Water hardness in New York

Typical New York tap water
31mg/L
1.8gpg
Soft

Population-weighted middle value across 209 New York cities in the dataset

People with hard or very hard water
4%
Hardest
Niskayuna 211
Softest
New Rochelle 6

We have hardness numbers for 149 New York cities; 11 of them are county estimates rather than utility figures. Each city page adds the water system's EPA violation record and a softener size for a typical household.

Every New York city on the hardness scale
SoftModerately hardHardVery hard060120180240300360+New York: 31 mg/LBuffalo: 86 mg/LYonkers: 35 mg/LRochester: 105 mg/LSyracuse: 109 mg/LAlbany: 75 mg/LNew Rochelle: 6 mg/LCheektowaga: 109 mg/LMount Vernon: 24 mg/LSchenectady: 190 mg/LUtica: 100 mg/LWhite Plains: 21 mg/LHempstead: 53 mg/LLevittown: 10 mg/LTroy: 59 mg/LIrondequoit: 112 mg/LNiagara Falls: 167 mg/LBinghamton: 61 mg/LWest Seneca: 109 mg/LFreeport: 33 mg/LHicksville: 18 mg/LElmont: 55 mg/LEast Meadow: 42 mg/LSpring Valley: 106 mg/LNew City: 106 mg/LUniondale: 51 mg/LIthaca: 128 mg/LBaldwin: 42 mg/LPoughkeepsie: 88 mg/LHarrison: 17 mg/LOceanside: 42 mg/LRome: 22 mg/LFranklin Square: 48 mg/LNorth Tonawanda: 167 mg/LSaratoga Springs: 88 mg/LMonsey: 106 mg/LJamestown: 144 mg/LOssining: 103 mg/LLindenhurst: 10 mg/LPlainview: 54 mg/LElmira: 136 mg/LAuburn: 201 mg/LPeekskill: 100 mg/LRockville Centre: 39 mg/LDix Hills: 21 mg/LSmithtown: 46 mg/LKingston: 19 mg/LCopiague: 10 mg/LGarden City: 51 mg/LMassapequa: 10 mg/LMerrick: 42 mg/LMineola: 51 mg/LLynbrook: 32 mg/LNiskayuna: 211 mg/LHauppauge: 85 mg/LWest Hempstead: 48 mg/LEastchester: 14 mg/LNorth Amityville: 10 mg/LLockport: 167 mg/LEast Massapequa: 10 mg/LHuntington: 21 mg/LMamaroneck: 6 mg/LRoosevelt: 33 mg/LLackawanna: 109 mg/LSyosset: 24 mg/LScarsdale: 13 mg/LNorth Massapequa: 10 mg/LWantagh: 10 mg/LNorth Valley Stream: 55 mg/LPort Washington: 59 mg/LBethpage: 10 mg/LOswego: 105 mg/LMassapequa Park: 8 mg/LKings Park: 46 mg/LFloral Park: 55 mg/LWestbury: 55 mg/LSeaford: 13 mg/LEggertsville: 109 mg/LGreenlawn: 31 mg/LSouth Farmingdale: 10 mg/LBeacon: 94 mg/LTonawanda: 109 mg/LDepew: 109 mg/LNew Cassel: 45 mg/LNorth New Hyde Park: 55 mg/LGreece: 112 mg/LNorth Merrick: 42 mg/LBabylon: 33 mg/LTarrytown: 19 mg/LNorth Wantagh: 10 mg/LSleepy Hollow: 22 mg/LFulton: 105 mg/LNorth Lindenhurst: 10 mg/LGreat Neck: 55 mg/LDeWitt: 106 mg/LMount Kisco: 55 mg/LNew Hyde Park: 53 mg/LFort Salonga: 70 mg/LNorth Gates: 112 mg/LOneida: 21 mg/LFairmount: 105 mg/LLancaster: 109 mg/LHamburg: 109 mg/LAmityville: 10 mg/LGreenville: 17 mg/LMahopac: 