EPA radon zones
New York radon map: every county's zone
34 of New York's 62 counties are EPA radon zone 1 (predicted average above 4 pCi/L), 13 are zone 2 and 15 are zone 3. High readings occur in every zone, so EPA recommends testing every home.
Albany CountyZone 1
Allegany CountyZone 1
Bronx CountyZone 3
Broome CountyZone 1
Cattaraugus CountyZone 1
Cayuga CountyZone 1
Chautauqua CountyZone 1
Chemung CountyZone 1
Chenango CountyZone 1
Clinton CountyZone 2
Columbia CountyZone 1
Cortland CountyZone 1
Delaware CountyZone 1
Dutchess CountyZone 1
Erie CountyZone 1
Essex CountyZone 3
Franklin CountyZone 3
Fulton CountyZone 3
Genesee CountyZone 1
Greene CountyZone 1
Hamilton CountyZone 3
Herkimer CountyZone 3
Jefferson CountyZone 2
Kings CountyZone 3
Lewis CountyZone 2
Livingston CountyZone 1
Madison CountyZone 1
Monroe CountyZone 2
Montgomery CountyZone 2
Nassau CountyZone 3
New York CountyZone 3
Niagara CountyZone 2
Oneida CountyZone 2
Onondaga CountyZone 1
Ontario CountyZone 1
Orange CountyZone 1
Orleans CountyZone 2
Oswego CountyZone 2
Otsego CountyZone 1
Putnam CountyZone 1
Queens CountyZone 3
Rensselaer CountyZone 1
Richmond CountyZone 3
Rockland CountyZone 3
Saratoga CountyZone 2
Schenectady CountyZone 2
Schoharie CountyZone 1
Schuyler CountyZone 1
Seneca CountyZone 1
St. Lawrence CountyZone 2
Steuben CountyZone 1
Suffolk CountyZone 3
Sullivan CountyZone 1
Tioga CountyZone 1
Tompkins CountyZone 1
Ulster CountyZone 1
Warren CountyZone 3
Washington CountyZone 1
Wayne CountyZone 2
Westchester CountyZone 3
Wyoming CountyZone 1
Yates CountyZone 1
How much does radon mitigation cost?
Most single-family systems cost $800 to $2,500 installed, depending on foundation type and how many suction points are needed. A follow-up test confirms the system works.
What do the zones mean?
EPA radon zones describe counties, not houses. Zone 1 counties have a predicted average indoor level above 4 picocuries per liter (pCi/L), Zone 2 between 2 and 4, Zone 3 below 2. Homes with high levels are found in every zone, which is why EPA recommends that every home be tested, and fixed at 4 pCi/L or above.
New York cities: water and radon
Source: EPA Map of Radon Zones.