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Radon Levels in Fluvanna County, Virginia

EPA puts Fluvanna County in Zone 1, its highest radon zone, and 28.1% of its 388 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

    28.1%

    2.3 pts below VA

    Fluvanna
    28.1%
    Virginia
    30.4%

    388 tests, 2008 to 2017

  • Median result

    2.5pCi/L

    Below action level

    Fluvanna
    2.5 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    388

    31st of 84 by tests

    Fluvanna
    388
    Fairfax
    8,657

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 1

    Highest potential

    1. Zone 1
    2. 2
    3. 3

    1 highest, 3 lowest

    EPA predicts over 4 pCi/L indoors

  • Rank in Virginia

    56 of 84

    Middle half

    Fluvanna
    28.1%
    Russell
    67.3%

    By share, of 84 with 30+ tests

Read a result for Fluvanna County

Starts at Fluvanna County's median, 2.5 pCi/L

2.5pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 2.5 pCi/L

Between 2 and 4 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Fluvanna County's median reported result, 2008 to 2017.

The data

Fluvanna County, At a glance

Fluvanna County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA puts all of Fluvanna County in and predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county. That is one forecast for the whole county, not a reading of any address in it; homes above EPA's turn up in all three zones.

USGS geologic potential: High across 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Fluvanna County, 2008 to 2017, laboratory

Reported results by concentration band, Fluvanna County, 2008 to 2017, laboratory
Under 2 pCi/L: 42%2 to 4 pCi/L: 30%4 pCi/L and above: 28%

Of 388 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Fluvanna County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L16141.5%
2 to 4 pCi/L11830.4%
4 pCi/L and above10928.1%
What these figures count

These are the 388 tests reported to CDC for Fluvanna County 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).

How to read these figures

Fluvanna County, Compared

Fluvanna County radon figures, compared

Calculated by Radon411

Fluvanna County's 388 reported tests over the 2008 to 2017 laboratory totals had a middle value of 2.5 pCi/L and a maximum of 23.0 pCi/L, and 28.1% reached 4 pCi/L. Virginia as a whole (131 Virginia counties, pooled) comes to 30.4%: 2.3 points higher than here.

Among its state's counties it ranks 56th 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, 161 tests (41.5%) came in under 2 pCi/L, against 44.7% statewide, and 118 tests (30.4%) fell between 2 and 4, against 24.9% statewide. CDC's ten-year totals for Fluvanna County went from 329 tests (2005 to 2014) to 388 (2008 to 2017), the share going from 28.3% to 28.1%.

EPA's 1993 zone map puts Fluvanna County in Zone 1, a predicted county average above 4 pCi/L. USGS geology rates 100% of the county's land high radon potential.

Next door, the shares run from 24.7% in Albemarle County to 38.1% in Louisa County, with Albemarle County below Fluvanna County.

Fluvanna County against Virginia, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Fluvanna County
Fluvanna County38828.1%2.5 pCi/LThis county
Virginia, pooled131 counties, pooled53,19930.4%Not pooled+2.3 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+7.6 points
Russell Countyhighest in the state4967.3%6.7 pCi/L+39.2 points
Norfolk citylowest in the state732.7%0.5 pCi/L−25.4 points
Louisa County, VAborders it28938.1%2.8 pCi/L+10.0 points
Goochland County, VAborders it11430.7%2.4 pCi/L+2.6 points
Albemarle County, VAborders it2,17924.7%2.1 pCi/L−3.4 points
Cumberland County, VAborders it1216.7%2.1 pCi/L−11.4 points
Buckingham County, VAborders it2913.8%1.5 pCi/L−14.3 points
Where Fluvanna County's reported results fell, 2008 to 2017, laboratory, beside Virginia and the United States
ResultFluvanna County testsFluvanna County shareVirginia shareU.S. shareAgainst Virginia
Under 2 pCi/L16141.5%44.7%39.6%−3.2 points
2 to 4 pCi/L11830.4%24.9%24.7%+5.5 points
4 pCi/L and above10928.1%30.4%35.7%−2.3 points
Fluvanna County ranked among the 84 Virginia counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Goochland County51 of 8411430.7%2.4 pCi/L
Fauquier County52 of 841,19930.2%2.5 pCi/L
Chesterfield County53 of 8473329.6%2.2 pCi/L
Nelson County54 of 8412228.7%2.6 pCi/L
Wise County55 of 845328.3%1.3 pCi/L
Fluvanna County56 of 8438828.1%2.5 pCi/L
Powhatan County57 of 845028.0%1.7 pCi/L
Richmond city58 of 8452027.7%2.1 pCi/L
Loudoun County59 of 844,45727.4%1.8 pCi/L
Martinsville city60 of 843327.3%1.8 pCi/L
Henrico County61 of 8460727.0%2.1 pCi/L
Fluvanna County ten-year laboratory totals, against Virginia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestVirginia, pooledChange from the row before
2008 to 201738828.1%2.5 pCi/L23.0 pCi/L30.4%−1.3 points
2007 to 201637129.4%2.6 pCi/L23.0 pCi/L30.6%−0.1 points
2006 to 201535629.5%2.6 pCi/L23.0 pCi/L30.7%+1.2 points
2005 to 201432928.3%2.4 pCi/L23.0 pCi/L30.3%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Fluvanna County, Geology

