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Radon Levels, Testing and Mitigation in New York

New York has 62 counties, with 34 classified as EPA Zone 1 (highest risk). With an average radon level of 7.5 pCi/L, New York state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.

New York is the 27th most expansive state in terms of size, and the third most populous. It also happens to be the seventh most densely populated state in the country.

New York does have an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.

7.5
Avg. pCi/L
62
Counties
34
Zone 1 Counties

New York Radon Map

New York radon levels by county
Zone 1 — High
Zone 2 — Moderate
Zone 3 — Low

New York Metro Areas

Explore radon data organized by metro region, including average levels, hotspot cities, and local mitigation professionals.

Albany Metro
5 cities
Binghamton Metro
5 cities
Buffalo Metro
5 cities
Kingston Metro
5 cities
Kiryas Joel Metro
5 cities
New York City Metro
5 cities
Rochester Metro
5 cities
Syracuse Metro
5 cities
Utica Metro
5 cities

Most Active Radon Markets in New York

Cities with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Brooklyn 10.80 pCi/L 5
Oneonta 6.50 pCi/L 4
Clifton Park 3.75 pCi/L 4
Elmira 15.00 pCi/L 3
Saugerties 10.67 pCi/L 3
Staten Island 4.00 pCi/L 3
New York 9.00 pCi/L 2
Yonkers 8.00 pCi/L 2
Horseheads 7.50 pCi/L 2
Poughkeepsie 16.00 pCi/L 1
Buffalo 4.00 pCi/L 1
Pelham 3.00 pCi/L 1

New York Counties by EPA Radon Zone

All 62 New York counties with their EPA radon zone classification and user-submitted average radon levels.

Zone 1 — High Risk
Predicted avg. indoor levels > 4.0 pCi/L
Zone 1 34 counties
Albany County Zone 1
Avg: 5.0 pCi/L
Allegany County Zone 1
Avg:
Broome County Zone 1
Avg: 12.0 pCi/L
Cattaraugus County Zone 1
Avg: 4.5 pCi/L
Cayuga County Zone 1
Avg: 5.0 pCi/L
Chautauqua County Zone 1
Avg: 2.0 pCi/L
Chemung County Zone 1
Avg: 11.7 pCi/L
Chenango County Zone 1
Avg: 7.2 pCi/L
Columbia County Zone 1
Avg: 6.2 pCi/L
Cortland County Zone 1
Avg: 12.0 pCi/L
Delaware County Zone 1
Avg: 6.6 pCi/L
Dutchess County Zone 1
Avg: 8.7 pCi/L
Erie County Zone 1
Avg: 10.7 pCi/L
Genesee County Zone 1
Avg: 10.0 pCi/L
Greene County Zone 1
Avg: 12.5 pCi/L
Livingston County Zone 1
Avg:
Madison County Zone 1
Avg: 3.0 pCi/L
Onondaga County Zone 1
Avg: 12.5 pCi/L
Ontario County Zone 1
Avg: 5.0 pCi/L
Orange County Zone 1
Avg: 6.7 pCi/L
Otsego County Zone 1
Avg: 10.6 pCi/L
Putnam County Zone 1
Avg: 8.2 pCi/L
Rensselaer County Zone 1
Avg: 8.7 pCi/L
Schoharie County Zone 1
Avg: 9.5 pCi/L
Schuyler County Zone 1
Avg: 4.0 pCi/L
Seneca County Zone 1
Avg: 12.0 pCi/L
Steuben County Zone 1
Avg: 15.5 pCi/L
Sullivan County Zone 1
Avg: 5.0 pCi/L
Tioga County Zone 1
Avg: 7.0 pCi/L
Tompkins County Zone 1
Avg: 6.0 pCi/L
Ulster County Zone 1
Avg: 7.4 pCi/L
Washington County Zone 1
Avg: 5.3 pCi/L
Wyoming County Zone 1
Avg:
Yates County Zone 1
Avg:
Zone 2 — Moderate Risk
Predicted avg. indoor levels 2–4 pCi/L
Zone 2 13 counties
Clinton County Zone 2
Avg: 5.7 pCi/L
Jefferson County Zone 2
Avg: 4.0 pCi/L
Lewis County Zone 2
Avg: 6.5 pCi/L
Monroe County Zone 2
Avg: 4.5 pCi/L
Montgomery County Zone 2
Avg: 4.3 pCi/L
Niagara County Zone 2
Avg: 7.3 pCi/L
Oneida County Zone 2
Avg: 6.4 pCi/L
Orleans County Zone 2
Avg:
Oswego County Zone 2
Avg:
Saratoga County Zone 2
Avg: 5.3 pCi/L
Schenectady County Zone 2
Avg: 9.5 pCi/L
St. Lawrence County Zone 2
Avg:
Wayne County Zone 2
Avg: 3.0 pCi/L
Zone 3 — Low Risk
Predicted avg. indoor levels < 2 pCi/L
Zone 3 15 counties
Bronx County Zone 3
Avg: 6.0 pCi/L
Essex County Zone 3
Avg: 20.0 pCi/L
Franklin County Zone 3
Avg:
Fulton County Zone 3
Avg: 4.0 pCi/L
Hamilton County Zone 3
Avg:
Herkimer County Zone 3
Avg: 12.0 pCi/L
Kings County Zone 3
Avg: 10.8 pCi/L
Nassau County Zone 3
Avg: 4.8 pCi/L
New York County Zone 3
Avg: 9.0 pCi/L
Queens County Zone 3
Avg: 4.0 pCi/L
Richmond County Zone 3
Avg: 4.0 pCi/L
Rockland County Zone 3
Avg: 6.3 pCi/L
Suffolk County Zone 3
Avg: 5.4 pCi/L
Warren County Zone 3
Avg: 9.8 pCi/L
Westchester County Zone 3
Avg: 5.5 pCi/L

