and gneiss. | Moderate | 10 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Charlottesville city beside the ground around it
Across Virginia 47.9% of the land is rated high; none of Charlottesville city's is. Albemarle County, the one county that borders it, has more high-potential ground: 28.9%.
The map rates the ground, not the air in any home.
Local help
Charlottesville city, Local resources
Radon testing and mitigation in Charlottesville city
- VDH Radon ProgramVDH Radon Program answers questions about testing, mitigation and the rules in Virginia.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 Virginia2 professionals are listed in Virginia.
What Virginia's program says
- Phone
- (804) 864-8161
- Radon@vdh.virginia.gov
- Licensing of radon professionals
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
Charlottesville city, Questions
Questions about radon in Charlottesville city
Are radon levels high in Charlottesville city?
Over the 2008 to 2017 laboratory totals, 21.0% of the radon tests reported to CDC for Charlottesville city, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.8 pCi/L. Of 84 Virginia counties with 30 or more tests for the same period, 69 reported a higher share; pooled, the state comes to 30.4%.
Which counties border Charlottesville city?
Charlottesville city borders 1 county: Albemarle County.
Products
Charlottesville city, Products
Testing a home in Charlottesville city
In Charlottesville city, 21.0% of 834 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 30.4% pooled across Virginia. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Charlottesville city; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
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
Monitor
RadonScan-Plus USB-powered radon monitor with Wi-Fi
- C-NRPP 2024/25: Not included
- Plug-in
- Wi-Fi
- Alarm
- Screen, app
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for Charlottesville city homes, compared
Explore
Charlottesville city, Bordering counties
Counties bordering Charlottesville city
Calculated by Radon411- Radon levels in Albemarle CountyEPA zone 2
24.7%at or above 4 pCi/L
Median 2.1 pCi/L · 2,179 tests · 3.7 points above Charlottesville city
Charlottesville city, Cities and towns
Cities and towns in Charlottesville city
About 44,388 people live in Charlottesville city by the Census Bureau's estimate for July 1, 2025, 2,045 fewer than in 2020 (−4.4%). Packed into its land, that is 4,333 people per square mile. Charlottesville, its one incorporated place, has 44,388 residents, 100.0% of the total. Testing is reported here more often than across the state: CDC's 834 reported tests for 2008 to 2017 come to 18.8 for every 1,000 residents (2025 estimate), against 6.0 for Virginia.
Charlottesville is the one incorporated place here; CDC publishes no figure by town, so it reads Charlottesville city's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Charlottesville | 44,388 | −4.4% | 100.0% |
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).
Charlottesville city, Homes
Homes in Charlottesville city
Fewer than six in ten of Charlottesville city's 21,559 homes are detached houses (47%, against 61% across Virginia); the rest are attached, in shared buildings or mobile. The homes are older than Virginia's as a whole: half were built before 1967 (1984 for Virginia), and 39% date from before 1960. Most occupied homes here are rented: owners live in 44% (Virginia: 67%). A tenant can run a test; a fix is the landlord's to make.
| Homes | Charlottesville city | Virginia |
|---|---|---|
| Housing units | 21,559 | 3,654,784 |
| Detached houses | 47% | 61% |
| In buildings of 5 or more | 29% | 19% |
| Mobile homes | 1% | 4% |
| Built before 1960 | 39% | 19% |
| Built since 2000 | 22% | 25% |
| Middle year built | 1967 | 1984 |
| Owner-occupied | 44% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.