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Radon Levels in Saratoga County, New York

EPA puts Saratoga County in Zone 2, its middle radon zone, and only 17 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

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  • Share at 4+ pCi/L

    22.3%

    2.2 pts below NY

    Saratoga
    22.3%
    New York
    24.5%

    4,449 tests, 2008 to 2017

  • Median result

    2.0pCi/L

    Below action level

    Saratoga
    2.0 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    4,449

    5th of 61 by tests

    Saratoga
    4,449
    Erie
    13,822

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

  • Rank in New York

    34 of 61

    Middle half

    Saratoga
    22.3%
    Chemung
    52.3%

    By share, of 61 with 30+ tests

Read a result for Saratoga County

Starts at Saratoga County's median, 2.0 pCi/L

2.0pCi/L

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

EPA’s reading of 2.0 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. Saratoga County's median reported result, 2008 to 2017.

Interpret this readingWhat a fix costs

The data

Saratoga County, At a glance

Saratoga County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Saratoga County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

USGS geologic potential: Moderate across 66% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Saratoga County, 2023

Share of reported tests at or above 4 pCi/L, by year, Saratoga County
Share of reported tests at or above 4 pCi/L, by year, Saratoga County
YearShare of reported tests at or above 4 pCi/L
201430.5%
201533.3%
201623.0%
201723.5%
201828.3%
201913.2%
202025.6%
202121.4%
202225.0%
202323.5%

2023: 23.5%. Across these years the share ran from 13.2% to 33.3%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

Only 17 tests were reported to CDC for Saratoga 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

Saratoga County, Compared

Saratoga County radon figures, compared

Calculated by Radon411

Saratoga County's 4,449 reported tests over the 2008 to 2017 laboratory totals had a middle value of 2.0 pCi/L and a maximum of 166.9 pCi/L, and 22.3% reached 4 pCi/L. New York as a whole (62 New York counties, pooled) comes to 24.5%: 2.2 points higher than here.

The newest figure, in 2023, counts only 17 tests (23.5% at or above 4 pCi/L), too few to compare, so this reading uses the 4,449-test figure.

Among its state's counties it ranks 34th of 61 New York counties with 30 or more tests for the same period. Statewide for the same period, Chemung County reported the highest share (52.3%) and Bronx County the lowest (3.2%).

Below the action level, 2,157 tests (48.5%) came in under 2 pCi/L, against 51.7% statewide, and 1,298 tests (29.2%) fell between 2 and 4, against 23.7% statewide. The busiest year on file was 2017, with 136 tests reported; the quietest, 2022, had 12.

EPA's 1993 zone map puts Saratoga County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 66% of the county's land moderate radon potential.

Next door, the shares run from 11.7% in Fulton County to 29.5% in Rensselaer County, with Schenectady County, Albany County and Warren County below Saratoga County. Over 7 years of annual figures the share fell 4.9 points, from 30.5% in 2014 to 25.6% in 2020; its peak was 33.3% in 2015.

CDC also counts 85 tests taken after mitigation in Saratoga County for the same period: tests in homes where a fix was already in.

