Skip to content

Locations and reports

Radon Levels in Queens County, New York

EPA puts Queens County in Zone 3, its lowest radon zone, and only 11 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Share at 4+ pCi/L

    5.3%

    19.2 pts below NY

    Queens
    5.3%
    New York
    24.5%

    419 tests, 2008 to 2017

  • Median result

    0.8pCi/L

    Below action level

    Queens
    0.8 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    419

    43rd of 61 by tests

    Queens
    419
    Erie
    13,822

    Reported to CDC before any fix, 2008 to 2017

  • 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

  • Rank in New York

    59 of 61

    Lowest quarter

    Queens
    5.3%
    Chemung
    52.3%

    By share, of 61 with 30+ tests

Read a result for Queens County

Starts at Queens County's median, 0.8 pCi/L

0.8pCi/L

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

EPA’s reading of 0.8 pCi/L

Below 2 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 below 2 pCi/L, the level at which EPA says a fix should be considered. Queens County's median reported result, 2008 to 2017.

The data

Queens County, At a glance

Queens County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Queens 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 86% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Queens County, 2023

Share of reported tests at or above 4 pCi/L, by year, Queens County
Share of reported tests at or above 4 pCi/L, by year, Queens County
YearShare of reported tests at or above 4 pCi/L
20140.0%
20150.0%
20160.0%
20170.0%
20180.0%
20190.0%
20200.0%
202133.3%
20220.0%
20239.1%

2023: 9.1%. Across these years the share ran from 0.0% to 33.3%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

Only 11 tests were reported to CDC for Queens County over 2023, 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: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).

How to read these figures

Queens County, Compared

Queens County radon figures, compared

Calculated by Radon411

Queens County reports fewer high tests than New York overall. 5.3% of its 419 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 19.2 points below the 24.5% pooled from 62 New York counties.

The newest figure, in 2023, counts only 11 tests (9.1% at or above 4 pCi/L), too few to compare, so this reading uses the 419-test figure.

Ordered from highest share down, it comes 59th of 61 New York counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Queens County sits 30.4 points below it.

Next door, the shares run from 3.2% in Bronx County to 8.1% in Kings County, with Nassau County and Bronx County below Queens County. Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 5.3% share point the same way here.

Half the tests came in under 0.8 pCi/L and half over it; the single highest reached 135.6 pCi/L. The rest split 82.6% under 2 pCi/L and 12.2% from 2 to 4 (New York: 51.7% and 23.7%).

The busiest year on file was 2017, with 14 tests reported; the quietest, 2021, had 3.

Queens County against New York, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Queens County
Queens County4195.3%0.8 pCi/LThis county
New York, pooled62 counties, pooled97,14524.5%Not pooled+19.2 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+30.4 points
Chemung Countyhighest in the state1,53752.3%4.3 pCi/L+47.0 points
Suffolk Countylowest in the state5518.0%1.1 pCi/L+2.7 points
Kings County, NYborders it7078.1%0.7 pCi/L+2.8 points
New York County, NYborders it7597.1%0.2 pCi/L+1.8 points
Nassau County, NYborders it6315.2%1.0 pCi/L−0.1 points
Bronx County, NYborders it1853.2%0.5 pCi/L−2.1 points
Where Queens County's reported results fell, 2008 to 2017, laboratory, beside New York and the United States
ResultQueens County testsQueens County shareNew York shareU.S. shareAgainst New York
Under 2 pCi/L34682.6%51.7%39.6%+30.9 points
2 to 4 pCi/L5112.2%23.7%24.7%−11.5 points
4 pCi/L and above225.3%24.5%35.7%−19.2 points
Queens County ranked among the 61 New York counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
St. Lawrence County51 of 6115113.2%1.2 pCi/L
Fulton County52 of 6133411.7%1.2 pCi/L
Richmond County53 of 6130011.7%1.0 pCi/L
Essex County54 of 6113310.5%1.3 pCi/L
Kings County55 of 617078.1%0.7 pCi/L
Clinton County56 of 61758.0%1.4 pCi/L
Suffolk County57 of 615518.0%1.1 pCi/L
New York County58 of 617597.1%0.2 pCi/L
Queens County59 of 614195.3%0.8 pCi/L
Nassau County60 of 616315.2%1.0 pCi/L
Bronx County61 of 611853.2%0.5 pCi/L
Queens County radon tests by year, against New York's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNew York, pooledChange from the row before
2023119.1%0.5 pCi/L10.9 pCi/L32.0%+9.1 points
202260.0%0.4 pCi/L0.7 pCi/L22.4%−33.3 points
2021333.3%3.0 pCi/L4.4 pCi/L18.9%+33.3 points
202070.0%0.9 pCi/L1.4 pCi/L22.7%Level
201960.0%0.6 pCi/L2.5 pCi/L28.0%Level
2018110.0%0.5 pCi/L1.6 pCi/L26.9%Level
2017140.0%0.6 pCi/L2.6 pCi/L31.6%Level
2016110.0%0.8 pCi/L1.7 pCi/L20.4%Level
201580.0%0.8 pCi/L2.2 pCi/L21.4%Level
2014100.0%0.8 pCi/L1.8 pCi/L16.6%First on file

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

Queens County, State data

New York's own radon test data

Measured

What New York's own agencies publish about radon tests in Queens County, with their period. These are not CDC's figures and are never added to them.

