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Radon Levels in New Kent County, Virginia

EPA puts New Kent County in Zone 3, its lowest radon zone, and only 13 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

    38.4%

    James City County

    James City
    38.4%
    Hanover
    16.0%

    3 of 6 neighbours have 30+ tests, 2006 to 2015

  • Nearest county

    38.4%

    James City County, 17 miles

    James City
    38.4%
    Virginia
    30.7%

    Share at 4+ pCi/L, 73 tests, 2006 to 2015

  • Ground above low

    None

    77.9 pts below Virginia

    New Kent
    0.0%
    Virginia
    77.9%

    Share of land USGS rates moderate or high potential

  • Tests reported

    14

    Too few for a share

    New Kent
    14
    Needed
    30

    2007 to 2016, laboratory

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for New Kent County

Starts at EPA's action level

4.0pCi/L

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

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

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

New Kent County, At a glance

New Kent County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for New Kent County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

USGS geologic potential: Low across 95% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for New Kent County, 2008 to 2017, laboratory

CDC holds 13 reported tests for New Kent County over the 2008 to 2017 laboratory totals, with a median of 2.4 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). New Kent County beside the counties around it is how this page reads it.

What these figures count

Only 13 tests were reported to CDC for New Kent 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).

How to read these figures

New Kent County, Compared

New Kent County radon figures, compared

Calculated by Radon411

CDC's largest figure for New Kent County rests on 14 tests over the 2007 to 2016 laboratory totals, 5 of them at or above 4 pCi/L, so each test moves its share by 7.1 points and no rank or comparison is drawn from it. Results reached as high as 29.1 pCi/L, with a middle value of 2.5 pCi/L.

Of the counties bordering it, 3 have a figure over the 2006 to 2015 laboratory totals: James City County reported the largest share at or above 4 pCi/L, 38.4%, and Hanover County the smallest, 16.0%, with Henrico County at 25.7% between. Farther out, Richmond city (26 miles away) at 28.0%, Chesterfield County (34 miles away) at 30.5% and Newport News city (38 miles away) at 5.9% 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 New Kent County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 95% of the county's land low radon potential.

Virginia, the United States and the counties around New Kent County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
Virginia, pooled132 counties, pooled44,81730.7%Not pooled
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Russell Countyhighest in the state5468.5%6.7 pCi/L
Norfolk citylowest in the state575.3%0.7 pCi/L
James City County, VAborders it7338.4%2.4 pCi/L
Charles City County, VAborders it333.3%2.1 pCi/L
King and Queen County, VAborders it728.6%2.4 pCi/L
Henrico County, VAborders it57325.7%2.0 pCi/L
King William County, VAborders it616.7%2.3 pCi/L
Hanover County, VAborders it14416.0%1.4 pCi/L
The nearest Virginia counties to New Kent County with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
James City County17 mi7338.4%2.4 pCi/L
Henrico County23 mi57325.7%2.0 pCi/L
Richmond city26 mi44328.0%2.1 pCi/L
Hanover County32 mi14416.0%1.4 pCi/L
Chesterfield County34 mi64530.5%2.2 pCi/L
Newport News city38 mi345.9%1.4 pCi/L
Caroline County41 mi13536.3%2.6 pCi/L
Westmoreland County43 mi3514.3%1.6 pCi/L
New Kent County ten-year laboratory totals, against Virginia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestVirginia, pooledChange from the row before
2008 to 20171330.8%2.4 pCi/L29.1 pCi/L30.4%−4.9 points
2007 to 20161435.7%2.5 pCi/L29.1 pCi/L30.6%−6.0 points
2006 to 20151241.7%2.8 pCi/L29.1 pCi/L30.7%+1.7 points
2005 to 20141040.0%2.8 pCi/L29.1 pCi/L30.3%First on file

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

New Kent County, Geology

The ground under New Kent County

Predicted

USGS's geologic map puts all of New Kent County's mapped land in one class: low radon potential. 95.1% of it lies in the area the map calls Tertiary Coastal Plain Sediments, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under New Kent County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Tertiary Coastal Plain SedimentsTertiary Coastal Plain sand, silt, clayLow895.1%

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

New Kent County beside the ground around it

Across Virginia 47.9% of the land is rated high; none of New Kent County's is. Of the 6 counties that border it, 2 have more high-potential ground, Hanover County the most at 52.2%.

Share of land by USGS radon potential: New Kent County, the 6 counties bordering it and Virginia
AreaEPA zoneLow potentialModerate potentialHigh potential
New Kent CountyZone 395.1%NoneNone
Charles City CountyZone 392.5%NoneNone
King and Queen CountyZone 398.2%NoneNone
James City CountyZone 393.5%NoneNone
King William CountyZone 395.8%NoneNone
Henrico CountyZone 374.0%0.9%25.2%
Hanover CountyZone 347.8%None52.2%
Virginia133 counties, pooled by land areaVaries20.6%30.0%47.9%

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

Local help

New Kent County, Local resources

Radon testing and mitigation in New Kent 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

New Kent County, Questions

Questions about radon in New Kent County

Are radon levels high in New Kent County?

Over the 2008 to 2017 laboratory totals, 30.8% of the radon tests reported to CDC for New Kent County, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.4 pCi/L. Of the counties bordering it, 3 have a figure over the 2006 to 2015 laboratory totals: James City County reported the largest share at or above 4 pCi/L, 38.4%, and Hanover County the smallest, 16.0%, with Henrico County at 25.7% between.

Which counties border New Kent County?

New Kent County borders 6 counties: Charles City County, King and Queen County, James City County, King William County, Henrico County and Hanover County.

Products

New Kent County, Products

Testing a home in New Kent County

No CDC figure names New Kent County; the nearest county with one, James City County (17 miles away), reported 38.4% 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. 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 New Kent County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for New Kent County homes, compared

Explore

New Kent County, Bordering counties

Counties bordering New Kent County

Calculated by Radon411

New Kent County, Residents

Who lives in New Kent County

New Kent County is growing: the Census Bureau puts it at 28,022 residents on July 1, 2025, up 21.2% from 23,118 in 2020. That works out to 133 people per square mile of land. Reported testing is thin here: 14 tests over 2007 to 2016, or 0.5 for every 1,000 residents (2025 estimate), where Virginia as a whole comes to 5.6.

Census lists no incorporated place in New Kent County: every home in it reads the county's figures.

Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).

New Kent County, Homes

Homes in New Kent County

New Kent County is a place of houses on their own lots: 94% of its 9,495 homes are detached single-family houses, against 61% across Virginia. Much of New Kent County is recent building: 44% of its homes have gone up since 2000 and the middle year built is 1995, against 1984 for Virginia. Owners live in 92% of the occupied homes (Virginia: 67%), so for most households a test and a fix are their own to order.

Homes in New Kent County, Virginia, 2019 to 2023
HomesNew Kent CountyVirginia
Housing units9,4953,654,784
Detached houses94%61%
In buildings of 5 or more1%19%
Mobile homes3%4%
Built before 196012%19%
Built since 200044%25%
Middle year built19951984
Owner-occupied92%67%

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