Home / Radon map RADON MAP
Every New Jersey town,rated for radon. NJDEP classifies all 564 municipalities as Tier 1 (high), Tier 2 (moderate) or Tier 3 (low) from the share of tested homes at or above the EPA action level of 4 pCi/L. Find your town, then test the house: a town tier is never a reading at your address.
Search above or choose a town on the map.
New Jersey, town by town Choose a municipality
All New Jersey
A REFERENCE YOU CAN BROWSE
Radon tiers by New Jersey town Browse the same municipal data used by the map. Percentages describe reported tests at or above 4 pCi/L, not all homes. A town tier does not tell you the radon level inside a particular house.
Atlantic County 23 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Absecon Tier 3 · Low 3% Atlantic City Tier 3 · Low 0% Brigantine Tier 3 · Low 2% Buena Borough Tier 2 · Moderate 7% Buena Vista Township Tier 2 · Moderate 8% Corbin City Tier 3 · Low 0% Egg Harbor City Tier 2 · Moderate 5% Egg Harbor Township Tier 2 · Moderate 15% Estell Manor Tier 3 · Low 0% Folsom Borough Tier 3 · Low 0% Galloway Township Tier 2 · Moderate 9% Hamilton Township Tier 3 · Low 4% Hammonton Tier 3 · Low 2% Linwood Tier 3 · Low 0% Longport Borough Tier 3 · Low 0% Margate City Tier 3 · Low 0% Mullica Township Tier 2 · Moderate 12% Northfield Tier 2 · Moderate 8% Pleasantville Tier 3 · Low 4% Port Republic Tier 3 · Low 0% Somers Point Tier 2 · Moderate 10% Ventnor City Tier 3 · Low 0% Weymouth Township Tier 3 · Low 0%
Bergen County 70 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Allendale Borough Tier 2 · Moderate 10% Alpine Borough Tier 2 · Moderate 16% Bergenfield Borough Tier 3 · Low 2% Bogota Borough Tier 3 · Low 3% Carlstadt Borough Tier 2 · Moderate 5% Cliffside Park Borough Tier 2 · Moderate 5% Closter Borough Tier 2 · Moderate 7% Cresskill Borough Tier 2 · Moderate 14% Demarest Borough Tier 2 · Moderate 9% Dumont Borough Tier 3 · Low 4% East Rutherford Borough Tier 3 · Low 2% Edgewater Borough Tier 2 · Moderate 12% Elmwood Park Borough Tier 3 · Low 1% Emerson Borough Tier 3 · Low 2% Englewood Tier 2 · Moderate 7% Englewood Cliffs Borough Tier 2 · Moderate 7% Fair Lawn Borough Tier 3 · Low 1% Fairview Borough Tier 3 · Low 3% Fort Lee Borough Tier 2 · Moderate 5% Franklin Lakes Borough Tier 2 · Moderate 24% Garfield Tier 3 · Low 1% Glen Rock Borough Tier 3 · Low 4% Hackensack Tier 2 · Moderate 7% Harrington Park Borough Tier 2 · Moderate 5% Hasbrouck Heights Borough Tier 2 · Moderate 15% Haworth Borough Tier 2 · Moderate 8% Hillsdale Borough Tier 2 · Moderate 7% Ho-Ho-Kus Borough Tier 2 · Moderate 10% Leonia Borough Tier 2 · Moderate 13% Little Ferry Borough Tier 3 · Low 0% Lodi Borough Tier 3 · Low 3% Lyndhurst Township Tier 3 · Low 3% Mahwah Township Tier 2 · Moderate 15% Maywood Borough Tier 2 · Moderate 6% Midland Park Borough Tier 2 · Moderate 7% Montvale Borough Tier 2 · Moderate 13% Moonachie Borough Tier 3 · Low 1% New Milford Borough Tier 3 · Low 1% North Arlington Borough Tier 2 · Moderate 5% Northvale Borough Tier 3 · Low 2% Norwood Borough Tier 3 · Low 4% Oakland Borough Tier 2 · Moderate 18% Old Tappan Borough Tier 2 · Moderate 11% Oradell Borough Tier 3 · Low 4% Palisades Park Borough Tier 2 · Moderate 5% Paramus Borough Tier 3 · Low 3% Park Ridge Borough Tier 