New York Cities & Towns

Browse radon data for individual cities across New York. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.

Accord Acra Adams Adams Center Addison Adirondack Afton Akron Albany Albertson Albion Alcove Alden Alder Creek Alexander Alexandria Bay Alfred Alfred Station Allegany Alma Almond Alpine Alplaus Altamont Altmar Altona Amawalk Amenia Amityville Amsterdam Ancram Ancramdale Andes Andover Angelica Angola Antwerp Apalachin Appleton Arcade Ardsley Argyle Arkport Arkville Armonk Arverne Ashland Ashville Astoria Athens Athol Atlanta Atlantic Beach Attica Au Sable Forks Auburn Aurora Austerlitz Ava Averill Park Avoca Avon Babylon Bainbridge Baldwin Baldwin Place Baldwinsville Ballston Lake Ballston Spa Barker Barneveld Barrytown Barryville Barton Basom Batavia Bath Bay Shore Bayport Bayside Bayville Beacon Bear Mountain Bearsville Beaver Dams Bedford Bedford Hills Belfast Bellerose Bellmore Bellona Bellport Belmont Bemus Point Bergen Berkshire Berlin Berne Bernhards Bay Bethel Bethpage Big Flats Big Indian Binghamton Black Creek Black River Blauvelt Bliss Bloomfield Bloomingburg Bloomingdale Bloomington Bloomville Blossvale Blue Mountain Lake Blue Point Bohemia Boiceville Bolivar Bolton Landing Bombay Boonville Boston Bouckville Bovina Center Bowmansville Bradford Brainard Branchport Brant Lake Brasher Falls Breesport Breezy Point Brentwood Brewerton Brewster Briarcliff Manor Bridgeport Brier Hill Brightwaters Broadalbin Brockport Brocton Bronx Bronxville Brookfield Brookhaven Brooklyn Brooktondale Brushton Buchanan Buffalo Burdett Burke Burlington Flats Burnt Hills Burt Buskirk Byron Cadyville Cairo Calcium Caledonia Callicoon Calverton Cambria Heights Cambridge Camden Cameron Cameron Mills Camillus Campbell Campbell Hall Canaan Canajoharie Canandaigua Canaseraga Canastota Candor Caneadea Canisteo Canton Cape Vincent Carle Place Carlisle Carmel Caroga Lake Carthage Cassadaga Cassville Castile Castle Creek Castleton On Hudson Castorland Cato Catskill Cattaraugus Cayuga Cayuta Cazenovia Cedarhurst Center Moriches Centereach Centerport Central Bridge Central Islip Central Square Central Valley Ceres Chadwicks Chaffee Champlain Chappaqua Charlotteville Chase Mills Chateaugay Chatham Chaumont Chazy Chemung Chenango Forks Cherry Creek Cherry Valley Chester Chestertown Chichester Childwold Chittenango Churchville Churubusco Cicero Cincinnatus Circleville Clarence Clarence Center Clarksville Claryville Claverack Clay Clayton Clayville Clemons Cleveland Clifton Park Clifton Springs Climax Clinton Clinton Corners Clintondale Clyde Clymer Cobleskill Cochecton Coeymans Hollow Cohocton Cohoes Cold Brook Cold Spring Cold Spring Harbor Colden College Point Collins Colton Commack Comstock Conesus Conewango Valley Congers Conklin Constable Constableville Constantia Cooperstown Copake Copake Falls Copenhagen Copiague Coram Corfu Corinth Corning Cornwall Cornwall On Hudson Cornwallville Corona Cortland Cortlandt Manor Cossayuna Cottekill Cowlesville Coxsackie Craryville Croghan Cropseyville Cross River Croton On