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Radon Levels in Poquoson city, Virginia

EPA puts Poquoson city in Zone 3, its lowest radon zone, and only 1 radon test from it is on file with CDC (2006 to 2015, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Nearest county

    5.9%

    Newport News city, 9 miles

    Newport News city
    5.9%
    Virginia
    30.7%

    Share at 4+ pCi/L, 34 tests, 2006 to 2015

  • Ground above low

    None

    77.9 pts below Virginia

    Poquoson city
    0.0%
    Virginia
    77.9%

    Share of land USGS rates moderate or high potential

  • Tests reported

    3

    Too few for a share

    Poquoson city
    3
    Needed
    30

    2005 to 2014, 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 Poquoson city

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

Poquoson city, At a glance

Poquoson city at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Poquoson city 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 77% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Poquoson city, 2006 to 2015, laboratory

CDC holds 1 reported test for Poquoson city over the 2006 to 2015 laboratory totals, a result of 0.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Poquoson city beside the counties around it is how this page reads it.

What these figures count

Only 1 test was reported to CDC for Poquoson city over 2006 to 2015 (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: 2006 to 2015, laboratory. Measured data period: 2005 to 2015 (every CDC figure on file).

How to read these figures

Poquoson city, Compared

Poquoson city radon figures, compared

Calculated by Radon411

CDC's largest figure for Poquoson city rests on 3 tests over the 2005 to 2014 laboratory totals, 2 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 35.3 pCi/L, with a middle value of 32.2 pCi/L.

The nearest counties with a figure are Newport News city (9 miles away) at 5.9%, Norfolk city (17 miles away) at 5.3% and James City County (27 miles away) at 38.4%. 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 Poquoson city in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 77% of the county's land low radon potential.

Virginia, the United States and the counties around Poquoson city, 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
York County, VAborders it2218.2%1.2 pCi/L
Hampton city, VAborders it205.0%0.1 pCi/L
The nearest Virginia counties to Poquoson city with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Newport News city9 mi345.9%1.4 pCi/L
Norfolk city17 mi575.3%0.7 pCi/L
James City County27 mi7338.4%2.4 pCi/L
Chesapeake city31 mi437.0%0.1 pCi/L
Virginia Beach city32 mi547.4%0.6 pCi/L
Henrico County64 mi57325.7%2.0 pCi/L
Richmond city67 mi44328.0%2.1 pCi/L
Chesterfield County70 mi64530.5%2.2 pCi/L
Poquoson city ten-year laboratory totals, against Virginia's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestVirginia, pooledChange from the row before
2006 to 201510.0%0.2 pCi/L0.2 pCi/L30.7%−66.7 points
2005 to 2014366.7%32.2 pCi/L35.3 pCi/L30.3%First on file

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

Poquoson city, Geology

The ground under Poquoson city

Predicted

USGS's geologic map puts all of Poquoson city's mapped land in one class: low radon potential. 76.8% of it lies in the area the map calls Quaternary Coastal Plain Sediments, to which USGS gives a radon index of 6, in the low band (5 to 8).

USGS's geologic areas under Poquoson city
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Quaternary Coastal Plain SedimentsQuaternary coastal sand and silt containing monazite.Low676.8%

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

Poquoson city beside the ground around it

Across Virginia 47.9% of the land is rated high; none of Poquoson city's is. None of the 2 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Poquoson city, the 2 counties bordering it and Virginia
AreaEPA zoneLow potentialModerate potentialHigh potential
Poquoson cityZone 376.8%NoneNone
Hampton cityZone 388.3%NoneNone
York CountyZone 385.4%NoneNone
Virginia133 counties, pooled by land areaVaries20.6%30.0%47.9%

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

Local help

Poquoson city, Local resources

Radon testing and mitigation in Poquoson city

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

Poquoson city, Questions

Questions about radon in Poquoson city

Are radon levels high in Poquoson city?

Over the 2006 to 2015 laboratory totals, 0.0% of the radon tests reported to CDC for Poquoson city, Virginia were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. Of the 8 nearest counties with a figure, within 70 miles, the share of tests at or above 4 pCi/L runs from 5.3% to 38.4%.

Which counties border Poquoson city?

Poquoson city borders 2 counties: Hampton city and York County.

Products

Poquoson city, Products

Testing a home in Poquoson city

No CDC figure names Poquoson city; the nearest county with one, Newport News city (9 miles away), reported 5.9% 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 Poquoson city.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Poquoson city homes, compared

Explore

Poquoson city, Bordering counties

Counties bordering Poquoson city

Calculated by Radon411

Poquoson city, Cities and towns

Cities and towns in Poquoson city

Poquoson city is growing: the Census Bureau puts it at 13,292 residents on July 1, 2025, up 6.6% from 12,472 in 2020. That works out to 866 people per square mile of land. Poquoson, its one incorporated place, has 13,292 residents, 100.0% of the total. Reported testing is thin here: 3 tests over 2005 to 2014, or 0.2 for every 1,000 residents (2025 estimate), where Virginia as a whole comes to 4.4.

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

Poquoson, Poquoson city: residents on July 1, 2025
PlaceResidentsSince 2020Share of residents
Poquoson13,292+6.6%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).

Poquoson city, Homes

Homes in Poquoson city

Poquoson city is a place of houses on their own lots: 89% of its 4,945 homes are detached single-family houses, against 61% across Virginia. Half of its homes were built before 1977, close to Virginia's 1984: 24% date from before 1960 and 15% from 2000 or later. Owners live in 85% of the occupied homes (Virginia: 67%), so for most households a test and a fix are their own to order.

Homes in Poquoson city, Virginia, 2019 to 2023
HomesPoquoson cityVirginia
Housing units4,9453,654,784
Detached houses89%61%
In buildings of 5 or more2%19%
Mobile homes1%4%
Built before 196024%19%
Built since 200015%25%
Middle year built19771984
Owner-occupied85%67%

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