2 · Moderate 12% Ramsey Borough Tier 2 · Moderate 11% Ridgefield Borough Tier 2 · Moderate 7% Ridgefield Park Village Tier 3 · Low 2% Ridgewood Village Tier 2 · Moderate 5% River Edge Borough Tier 2 · Moderate 5% River Vale Township Tier 2 · Moderate 8% Rochelle Park Township Tier 3 · Low 1% Rockleigh Borough Tier 2 · Moderate 11% Rutherford Borough Tier 2 · Moderate 5% Saddle Brook Township Tier 3 · Low 2% Saddle River Borough Tier 2 · Moderate 12% South Hackensack Township Tier 3 · Low 0% Teaneck Township Tier 3 · Low 4% Tenafly Borough Tier 2 · Moderate 11% Teterboro Borough Tier 2 · Moderate 0% Upper Saddle River Borough Tier 2 · Moderate 16% Waldwick Borough Tier 3 · Low 4% Wallington Borough Tier 3 · Low 1% Washington Township Tier 2 · Moderate 7% Westwood Borough Tier 3 · Low 3% Wood-Ridge Borough Tier 2 · Moderate 7% Woodcliff Lake Borough Tier 2 · Moderate 12% Wyckoff Township Tier 2 · Moderate 9%
Burlington County 40 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Bass River Township Tier 2 · Moderate 21% Beverly Tier 3 · Low 3% Bordentown Tier 2 · Moderate 11% Bordentown Township Tier 2 · Moderate 11% Burlington Tier 2 · Moderate 7% Burlington Township Tier 2 · Moderate 7% Chesterfield Township Tier 1 · High 20% Cinnaminson Township Tier 2 · Moderate 13% Delanco Township Tier 2 · Moderate 7% Delran Township Tier 2 · Moderate 6% Eastampton Township Tier 2 · Moderate 6% Edgewater Park Township Tier 2 · Moderate 5% Evesham Township Tier 2 · Moderate 9% Fieldsboro Borough Tier 2 · Moderate 11% Florence Township Tier 2 · Moderate 7% Hainesport Township Tier 2 · Moderate 12% Lumberton Township Tier 2 · Moderate 15% Mansfield Township Tier 1 · High 16% Maple Shade Township Tier 2 · Moderate 8% Medford Lakes Borough Tier 3 · Low 4% Medford Township Tier 3 · Low 4% Moorestown Township Tier 2 · Moderate 14% Mount Holly Township Tier 2 · Moderate 10% Mount Laurel Township Tier 2 · Moderate 8% New Hanover Township Tier 2 · Moderate 22% North Hanover Township Tier 2 · Moderate 23% Palmyra Borough Tier 2 · Moderate 5% Pemberton Borough Tier 3 · Low 3% Pemberton Township Tier 3 · Low 3% Riverside Township Tier 3 · Low 3% Riverton Borough Tier 2 · Moderate 10% Shamong Township Tier 3 · Low 4% Southampton Township Tier 2 · Moderate 5% Springfield Township Tier 2 · Moderate 10% Tabernacle Township Tier 2 · Moderate 7% Washington Township Tier 1 · High 26% Westampton Township Tier 2 · Moderate 13% Willingboro Township Tier 3 · Low 2% Woodland Township Tier 2 · Moderate 18% Wrightstown Borough Tier 2 · Moderate 24%
Camden County 36 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Audubon Borough Tier 2 · Moderate 5% Audubon Park Borough Tier 2 · Moderate 5% Barrington Borough Tier 2 · Moderate 15% Bellmawr Borough Tier 2 · Moderate 8% Berlin Borough Tier 2 · Moderate 8% Berlin Township Tier 2 · Moderate 8% Brooklawn Borough Tier 3 · Low 0% Camden Tier 2 · Moderate 5% Cherry Hill Township Tier 2 · Moderate 19% Chesilhurst Borough Tier 2 · Moderate 14% Clementon Borough Tier 2 · Moderate 7% Collingswood Borough Tier 3 · Low 4% Gibbsboro Borough Tier 3 · Low 2% Gloucester City Tier 2 · Moderate 19% Gloucester Township Tier 2 · Moderate 19% Haddon Heights Borough Tier 2 · Moderate 15% Haddon Township Tier 2 · Moderate 6% Haddonfield