Hudson Crown Point Cuba Cuddebackville Cutchogue Dale Dalton Dansville Darien Center Davenport Davenport Center Dayton De Kalb Junction De Peyster De Ruyter Deansboro Deer Park Delancey Delanson Delevan Delhi Delmar Denver Depew Deposit Derby Dewittville Dexter Diamond Point Dickinson Center Dobbs Ferry Dolgeville Dormansville Dover Plains Downsville Dresden Dryden Duanesburg Dundee Dunkirk Durham Durhamville Eagle Bay Eagle Bridge Earlton Earlville East Amherst East Aurora East Berne East Bethany East Branch East Chatham East Concord East Durham East Elmhurst East Greenbush East Hampton East Islip East Jewett East Marion East Meadow East Meredith East Moriches East Nassau East Northport East Norwich East Otto East Quogue East Rochester East Rockaway East Schodack East Setauket East Springfield East Syracuse East Worcester Eastchester Eastport Eaton Eden Edmeston Edwards Elba Elbridge Eldred Elizabethtown Elizaville Elka Park Ellenburg Center Ellenburg Depot Ellenville Ellicottville Ellisburg Elma Elmhurst Elmira Elmont Elmsford Endicott Erieville Erin Esperance Essex Evans Mills Fabius Fairport Falconer Fallsburg Far Rockaway Farmersville Station Farmingdale Farmington Farmingville Fayetteville Felts Mills Ferndale Feura Bush Fillmore Findley Lake Fine Fishkill Fleischmanns Floral Park Florida Flushing Fly Creek Fonda Forest Hills Forestburgh Forestport Forestville Fort Ann Fort Covington Fort Drum Fort Edward Fort Johnson Fort Plain Frankfort Franklin Franklin Square Franklinville Fredonia Freedom Freehold Freeport Freeville Fremont Center Fresh Meadows Frewsburg Friendship Fulton Fultonham Fultonville Gainesville Galway Gansevoort Garden City Gardiner Garnerville Garrattsville Garrison Gasport Geneseo Geneva Genoa Georgetown Germantown Gerry Getzville Ghent Gilbertsville Gilboa Glen Aubrey Glen Cove Glen Head Glen Oaks Glen Spey Glen Wild Glenfield Glenford Glenmont Glens Falls Glenwood Gloversville Goldens Bridge Goshen Gouverneur Gowanda Grahamsville Grand Gorge Grand Island Granite Springs Granville Great Neck Great Valley Greene Greenfield Center Greenfield Park Greenlawn Greenport Greenvale Greenville Greenwich Greenwood Greenwood Lake Greig Groton Groveland Guilderland Guilderland Center Guilford Hadley Hagaman Hague Hamburg Hamden Hamilton Hamlin Hammond Hammondsport Hampton Hampton Bays Hancock Hankins Hannacroix Hannibal Harpersfield Harpursville Harriman Harris Harrison Harrisville Hartford Hartsdale Hartwick Hastings Hastings On Hudson Hauppauge Haverstraw Hawthorne Hector Hemlock Hempstead Henderson Henrietta Hensonville Herkimer Hermon Heuvelton Hewlett Hicksville High Falls Highland Highland Falls Highland Lake Highland Mills Hillburn Hillsdale Hilton Himrod Hinsdale Hobart Hogansburg Holbrook Holland Holland Patent Holley Hollis Holmes Holtsville Homer Honeoye Honeoye Falls Hoosick Falls Hopewell Junction Hornell Horseheads Hortonville Houghton Howard Beach Howes Cave Hubbardsville Hudson Hudson Falls Huguenot Hunt Hunter Huntington Huntington Station Hurley Hurleyville Hyde Park Ilion Indian Lake Inlet