Share of reported tests at or above 4 pCi/L by year, Saratoga County against New York2014 to 2020, years with 30 or more tests: Saratoga County 30.5% to 25.6%, the state's pooled share 22.7% in 2020.
Saratoga CountyNew York, pooled
Share of reported tests at or above 4 pCi/L by year, Saratoga County against New York: data table
YearTestsSaratoga County, at or above 4 pCi/LNew York, pooled
20148230.5%16.6%
20157233.3%21.4%
201611323.0%20.4%
201713623.5%31.6%
20185328.3%26.9%
201912113.2%28.0%
20204325.6%22.7%
Saratoga County against New York, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Saratoga County
Saratoga County4,44922.3%2.0 pCi/LThis county
New York, pooled62 counties, pooled97,14524.5%Not pooled+2.2 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+13.4 points
Chemung Countyhighest in the state1,53752.3%4.3 pCi/L+30.0 points
Bronx Countylowest in the state1853.2%0.5 pCi/L−19.1 points
Rensselaer County, NYborders it1,57729.5%2.1 pCi/L+7.2 points
Hamilton County, NYborders it1127.3%1.5 pCi/L+5.0 points
Washington County, NYborders it1,59325.6%2.0 pCi/L+3.3 points
Schenectady County, NYborders it2,02817.3%1.7 pCi/L−5.0 points
Albany County, NYborders it2,74015.7%1.4 pCi/L−6.6 points
Warren County, NYborders it2,55315.7%1.6 pCi/L−6.6 points
Montgomery County, NYborders it25214.7%1.6 pCi/L−7.6 points
Fulton County, NYborders it33411.7%1.2 pCi/L−10.6 points
Where Saratoga County's reported results fell, 2008 to 2017, laboratory, beside New York and the United States
ResultSaratoga County testsSaratoga County shareNew York shareU.S. shareAgainst New York
Under 2 pCi/L2,15748.5%51.7%39.6%−3.2 points
2 to 4 pCi/L1,29829.2%23.7%24.7%+5.5 points
4 pCi/L and above99422.3%24.5%35.7%−2.2 points
Saratoga 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
Wayne County29 of 6179326.9%2.0 pCi/L
Washington County30 of 611,59325.6%2.0 pCi/L
Broome County31 of 615,89924.9%1.8 pCi/L
Putnam County32 of 611,02024.7%1.9 pCi/L
Orleans County33 of 6114324.5%2.0 pCi/L
Saratoga County34 of 614,44922.3%2.0 pCi/L
Franklin County35 of 613221.9%1.0 pCi/L
Schoharie County36 of 6150421.8%1.7 pCi/L
Seneca County37 of 6131921.3%2.0 pCi/L
Lewis County38 of 6110920.2%1.4 pCi/L
Sullivan County39 of 6125719.8%1.3 pCi/L
Saratoga County radon tests by year, against New York's pooled share
YearTestsAt or above 4 pCi/LMedianHighestNew York, pooledChange from the row before
20231723.5%1.5 pCi/L6.3 pCi/L32.0%−1.5 points
20221225.0%2.0 pCi/L4.5 pCi/L22.4%+3.6 points
20211421.4%2.3 pCi/L7.8 pCi/L18.9%−4.2 points
20204325.6%2.1 pCi/L38.4 pCi/L22.7%+12.4 points
201912113.2%1.0 pCi/L11.3 pCi/L28.0%−15.1 points
20185328.3%2.2 pCi/L54.8 pCi/L26.9%+4.8 points
201713623.5%1.8 pCi/L11.7 pCi/L31.6%+0.5 points
201611323.0%1.9 pCi/L29.2 pCi/L20.4%−10.3 points
20157233.3%2.0 pCi/L16.0 pCi/L21.4%+2.8 points
20148230.5%1.8 pCi/L114.5 pCi/L16.6%First on file

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

Saratoga County, State data

New York's own radon test data

Measured

What New York's own agencies publish about radon tests in Saratoga 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 Saratoga 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

25.9%

Average result

3.2 pCi/L

Tests behind these figures

88.8 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.

Saratoga County, Geology

The ground under Saratoga County

Predicted

USGS's geologic map splits Saratoga County: 66.3% of its land is moderate radon potential and 0.2% high and 33.5% low. The map puts 66.3% of Saratoga County in the area it calls Hudson-Mohawk Lowland and 33.5% in Adirondacks. USGS gives the first a radon index of 11, in the moderate band (9 to 11), and the second 8, in the low band (5 to 8).

USGS's geologic areas under Saratoga County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Hudson-Mohawk LowlandSandstone, siltstone, shale, and conglomerates.Moderate1166.3%
AdirondacksAnorthosite and charnockitic gneisses.Low833.5%

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

Saratoga County beside the ground around it

New York as a whole has more high-potential ground than Saratoga County: 48.9% of its land, against 0.2% here. Of the 8 counties that border it, 3 have more high-potential ground, Rensselaer County the most at 96.8%.