Borough Tier 2 · Moderate 14% Hi-Nella Borough Tier 2 · Moderate 20% Laurel Springs Borough Tier 2 · Moderate 21% Lawnside Borough Tier 1 · High 42% Lindenwold Borough Tier 2 · Moderate 5% Magnolia Borough Tier 1 · High 30% Merchantville Borough Tier 3 · Low 2% Mount Ephraim Borough Tier 2 · Moderate 7% Oaklyn Borough Tier 2 · Moderate 11% Pennsauken Township Tier 3 · Low 3% Pine Hill Borough Tier 2 · Moderate 7% Runnemede Borough Tier 1 · High 31% Somerdale Borough Tier 1 · High 26% Stratford Borough Tier 2 · Moderate 8% Tavistock Borough Tier 2 · Moderate 0% Voorhees Township Tier 2 · Moderate 7% Waterford Township Tier 2 · Moderate 7% Winslow Township Tier 2 · Moderate 9% Woodlynne Borough Tier 3 · Low 4%
Cape May County 16 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Avalon Borough Tier 3 · Low 0% Cape May Tier 3 · Low 1% Cape May Point Borough Tier 3 · Low 0% Dennis Township Tier 3 · Low 13% Lower Township Tier 3 · Low 0% Middle Township Tier 3 · Low 0% North Wildwood Tier 3 · Low 0% Ocean City Tier 3 · Low 2% Sea Isle City Tier 3 · Low 7% Stone Harbor Borough Tier 3 · Low 0% Upper Township Tier 2 · Moderate 8% West Cape May Borough Tier 3 · Low 0% West Wildwood Borough Tier 3 · Low 0% Wildwood Tier 3 · Low 0% Wildwood Crest Borough Tier 3 · Low 0% Woodbine Borough Tier 3 · Low 0%
Cumberland County 14 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Bridgeton Tier 1 · High 24% Commercial Township Tier 3 · Low 0% Deerfield Township Tier 3 · Low 36% Downe Township Tier 3 · Low 0% Fairfield Township Tier 3 · Low 4% Greenwich Township Tier 1 · High 28% Hopewell Township Tier 3 · Low 32% Lawrence Township Tier 1 · High 27% Maurice River Township Tier 3 · Low 7% Millville Tier 2 · Moderate 6% Shiloh Borough Tier 3 · Low 0% Stow Creek Township Tier 2 · Moderate 22% Upper Deerfield Township Tier 1 · High 27% Vineland Tier 2 · Moderate 7%
Essex County 22 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Belleville Township Tier 2 · Moderate 5% Bloomfield Township Tier 2 · Moderate 14% Caldwell Borough Tier 2 · Moderate 9% Cedar Grove Township Tier 2 · Moderate 7% City of Orange Township Tier 3 · Low 4% East Orange Tier 3 · Low 2% Essex Fells Borough Tier 2 · Moderate 10% Fairfield Township Tier 3 · Low 2% Glen Ridge Borough Tier 2 · Moderate 8% Irvington Township Tier 3 · Low 1% Livingston Township Tier 2 · Moderate 8% Maplewood Township Tier 2 · Moderate 5% Millburn Township Tier 2 · Moderate 8% Montclair Township Tier 2 · Moderate 8% Newark Tier 3 · Low 3% North Caldwell Borough Tier 2 · Moderate 13% Nutley Township Tier 2 · Moderate 6% Roseland Borough Tier 2 · Moderate 8% South Orange Village Township Tier 2 · Moderate 8% Verona Township Tier 2 · Moderate 5% West Caldwell Township Tier 2 · Moderate 5% West Orange Township Tier 2 · Moderate 8%