Interlaken Inwood Ionia Irving Irvington Island Park Islandia Islip Islip Terrace Ithaca Jackson Heights Jamaica Jamestown Jamesville Jasper Java Center Java Village Jay Jefferson Jefferson Valley Jeffersonville Jericho Jewett Johnsburg Johnson City Johnsonville Johnstown Jordan Jordanville Katonah Kattskill Bay Keene Keene Valley Keeseville Kendall Kennedy Kenoza Lake Kent Kerhonkson Keuka Park Kew Gardens Kiamesha Lake Kill Buck Kinderhook King Ferry Kings Park Kingston Kirkville Kirkwood Knowlesville La Fargeville La Fayette Lacona Lagrangeville Lake Clear Lake George Lake Grove Lake Hill Lake Huntington Lake Katrine Lake Luzerne Lake Peekskill Lake Placid Lake Pleasant Lake View Lakeville Lakewood Lancaster Lanesville Lansing Larchmont Latham Laurel Laurens Lawrence Lawrenceville Lawtons Le Roy Lee Center Leeds Leicester Levittown Lewis Lewiston Liberty Lima Limestone Lindenhurst Lindley Linwood Lisbon Lisle Little Falls Little Genesee Little Neck Little Valley Liverpool Livingston Manor Livonia Loch Sheldrake Locke Lockport Lockwood Locust Valley Lodi Long Beach Long Eddy Long Island City Long Lake Lorraine Lowman Lowville Lynbrook Lyndonville Lyon Mountain Lyons Lyons Falls Macedon Machias Madison Madrid Mahopac Maine Malden Bridge Mallory Malone Malverne Mamaroneck Manchester Manhasset Manlius Mannsville Manorville Maplecrest Marathon Marcellus Marcy Margaretville Marietta Marilla Marion Marlboro Martville Maryland Masonville Maspeth Massapequa Massapequa Park Massena Mastic Mastic Beach Mattituck Maybrook Mayfield Mayville Mc Donough Mc Graw Mechanicville Medford Medina Medusa Melrose Melville Memphis Mendon Meridale Merrick Mexico Middle Granville Middle Grove Middle Island Middle Village Middleburgh Middleport Middlesex Middletown Middleville Milford Mill Neck Millbrook Miller Place Millerton Millport Millwood Milton Mineola Minerva Mineville Minoa Modena Mohawk Mohegan Lake Moira Mongaup Valley Monroe Monsey Montauk Montgomery Monticello Montour Falls Montrose Mooers Mooers Forks Moravia Moriah Moriah Center Moriches Morris Morrisonville Morristown Morrisville Mount Kisco Mount Marion Mount Morris Mount Sinai Mount Tremper Mount Upton Mount Vernon Mount Vision Mountain Dale Munnsville Nanuet Napanoch Naples Narrowsburg Nassau Natural Bridge Nedrow Nesconset Neversink New Berlin New City New Hampton New Hartford New Hyde Park New Lebanon New Lisbon New Paltz New Rochelle New Russia New Windsor New Woodstock New York New York Mills Newark Newark Valley Newburgh Newcomb Newfane Newfield Newport Niagara Falls Nichols Nicholville Nineveh Niverville Norfolk North Babylon North Bangor North Blenheim North Branch North Brookfield North Chili North Collins North Creek North Granville North Hudson North Java North Lawrence North Pitcher North Rose North Salem North Tonawanda Northport Northville Norway Norwich Norwood Nunda Nyack Oak Hill Oakdale Oakfield Oakland Gardens Oceanside Odessa Ogdensburg Old Bethpage Old Chatham Old Forge Old Westbury Olean Olivebridge Olmstedville Oneida Oneonta Ontario Orangeburg Orchard Park