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Radon Levels in Pulaski County, Virginia

EPA puts Pulaski County in Zone 1, its highest radon zone, and high results are common there: 49.6% of the 268 radon tests reported to CDC (2008 to 2017, laboratory totals) came back 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

How to test this homeFind a certified tester

  • Share at 4+ pCi/L

    49.6%

    19.2 pts above VA

    Pulaski
    49.6%
    Virginia
    30.4%

    268 tests, 2008 to 2017

  • Median result

    3.9pCi/L

    Below action level

    Pulaski
    3.9 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    268

    40th of 84 by tests

    Pulaski
    268
    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

    13 of 84

    Top quarter

    Pulaski
    49.6%
    Russell
    67.3%

    By share, of 84 with 30+ tests

Read a result for Pulaski County

Starts at Pulaski County's median, 3.9 pCi/L

3.9pCi/L

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

EPA’s reading of 3.9 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. Pulaski County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Pulaski County, At a glance

Pulaski County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA puts all of Pulaski 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 98% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

Reported results by concentration band, Pulaski County, 2008 to 2017, laboratory
Under 2 pCi/L: 29%2 to 4 pCi/L: 21%4 pCi/L and above: 50%

Of 268 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Pulaski County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L7929.5%
2 to 4 pCi/L5620.9%
4 pCi/L and above13349.6%
What these figures count

These are the 268 tests reported to CDC for Pulaski 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

Pulaski County, Compared

Pulaski County radon figures, compared

Calculated by Radon411

In Pulaski County, about 5 in 10 reported tests over the 2008 to 2017 laboratory totals (133 of 268) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 13.9 points higher. Across 131 Virginia counties pooled together, 30.4% of tests reached that level, so Pulaski County runs 19.2 points above its state.

Of 6 neighbours with a figure, 3 reported a larger share at or above 4 pCi/L and 3 a smaller one; the spread is 35.5% (Montgomery County) to 65.5% (Wythe County). By share, Pulaski County is 13th of 84 Virginia counties with 30 or more tests for the same period.

Half the tests came in under 3.9 pCi/L and half over it; the single highest reached 77.1 pCi/L. Below the action level, 79 tests (29.5%) came in under 2 pCi/L, against 44.7% statewide, and 56 tests (20.9%) fell between 2 and 4, against 24.9% statewide.

Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 49.6% share point the same way here. USGS geology rates 98% of the county's land high radon potential. CDC also counts 28 tests taken after mitigation in Pulaski County for the same period: tests in homes where a fix was already in.

CDC's ten-year totals for Pulaski County went from 213 tests (2005 to 2014) to 268 (2008 to 2017), the share going from 54.0% to 49.6%.

Pulaski County against Virginia, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Pulaski County
Pulaski County26849.6%3.9 pCi/LThis county
Virginia, pooled131 counties, pooled53,19930.4%Not pooled−19.2 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled−13.9 points
Russell Countyhighest in the state4967.3%6.7 pCi/L+17.7 points
Norfolk citylowest in the state732.7%0.5 pCi/L−46.9 points
Wythe County, VAborders it11965.5%6.0 pCi/L+15.9 points
Carroll County, VAborders it8961.8%5.0 pCi/L+12.2 points
Giles County, VAborders it17456.9%4.8 pCi/L+7.3 points
Bland County, VAborders it1346.2%2.6 pCi/L−3.4 points
Floyd County, VAborders it5442.6%3.3 pCi/L−7.0 points
Radford city, VAborders it9841.8%3.2 pCi/L−7.8 points
Montgomery County, VAborders it97035.5%2.5 pCi/L−14.1 points
Where Pulaski County's reported results fell, 2008 to 2017, laboratory, beside Virginia and the United States
ResultPulaski County testsPulaski County shareVirginia shareU.S. shareAgainst Virginia
Under 2 pCi/L7929.5%44.7%39.6%−15.2 points
2 to 4 pCi/L5620.9%24.9%24.7%−4.0 points
4 pCi/L and above13349.6%30.4%35.7%+19.2 points
Pulaski 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
Staunton city8 of 8433852.7%4.2 pCi/L
Bristol city9 of 8411050.9%4.2 pCi/L
Rockbridge County10 of 8411450.9%4.0 pCi/L
Scott County11 of 847550.7%4.0 pCi/L
Augusta County12 of 8462550.1%4.0 pCi/L
Pulaski County13 of 8426849.6%3.9 pCi/L
Waynesboro city14 of 8419648.5%3.8 pCi/L
Clarke County15 of 8435047.7%3.5 pCi/L
King George County16 of 8448845.5%3.6 pCi/L
Winchester city17 of 8477344.8%3.3 pCi/L
Grayson County18 of 844744.7%3.8 pCi/L
Pulaski County ten-year laboratory totals, against Virginia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestVirginia, pooledChange from the row before
2008 to 201726849.6%3.9 pCi/L77.1 pCi/L30.4%+1.1 points
2007 to 201626248.5%3.8 pCi/L117.1 pCi/L30.6%−2.5 points
2006 to 201525151.0%4.0 pCi/L117.1 pCi/L30.7%−3.0 points
2005 to 201421354.0%4.3 pCi/L117.1 pCi/L30.3%First on file