Gloucester County 24 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Clayton Borough Tier 2 · Moderate 24% Deptford Township Tier 1 · High 27% East Greenwich Township Tier 1 · High 25% Elk Township Tier 2 · Moderate 22% Franklin Township Tier 2 · Moderate 22% Glassboro Borough Tier 2 · Moderate 11% Greenwich Township Tier 1 · High 15% Harrison Township Tier 1 · High 31% Logan Township Tier 2 · Moderate 18% Mantua Township Tier 2 · Moderate 20% Monroe Township Tier 2 · Moderate 15% National Park Borough Tier 3 · Low 2% Newfield Borough Tier 2 · Moderate 18% Paulsboro Borough Tier 3 · Low 3% Pitman Borough Tier 2 · Moderate 10% South Harrison Township Tier 1 · High 28% Swedesboro Borough Tier 1 · High 28% Washington Township Tier 2 · Moderate 9% Wenonah Borough Tier 1 · High 37% West Deptford Township Tier 2 · Moderate 11% Westville Borough Tier 2 · Moderate 5% Woodbury Tier 2 · Moderate 8% Woodbury Heights Borough Tier 2 · Moderate 8% Woolwich Township Tier 1 · High 37%
Hudson County 12 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Bayonne Tier 3 · Low 1% East Newark Borough Tier 2 · Moderate 13% Guttenberg Tier 2 · Moderate 9% Harrison Tier 2 · Moderate 13% Hoboken Tier 3 · Low 2% Jersey City Tier 3 · Low 3% Kearny Tier 2 · Moderate 5% North Bergen Township Tier 2 · Moderate 9% Secaucus Tier 3 · Low 3% Union City Tier 2 · Moderate 6% Weehawken Township Tier 2 · Moderate 6% West New York Tier 2 · Moderate 7%
Hunterdon County 26 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Alexandria Township Tier 1 · High 38% Bethlehem Township Tier 1 · High 45% Bloomsbury Borough Tier 1 · High 45% Califon Borough Tier 1 · High 49% Clinton Tier 1 · High 36% Clinton Township Tier 1 · High 36% Delaware Township Tier 1 · High 42% East Amwell Township Tier 1 · High 43% Flemington Borough Tier 1 · High 35% Franklin Township Tier 1 · High 41% Frenchtown Borough Tier 1 · High 30% Glen Gardner Borough Tier 1 · High 39% Hampton Borough Tier 1 · High 43% High Bridge Borough Tier 1 · High 43% Holland Township Tier 1 · High 43% Kingwood Township Tier 1 · High 26% Lambertville Tier 1 · High 26% Lebanon Borough Tier 1 · High 41% Lebanon Township Tier 1 · High 41% Milford Borough Tier 1 · High 42% Raritan Township Tier 1 · High 35% Readington Township Tier 1 · High 40% Stockton Borough Tier 1 · High 40% Tewksbury Township Tier 1 · High 46% Union Township Tier 2 · Moderate 14% West Amwell Township Tier 1 · High 34%
Mercer County 12 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L East Windsor Township Tier 2 · Moderate 7% Ewing Township Tier 1 · High 29% Hamilton Township Tier 2 · Moderate 7% Hightstown Borough Tier 2 · Moderate 7% Hopewell Borough Tier 1 · High 33% Hopewell Township Tier 1 · High 33% Lawrence Township Tier 1 · High 26% Pennington Borough Tier 1 · High 33% Princeton Tier 1 · High 34% Robbinsville Township Tier 2 · Moderate 14% Trenton Tier 2 · Moderate 11% West Windsor Township Tier 2 · Moderate 17%
Middlesex County 25 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Carteret Borough Tier 3 · Low 2% Cranbury Township Tier 2 · Moderate 15% Dunellen Borough Tier 3 · Low 3% East Brunswick Township Tier 2 · Moderate 8% Edison Township Tier 2 · Moderate 13% Helmetta Borough Tier 2 · Moderate 6% Highland Park Borough Tier 1 · High 37% Jamesburg Borough Tier 2 · Moderate 15% Metuchen Borough Tier 2 · Moderate 14% Middlesex Borough Tier 2 · Moderate 11% Milltown Borough Tier 2 · Moderate 7% Monroe Township Tier 2 · Moderate 13% New Brunswick Tier 2 · Moderate 18% North Brunswick Township Tier 1 · High 20% Old Bridge Township Tier 3 · Low 3% Perth Amboy Tier 3 · Low 2% Piscataway Township Tier 1 · High 26% Plainsboro Township Tier 2 · Moderate 17% Sayreville Borough Tier 3 · Low 3% South Amboy Tier 3 · Low 4% South Brunswick Township Tier 2 · Moderate 20% South Plainfield Borough Tier 2 · Moderate 12% South River Borough Tier 3 · Low 4% Spotswood Borough Tier 3 · Low 2% Woodbridge Township Tier 2 · Moderate 6%