MeasuredState figures, not CDC's

What the New York State Department of Health reports for Queens County

Indoor air radon testing data (Environmental Public Health Tracker): short-term charcoal canister tests requested through the NYSDOH Radon Program, presented as five-year rolling averages. Period: 2015-2019. The publisher also lists 15 earlier periods.

Share at or above 4 pCi/L

0%

Average result

0.8 pCi/L

Tests behind these figures

10.6 tests a year on average

  • Every figure is a five-year rolling average: the average result is the rolling average of each year's mean, and the test count is an average per year.
  • The data only include tests requested through the NYSDOH Radon Program, and therefore may not capture all radon tests performed in a county.
  • The data include both screening tests and post-mitigation tests, as it is not always possible to tell them apart.
  • Radon testing by homeowners is optional in New York, so the values may not be representative of every home in the county.
  • These figures describe tests reported to the New York State Department of Health in this area. They count a different set of tests than CDC's figures and are not a reading of any one home.

Measured: New York State Department of Health data, 2015-2019.

Queens County, Geology

The ground under Queens County

Predicted

USGS's geologic map puts all of Queens County's mapped land in one class: low radon potential. 85.6% of it lies in the area the map calls Atlantic Coastal Plain, to which USGS gives a radon index of 7, in the low band (5 to 8).

USGS's geologic areas under Queens County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Atlantic Coastal PlainGlacial deposits and marine sediments.Low785.6%

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

Queens County beside the ground around it

Across New York 48.9% of the land is rated high; none of Queens County's is. Of the 4 counties that border it, 2 have more moderate-potential ground, New York County the most at 84.1%.

Share of land by USGS radon potential: Queens County, the 4 counties bordering it and New York
AreaEPA zoneLow potentialModerate potentialHigh potential
Queens CountyZone 385.6%NoneNone
Kings CountyZone 379.2%NoneNone
New York CountyZone 32.5%84.1%None
Nassau CountyZone 385.9%NoneNone
Bronx CountyZone 31.1%80.6%None
New York62 counties, pooled by land areaVaries22.0%28.2%48.9%

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

What it means

Queens County, Questions

Questions about radon in Queens County

Are radon levels high in Queens County?

In 2023, 9.1% of the radon tests reported to CDC for Queens County, New York were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Of 61 New York counties with 30 or more tests for the same period, 58 reported a higher share; pooled, the state comes to 24.5%.

Which counties border Queens County?

Queens County borders 4 counties: Kings County, New York County, Nassau County and Bronx County.

Products

Queens County, Products

Testing a home in Queens County

In Queens County, 5.3% of 419 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 24.5% pooled across New York. 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 Queens County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Queens County homes, compared

Explore

Queens County, Bordering counties

Counties bordering Queens County

Calculated by Radon411

Queens County, Cities and towns

Cities and towns in Queens County

About 2,358,182 people live in Queens County by the Census Bureau's estimate for July 1, 2025, 27,359 fewer than in 2020 (−1.1%). Packed into its land, that is 21,690 people per square mile. New York, the largest place on its list (8,584,629 residents in all), extends beyond Queens County, so no share of the total is worked out for it. Reported testing is thin here: 419 tests over 2008 to 2017, or 0.2 for every 1,000 residents (2025 estimate), where New York as a whole comes to 4.9.

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

New York, Queens County: residents on July 1, 2025
PlaceResidentsSince 2020Share of residents
New Yorkextends beyond Queens County8,584,629−1.9%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 Queens County is counted whole, so it has no share.

Queens County, Homes

Homes in Queens County

Queens County has 903,598 homes, and many share a building: 41% are in buildings of five or more, 19% are detached houses, against 41% across New York. Half of its homes were built before 1953, close to New York's 1958: 64% date from before 1960 and 9% from 2000 or later. Most occupied homes here are rented: owners live in 45% (New York: 54%). A tenant can run a test; a fix is the landlord's to make.

Homes in Queens County, New York, 2019 to 2023
HomesQueens CountyNew York
Housing units903,5988,539,536
Detached houses19%41%
In buildings of 5 or more41%34%
Mobile homesunder 1%2%
Built before 196064%53%
Built since 20009%12%
Middle year built19531958
Owner-occupied45%54%

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