Share of land by USGS radon potential: Saratoga County, the 8 counties bordering it and New York
AreaEPA zoneLow potentialModerate potentialHigh potential
Saratoga CountyZone 233.5%66.3%0.2%
Schenectady CountyZone 2None100%None
Fulton CountyZone 362.1%37.9%None
Warren CountyZone 394.3%5.7%None
Washington CountyZone 120.9%25.4%53.7%
Rensselaer CountyZone 1None3.2%96.8%
Montgomery CountyZone 20.1%99.9%None
Albany CountyZone 1None42.8%57.2%
Hamilton CountyZone 3100%NoneNone
New York62 counties, pooled by land areaVaries22.0%28.2%48.9%

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

Local help

Saratoga County, Local resources

Radon testing and mitigation in Saratoga County

Listed radon businesses with an address in Saratoga County:

Listed radon professionals by town: South Glens Falls

What New York's program says
Phone
518-402-7556
Email
radon@health.ny.gov
Licensing of radon professionals
NYS does not certify or license radon testers.

What it means

Saratoga County, Questions

Questions about radon in Saratoga County

Are radon levels high in Saratoga County?

In 2023, 23.5% of the radon tests reported to CDC for Saratoga County, New York were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.5 pCi/L. Of 61 New York counties with 30 or more tests for the same period, 33 reported a higher share; pooled, the state comes to 24.5%.

Which counties border Saratoga County?

Saratoga County borders 8 counties: Schenectady County, Fulton County, Warren County, Washington County, Rensselaer County, Montgomery County, Albany County and Hamilton County.

Products

Saratoga County, Products

Testing a home in Saratoga County

In Saratoga County, 22.3% of 4,449 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 24.5% pooled across New York. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Saratoga County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Saratoga County homes, compared

Explore

Saratoga County, Bordering counties

Counties bordering Saratoga County

Calculated by Radon411

Saratoga County, Cities and towns

Cities and towns in Saratoga County

The Census Bureau estimates 241,343 residents in Saratoga County for July 1, 2025, 5,528 more than in 2020 (+2.3%). That works out to 298 people per square mile of land. No town dominates: Saratoga Springs, the largest, has 28,768 residents, 11.9% of the total. Together its 11 incorporated places hold 21.5% of those residents; the other 78.5% live outside any of them. Testing is reported here more often than across the state: CDC's 4,449 reported tests for 2008 to 2017 come to 18.4 for every 1,000 residents (2025 estimate), against 4.9 for New York.

From Saratoga Springs to Galway, CDC publishes no figure by town: each reads Saratoga County's.

The cities and towns in Saratoga County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Saratoga Springs28,768+0.8%11.9%
Mechanicville5,021−2.4%2.1%
Ballston Spa4,900−4.5%2.0%
South Glens Falls3,704−1.1%1.5%
Corinth2,626+2.5%1.1%
Waterford1,999−1.5%0.8%
Stillwater1,751−0.4%0.7%
Schuylerville1,348−1.1%0.6%
Round Lake849+4.2%0.4%
Victory676−0.4%0.3%
Galway206−3.7%Under 0.1%

11 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).

Saratoga County, Homes

Homes in Saratoga County

Of Saratoga County's 111,127 homes, 62% are detached houses, against 41% across New York; 14% are in buildings of five or more homes. Much of Saratoga County is recent building: 27% of its homes have gone up since 2000 and the middle year built is 1984, against 1958 for New York. 72% of occupied homes are lived in by their owner (New York: 54%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Saratoga County, New York, 2019 to 2023
HomesSaratoga CountyNew York
Housing units111,1278,539,536
Detached houses62%41%
In buildings of 5 or more14%34%
Mobile homes7%2%
Built before 196024%53%
Built since 200027%12%
Middle year built19841958
Owner-occupied72%54%

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