Monmouth County 53 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Aberdeen Township Tier 3 · Low 3% Allenhurst Borough Tier 3 · Low 0% Allentown Borough Tier 1 · High 25% Asbury Park Tier 3 · Low 3% Atlantic Highlands Borough Tier 2 · Moderate 20% Avon-by-the-Sea Borough Tier 3 · Low 0% Belmar Borough Tier 3 · Low 1% Bradley Beach Borough Tier 3 · Low 1% Brielle Borough Tier 2 · Moderate 5% Colts Neck Township Tier 1 · High 38% Deal Borough Tier 3 · Low 2% Eatontown Borough Tier 2 · Moderate 5% Englishtown Borough Tier 2 · Moderate 8% Fair Haven Borough Tier 2 · Moderate 14% Farmingdale Borough Tier 3 · Low 3% Freehold Borough Tier 1 · High 35% Freehold Township Tier 1 · High 35% Hazlet Township Tier 3 · Low 1% Highlands Borough Tier 2 · Moderate 10% Holmdel Township Tier 1 · High 25% Howell Township Tier 3 · Low 2% Interlaken Borough Tier 3 · Low 3% Keansburg Borough Tier 3 · Low 0% Keyport Borough Tier 3 · Low 3% Lake Como Borough Tier 3 · Low 1% Little Silver Borough Tier 1 · High 27% Loch Arbour Village Tier 3 · Low 0% Long Branch Tier 3 · Low 4% Manalapan Township Tier 2 · Moderate 12% Manasquan Borough Tier 2 · Moderate 5% Marlboro Township Tier 1 · High 22% Matawan Borough Tier 2 · Moderate 5% Middletown Township Tier 2 · Moderate 13% Millstone Township Tier 1 · High 31% Monmouth Beach Borough Tier 2 · Moderate 5% Neptune City Borough Tier 3 · Low 1% Neptune Township Tier 3 · Low 0% Ocean Township Tier 3 · Low 4% Oceanport Borough Tier 2 · Moderate 5% Red Bank Borough Tier 2 · Moderate 15% Roosevelt Borough Tier 1 · High 39% Rumson Borough Tier 2 · Moderate 19% Sea Bright Borough Tier 3 · Low 0% Sea Girt Borough Tier 3 · Low 2% Shrewsbury Borough Tier 1 · High 36% Shrewsbury Township Tier 1 · High 36% Spring Lake Borough Tier 3 · Low 1% Spring Lake Heights Borough Tier 3 · Low 1% Tinton Falls Borough Tier 2 · Moderate 15% Union Beach Borough Tier 3 · Low 1% Upper Freehold Township Tier 1 · High 25% Wall Township Tier 2 · Moderate 7% West Long Branch Borough Tier 2 · Moderate 5%
Morris County 39 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Boonton Tier 2 · Moderate 23% Boonton Township Tier 2 · Moderate 23% Butler Borough Tier 2 · Moderate 13% Chatham Borough Tier 2 · Moderate 15% Chatham Township Tier 2 · Moderate 15% Chester Borough Tier 1 · High 46% Chester Township Tier 1 · High 46% Denville Township Tier 2 · Moderate 24% Dover Tier 1 · High 33% East Hanover Township Tier 2 · Moderate 8% Florham Park Borough Tier 2 · Moderate 10% Hanover Township Tier 2 · Moderate 14% Harding Township Tier 1 · High 41% Jefferson Township Tier 1 · High 32% Kinnelon Borough Tier 1 · High 27% Lincoln Park Borough Tier 2 · Moderate 7% Long Hill Township Tier 1 · High 27% Madison Borough Tier 2 · Moderate 13% Mendham Borough Tier 1 · High 37% Mendham Township Tier 1 · High 37% Mine Hill Township Tier 1 · High 26% Montville Township Tier 2 · Moderate 21% Morris Plains Borough Tier 1 · High 31% Morris Township Tier 1 · High 24% Morristown Tier 1 · High 24% Mount Arlington Borough Tier 2 · Moderate 18% Mount Olive