The ground under Fluvanna County

Predicted

USGS's geologic map puts all of Fluvanna County's mapped land in one class: high radon potential. All of it lies in the area the map calls Inner Piedmont, to which USGS gives a radon index of 12, in the high band (12 to 17).

USGS's geologic areas under Fluvanna County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Inner PiedmontGranite, pegmatites, granitic gneiss, schist and gneiss, slate, and phyllite.High12100%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Fluvanna County beside the ground around it

Fluvanna County has more high-potential ground than Virginia as a whole: 100% of its land against 47.9%. Of the 5 counties that border it, none has as large a share of high-potential ground; Louisa County comes nearest at 100%.

Share of land by USGS radon potential: Fluvanna County, the 5 counties bordering it and Virginia
AreaEPA zoneLow potentialModerate potentialHigh potential
Fluvanna CountyZone 1NoneNone100%
Albemarle CountyZone 2None71.1%28.9%
Goochland CountyZone 1None10.1%89.9%
Louisa CountyZone 1NoneNone100%
Cumberland CountyZone 1None28.8%71.2%
Buckingham CountyZone 1None31.4%68.6%
Virginia133 counties, pooled by land areaVaries20.6%30.0%47.9%

The map rates the ground, not the air in any home.

Local help

Fluvanna County, Local resources

Radon testing and mitigation in Fluvanna County

What Virginia's program says
Phone
(804) 864-8161
Email
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

Fluvanna County, Questions

Questions about radon in Fluvanna County

Are radon levels high in Fluvanna County?

Over the 2008 to 2017 laboratory totals, 28.1% of the radon tests reported to CDC for Fluvanna County, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.5 pCi/L. Of 84 Virginia counties with 30 or more tests for the same period, 55 reported a higher share; pooled, the state comes to 30.4%.

Which counties border Fluvanna County?

Fluvanna County borders 5 counties: Albemarle County, Goochland County, Louisa County, Cumberland County and Buckingham County.

Products

Fluvanna County, Products

Testing a home in Fluvanna County

In Fluvanna County, 28.1% of 388 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 30.4% pooled across Virginia. In Zone 1 the year-round level in Fluvanna 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 monitors3

See every kit and monitor

Fluvanna County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Fluvanna County

Explore

Fluvanna County, Bordering counties

Counties bordering Fluvanna County

Calculated by Radon411

Fluvanna County, Cities and towns

Cities and towns in Fluvanna County

Fluvanna County is growing: the Census Bureau puts it at 28,975 residents on July 1, 2025, up 6.2% from 27,289 in 2020. That works out to 101 people per square mile of land. Scottsville, the largest place on its list (549 residents in all), extends beyond Fluvanna County, so no share of the total is worked out for it. Testing is reported here more often than across the state: CDC's 388 reported tests for 2008 to 2017 come to 13.4 for every 1,000 residents (2025 estimate), against 6.0 for Virginia.

Scottsville is the one incorporated place here; CDC publishes no figure by town, so it reads Fluvanna County's.

Scottsville, Fluvanna County: residents on July 1, 2025
PlaceResidentsSince 2020Share of residents
Scottsvilleextends beyond Fluvanna County549+5.2%Counted whole

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). A place that extends beyond Fluvanna County is counted whole, so it has no share.

Fluvanna County, Homes

Homes in Fluvanna County

Fluvanna County is a place of houses on their own lots: 90% of its 11,329 homes are detached single-family houses, against 61% across Virginia. Much of Fluvanna County is recent building: 34% of its homes have gone up since 2000 and the middle year built is 1995, against 1984 for Virginia. Owners live in 88% of the occupied homes (Virginia: 67%), so for most households a test and a fix are their own to order.

Homes in Fluvanna County, Virginia, 2019 to 2023
HomesFluvanna CountyVirginia
Housing units11,3293,654,784
Detached houses90%61%
In buildings of 5 or more2%19%
Mobile homes6%4%
Built before 196011%19%
Built since 200034%25%
Middle year built19951984
Owner-occupied88%67%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.