Orient Oriskany Oriskany Falls Ossining Oswegatchie Oswego Otego Otisville Ouaquaga Ovid Owego Owls Head Oxford Oyster Bay Ozone Park Painted Post Palatine Bridge Palenville Palisades Palmyra Panama Paradox Parish Parishville Parksville Patchogue Patterson Pattersonville Paul Smiths Pavilion Pawling Pearl River Peconic Peekskill Pelham Penfield Penn Yan Pennellville Perry Perrysburg Peru Petersburg Phelps Philadelphia Philmont Phoenicia Phoenix Piermont Piffard Pine Bush Pine City Pine Hill Pine Island Pine Plains Pine Valley Piseco Pitcher Pittsford Plainview Plattsburgh Pleasant Valley Pleasantville Plessis Plymouth Poestenkill Poland Pomona Pond Eddy Port Byron Port Chester Port Crane Port Ewen Port Henry Port Jefferson Port Jefferson Station Port Jervis Port Leyden Port Washington Portageville Porter Corners Portland Portlandville Portville Potsdam Pottersville Poughkeepsie Poughquag Pound Ridge Prattsburgh Prattsville Preble Preston Hollow Pulaski Pulteney Purchase Purdys Purling Putnam Station Putnam Valley Queens Village Queensbury Randolph Ransomville Raquette Lake Ravena Red Creek Red Hook Redfield Redford Redwood Rego Park Remsen Rensselaer Rensselaer Falls Rensselaerville Rexford Rexville Rhinebeck Richfield Springs Richford Richland Richmond Hill Richmondville Richville Ridge Ridgewood Ripley Riverhead Rochester Rock City Falls Rock Hill Rock Stream Rock Tavern Rockaway Park Rockville Centre Rocky Point Rodman Rome Romulus Ronkonkoma Roosevelt Roscoe Roseboom Rosedale Rosendale Roslyn Roslyn Heights Rotterdam Junction Round Lake Round Top Rouses Point Roxbury Rush Rushford Rushville Russell Rye Sackets Harbor Sag Harbor Saint Albans Saint James Saint Johnsville Saint Regis Falls Salamanca Salem Salisbury Center Salisbury Mills Salt Point Sanborn Sand Lake Sandy Creek Saranac Saranac Lake Saratoga Springs Sardinia Saugerties Sauquoit Savannah Savona Sayville Scarsdale Schaghticoke Schenectady Schenevus Schodack Landing Schoharie Schroon Lake Schuyler Falls Schuylerville Scio Scipio Center Scottsburg Scottsville Sea Cliff Seaford Selden Selkirk Seneca Falls Shandaken Sharon Springs Sherburne Sherman Sherrill Shirley Shokan Shoreham Shortsville Shrub Oak Shushan Sidney Sidney Center Silver Bay Silver Creek Silver Springs Sinclairville Skaneateles Slate Hill Slaterville Springs Slingerlands Sloansville Sloatsburg Smithtown Smithville Flats Smyrna Sodus Sodus Point Solsville Somers Sound Beach South Cairo South Colton South Dayton South Fallsburg South Glens Falls South Kortright South New Berlin South Otselic South Ozone Park South Plymouth South Richmond Hill South Salem South Wales Southampton Southfields Southold Sparkill Sparrow Bush Speculator Spencer Spencerport Spencertown Sprakers Spring Valley Springfield Center Springfield Gardens Springville Springwater Staatsburg Stafford Stamford Stanfordville Stanley Star Lake Staten Island Stephentown Sterling Stillwater Stittville Stockton Stone Ridge Stony Brook Stony Creek Stony Point Stormville Stratford Strykersville Stuyvesant Suffern Summit Sunnyside Surprise