Township Tier 1 · High 37% Mountain Lakes Borough Tier 2 · Moderate 17% Netcong Borough Tier 2 · Moderate 13% Parsippany-Troy Hills Township Tier 2 · Moderate 12% Pequannock Township Tier 2 · Moderate 15% Randolph Township Tier 1 · High 37% Riverdale Borough Tier 1 · High 27% Rockaway Borough Tier 2 · Moderate 22% Rockaway Township Tier 2 · Moderate 22% Roxbury Township Tier 1 · High 25% Victory Gardens Borough Tier 1 · High 31% Washington Township Tier 1 · High 43% Wharton Borough Tier 1 · High 30%
Ocean County 33 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Barnegat Light Borough Tier 3 · Low 0% Barnegat Township Tier 2 · Moderate 8% Bay Head Borough Tier 3 · Low 0% Beach Haven Borough Tier 3 · Low 0% Beachwood Borough Tier 3 · Low 3% Berkeley Township Tier 3 · Low 4% Brick Township Tier 3 · Low 1% Eagleswood Township Tier 3 · Low 0% Harvey Cedars Borough Tier 3 · Low 0% Island Heights Borough Tier 3 · Low 2% Jackson Township Tier 3 · Low 4% Lacey Township Tier 3 · Low 1% Lakehurst Borough Tier 3 · Low 1% Lakewood Township Tier 3 · Low 1% Lavallette Borough Tier 3 · Low 1% Little Egg Harbor Township Tier 2 · Moderate 6% Long Beach Township Tier 3 · Low 0% Manchester Township Tier 3 · Low 2% Mantoloking Borough Tier 3 · Low 4% Ocean Gate Borough Tier 3 · Low 0% Ocean Township Tier 3 · Low 4% Pine Beach Borough Tier 3 · Low 0% Plumsted Township Tier 2 · Moderate 7% Point Pleasant Beach Borough Tier 3 · Low 1% Point Pleasant Borough Tier 3 · Low 1% Seaside Heights Borough Tier 3 · Low 0% Seaside Park Borough Tier 3 · Low 2% Ship Bottom Borough Tier 3 · Low 0% South Toms River Borough Tier 3 · Low 0% Stafford Township Tier 2 · Moderate 5% Surf City Borough Tier 3 · Low 0% Toms River Township Tier 3 · Low 4% Tuckerton Borough Tier 3 · Low 4%
Passaic County 16 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Bloomingdale Borough Tier 2 · Moderate 15% Clifton Tier 2 · Moderate 6% Haledon Borough Tier 3 · Low 3% Hawthorne Borough Tier 3 · Low 4% Little Falls Township Tier 2 · Moderate 5% North Haledon Borough Tier 2 · Moderate 9% Passaic Tier 2 · Moderate 6% Paterson Tier 3 · Low 2% Pompton Lakes Borough Tier 1 · High 25% Prospect Park Borough Tier 3 · Low 1% Ringwood Borough Tier 2 · Moderate 17% Totowa Borough Tier 2 · Moderate 6% Wanaque Borough Tier 2 · Moderate 15% Wayne Township Tier 2 · Moderate 12% West Milford Township Tier 1 · High 28% Woodland Park Borough Tier 2 · Moderate 12%
Salem County 15 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Alloway Township Tier 2 · Moderate 23% Carneys Point Township Tier 3 · Low 2% Elmer Borough Tier 2 · Moderate 16% Elsinboro Township Tier 2 · Moderate 10% Lower Alloways Creek Township Tier 3 · Low 8% Mannington Township Tier 1 · High 27% Oldmans Township Tier 2 · Moderate 20% Penns Grove Borough Tier 3 · Low 3% Pennsville Township Tier 3 · Low 3% Pilesgrove Township Tier 1 · High 35% Pittsgrove Township Tier 2 · Moderate 23% Quinton Township Tier 3 · Low 23% Salem Tier 2 · Moderate 12% Upper Pittsgrove Township Tier 2 · Moderate 21% Woodstown Borough Tier 1 · High 23%