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

Pulaski County, Geology

The ground under Pulaski County

Predicted

Most of the ground under Pulaski County is one class on USGS's geologic map: 97.5% of its land is high radon potential, with 2.5% moderate. 97.5% of it lies in the area the map calls Valley and Ridge, to which USGS gives a radon index of 15, in the high band (12 to 17).

USGS's geologic areas under Pulaski County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Valley and RidgeCambrian dolomite, limestone, shale, and sandstone, Silurian-Ordovician limestone, dolomite, shale, and sandstone, Mississippian-Devonian sandstone, shale, limestone, gypsum, and coal.High1597.5%
Blue RidgeGranite, pegmatite, monazite, schist, and gneiss.Moderate102.5%

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

Pulaski County beside the ground around it

Pulaski County has more high-potential ground than Virginia as a whole: 97.5% of its land against 47.9%. Of the 7 counties that border it, 4 have more high-potential ground, Radford city the most at 100%.

Share of land by USGS radon potential: Pulaski County, the 7 counties bordering it and Virginia
AreaEPA zoneLow potentialModerate potentialHigh potential
Pulaski CountyZone 1None2.5%97.5%
Radford cityZone 1NoneNone100%
Giles CountyZone 1NoneNone100%
Bland CountyZone 1NoneNone100%
Floyd CountyZone 2None100%None
Wythe CountyZone 1None0.2%99.8%
Carroll CountyZone 2None96.1%3.9%
Montgomery CountyZone 1None13.0%87.0%
Virginia133 counties, pooled by land areaVaries20.6%30.0%47.9%

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

Local help

Pulaski County, Local resources

Radon testing and mitigation in Pulaski 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

Pulaski County, Questions

Questions about radon in Pulaski County

Are radon levels high in Pulaski County?

Over the 2008 to 2017 laboratory totals, 49.6% of the radon tests reported to CDC for Pulaski County, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.9 pCi/L. Of 84 Virginia counties with 30 or more tests for the same period, 12 reported a higher share; pooled, the state comes to 30.4%.

Which counties border Pulaski County?

Pulaski County borders 7 counties: Radford city, Giles County, Bland County, Floyd County, Wythe County, Carroll County and Montgomery County.

Products

Pulaski County, Products

Testing a home in Pulaski County

In Pulaski County, 49.6% of 268 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 Pulaski 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

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

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Pulaski County, Bordering counties

Counties bordering Pulaski County

Calculated by Radon411

Pulaski County, Cities and towns

Cities and towns in Pulaski County

About 33,586 people live in Pulaski County by the Census Bureau's estimate for July 1, 2025, 220 fewer than in 2020 (−0.7%). That works out to 105 people per square mile of land. Its largest town, Pulaski, has 8,807 residents, 26.2% of the total. Together its 2 incorporated places hold 34.1% of those residents; the other 65.9% live outside any of them. CDC's 268 reported tests for 2008 to 2017 work out to 8.0 per 1,000 residents (2025 estimate), close to Virginia's 6.0.

From Pulaski to Dublin, CDC publishes no figure by town: each reads Pulaski County's.

The cities and towns in Pulaski County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Pulaski8,807−1.9%26.2%
Dublin2,652−1.3%7.9%

2 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).

Pulaski County, Homes

Homes in Pulaski County

Of Pulaski County's 17,039 homes, 72% are detached houses, against 61% across Virginia; 13% are mobile homes. The homes are older than Virginia's as a whole: half were built before 1975 (1984 for Virginia), and 29% date from before 1960. 72% of occupied homes are lived in by their owner (Virginia: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Pulaski County, Virginia, 2019 to 2023
HomesPulaski CountyVirginia
Housing units17,0393,654,784
Detached houses72%61%
In buildings of 5 or more7%19%
Mobile homes13%4%
Built before 196029%19%
Built since 200015%25%
Middle year built19751984
Owner-occupied72%67%

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