Swain Swan Lake Syosset Syracuse Taberg Tannersville Tappan Tarrytown Theresa Thiells Thompson Ridge Thornwood Three Mile Bay Ticonderoga Tillson Tivoli Tomkins Cove Tonawanda Treadwell Troupsburg Troy Trumansburg Truxton Tuckahoe Tully Tupper Lake Turin Tuxedo Park Ulster Park Unadilla Union Springs Uniondale Upper Jay Utica Valatie Valhalla Valley Cottage Valley Falls Valley Stream Van Etten Van Hornesville Varysburg Verbank Vermontville Vernon Vernon Center Verona Vestal Victor Voorheesville Waccabuc Waddington Wading River Walden Wallkill Walton Walworth Wantagh Wappingers Falls Warners Warnerville Warrensburg Warsaw Warwick Washingtonville Wassaic Water Mill Waterford Waterloo Waterport Watertown Waterville Watervliet Watkins Glen Waverly Wayland Webster Weedsport Wellesley Island Wells Wells Bridge Wellsburg Wellsville West Babylon West Bloomfield West Burlington West Chazy West Copake West Coxsackie West Edmeston West Falls West Fulton West Harrison West Haverstraw West Hempstead West Henrietta West Hurley West Islip West Kill West Leyden West Monroe West Nyack West Oneonta West Point West Sand Lake West Sayville West Shokan West Stockholm West Valley West Winfield Westbury Westdale Westerlo Westernville Westfield Westford Westhampton Westhampton Beach Westmoreland Westport Westtown Wevertown White Lake White Plains White Sulphur Springs Whitehall Whitesboro Whitestone Whitesville Whitney Point Willet Williamson Williamstown Williston Park Willow Willsboro Willseyville Wilmington Wilson Windham Windsor Wingdale Winthrop Witherbee Wolcott Woodbourne Woodbury Woodgate Woodhaven Woodhull Woodmere Woodridge Woodside Woodstock Worcester Wurtsboro Wyandanch Wynantskill Wyoming Yaphank Yonkers Yorktown Heights Yorkville Youngstown Youngsville Yulan

Frequently Asked Questions About Radon in New York

What radon level is considered "high"?
The EPA action level is 4.0 pCi/L — many homeowners also choose to fix levels between 2.0 and 4.0 pCi/L. Any home with levels at or above 4.0 pCi/L should be mitigated.
How much does radon mitigation cost in New York?
Radon mitigation typically costs between $800 and $2,500, depending on foundation type and radon severity. A standard sub-slab depressurization system usually falls in the $1,000–$1,500 range.
Does mitigation actually work?
Yes — properly installed systems typically reduce radon levels by up to 99%. A post-mitigation test confirms the system is working correctly, and many homeowners re-test periodically.
Should I test again after mitigation?
Yes. A post-mitigation test is the proof your system is working. The EPA recommends testing within 30 days of installation and retesting every two years.
What EPA Radon Zone is my New York county in?
New York counties are classified into three EPA Radon Zones. Zone 1 (highest risk, >4 pCi/L) indicates the most concern. Zone 2 (moderate, 2–4 pCi/L) and Zone 3 (lowest, <2 pCi/L) round out the classification. Use the county directory above to find your specific county's zone and data.

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