Somerset County 21 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Bedminster Township Tier 2 · Moderate 15% Bernards Township Tier 1 · High 32% Bernardsville Borough Tier 1 · High 48% Bound Brook Borough Tier 2 · Moderate 8% Branchburg Township Tier 1 · High 40% Bridgewater Township Tier 1 · High 25% Far Hills Borough Tier 1 · High 38% Franklin Township Tier 1 · High 31% Green Brook Township Tier 2 · Moderate 20% Hillsborough Township Tier 1 · High 32% Manville Borough Tier 2 · Moderate 18% Millstone Borough Tier 1 · High 28% Montgomery Township Tier 1 · High 41% North Plainfield Borough Tier 2 · Moderate 13% Peapack-Gladstone Borough Tier 1 · High 53% Raritan Borough Tier 2 · Moderate 22% Rocky Hill Borough Tier 1 · High 45% Somerville Borough Tier 1 · High 18% South Bound Brook Borough Tier 2 · Moderate 12% Warren Township Tier 1 · High 31% Watchung Borough Tier 1 · High 35%
Sussex County 24 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Andover Borough Tier 1 · High 37% Andover Township Tier 1 · High 37% Branchville Borough Tier 1 · High 29% Byram Township Tier 1 · High 28% Frankford Township Tier 1 · High 35% Franklin Borough Tier 1 · High 34% Fredon Township Tier 1 · High 52% Green Township Tier 1 · High 51% Hamburg Borough Tier 1 · High 28% Hampton Township Tier 1 · High 37% Hardyston Township Tier 1 · High 29% Hopatcong Borough Tier 1 · High 30% Lafayette Township Tier 1 · High 46% Montague Township Tier 1 · High 35% Newton Tier 1 · High 42% Ogdensburg Borough Tier 1 · High 33% Sandyston Township Tier 1 · High 30% Sparta Township Tier 1 · High 34% Stanhope Borough Tier 1 · High 28% Stillwater Township Tier 1 · High 34% Sussex Borough Tier 1 · High 34% Vernon Township Tier 1 · High 38% Walpack Township Tier 1 · High 0% Wantage Township Tier 1 · High 45%
Union County 21 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Berkeley Heights Township Tier 2 · Moderate 18% Clark Township Tier 2 · Moderate 8% Cranford Township Tier 3 · Low 4% Elizabeth Tier 3 · Low 4% Fanwood Borough Tier 2 · Moderate 6% Garwood Borough Tier 3 · Low 2% Hillside Township Tier 2 · Moderate 13% Kenilworth Borough Tier 2 · Moderate 14% Linden Tier 2 · Moderate 6% Mountainside Borough Tier 2 · Moderate 12% New Providence Borough Tier 2 · Moderate 11% Plainfield Tier 2 · Moderate 11% Rahway Tier 2 · Moderate 9% Roselle Borough Tier 3 · Low 4% Roselle Park Borough Tier 2 · Moderate 5% Scotch Plains Township Tier 2 · Moderate 20% Springfield Township Tier 2 · Moderate 6% Summit Tier 2 · Moderate 12% Union Township Tier 2 · Moderate 9% Westfield Tier 2 · Moderate 7% Winfield Township Tier 2 · Moderate 0%
Warren County 22 municipalities Municipality Radon tier Reported tests ≥ 4 pCi/L Allamuchy Township Tier 1 · High 26% Alpha Borough Tier 1 · High 54% Belvidere Tier 1 · High 54% Blairstown Township Tier 1 · High 52% Franklin Township Tier 1 · High 44% Frelinghuysen Township Tier 1 · High 60% Greenwich Township Tier 1 · High 41% Hackettstown Tier 1 · High 39% Hardwick Township Tier 1 · High 54% Harmony Township Tier 1 · High 58% Hope Township Tier 1 · High 57% Independence Township Tier 1 · High 34% Knowlton Township Tier 1 · High 45% Liberty Township Tier 1 · High 52% Lopatcong Township Tier 1 · High 37% Mansfield Township Tier 1 · High 41% Oxford Township Tier 1 · High 47% Phillipsburg Tier 1 · High 42% Pohatcong Township Tier 1 · High 37% Washington Borough Tier 1 · High 35% Washington Township Tier 1 · High 35% White Township Tier 1 · High 53%