71 mg/LPlainedge: 10 mg/LNewark: 135 mg/LFarmingdale: 10 mg/LMalverne: 51 mg/LCroton-on-Hudson: 107 mg/LGarden City Park: 51 mg/LGreat Neck Plaza: 55 mg/LManhasset: 66 mg/LWestmere: 84 mg/LPelham: 22 mg/LBaldwinsville: 105 mg/LWilliston Park: 55 mg/LBriarcliff Manor: 30 mg/LPleasantville: 32 mg/LNorthport: 70 mg/LEast Hills: 56 mg/LTuckahoe: 14 mg/LRadisson: 105 mg/LOyster Bay: 45 mg/LRoslyn Heights: 55 mg/LNorth Syracuse: 105 mg/LLarchmont: 6 mg/LIrvington: 6 mg/LSolvay: 108 mg/LHorseheads: 136 mg/LOld Bethpage: 37 mg/LWappingers Falls: 113 mg/LMattydale: 105 mg/LEast Aurora: 109 mg/LHilton: 112 mg/LEast Farmingdale: 10 mg/LHarris Hill: 109 mg/LBig Flats: 136 mg/LLakeview: 39 mg/LKings Point: 55 mg/LPelham Manor: 24 mg/LCountry Knolls: 123 mg/LNorth Hills: 66 mg/LWilliamsville: 109 mg/LWestvale: 105 mg/LElmsford: 17 mg/LCarle Place: 51 mg/LOld Westbury: 54 mg/LNew YorkBuffaloYonkersSyracuseSoftMod.HardVery hard060120180240300360+New York: 31 mg/LBuffalo: 86 mg/LYonkers: 35 mg/LRochester: 105 mg/LSyracuse: 109 mg/LAlbany: 75 mg/LNew Rochelle: 6 mg/LCheektowaga: 109 mg/LMount Vernon: 24 mg/LSchenectady: 190 mg/LUtica: 100 mg/LWhite Plains: 21 mg/LHempstead: 53 mg/LLevittown: 10 mg/LTroy: 59 mg/LIrondequoit: 112 mg/LNiagara Falls: 167 mg/LBinghamton: 61 mg/LWest Seneca: 109 mg/LFreeport: 33 mg/LHicksville: 18 mg/LElmont: 55 mg/LEast Meadow: 42 mg/LSpring Valley: 106 mg/LNew City: 106 mg/LUniondale: 51 mg/LIthaca: 128 mg/LBaldwin: 42 mg/LPoughkeepsie: 88 mg/LHarrison: 17 mg/LOceanside: 42 mg/LRome: 22 mg/LFranklin Square: 48 mg/LNorth Tonawanda: 167 mg/LSaratoga Springs: 88 mg/LMonsey: 106 mg/LJamestown: 144 mg/LOssining: 103 mg/LLindenhurst: 10 mg/LPlainview: 54 mg/LElmira: 136 mg/LAuburn: 201 mg/LPeekskill: 100 mg/LRockville Centre: 39 mg/LDix Hills: 21 mg/LSmithtown: 46 mg/LKingston: 19 mg/LCopiague: 10 mg/LGarden City: 51 mg/LMassapequa: 10 mg/LMerrick: 42 mg/LMineola: 51 mg/LLynbrook: 32 mg/LNiskayuna: 211 mg/LHauppauge: 85 mg/LWest Hempstead: 48 mg/LEastchester: 14 mg/LNorth Amityville: 10 mg/LLockport: 167 mg/LEast Massapequa: 10 mg/LHuntington: 21 mg/LMamaroneck: 6 mg/LRoosevelt: 33 mg/LLackawanna: 109 mg/LSyosset: 24 mg/LScarsdale: 13 mg/LNorth Massapequa: 10 mg/LWantagh: 10 mg/LNorth Valley Stream: 55 mg/LPort Washington: 59 mg/LBethpage: 10 mg/LOswego: 105 mg/LMassapequa Park: 8 mg/LKings Park: 46 mg/LFloral Park: 55 mg/LWestbury: 55 mg/LSeaford: 13 mg/LEggertsville: 109 mg/LGreenlawn: 31 mg/LSouth Farmingdale: 10 mg/LBeacon: 94 mg/LTonawanda: 109 mg/LDepew: 109 mg/LNew Cassel: 45 mg/LNorth New Hyde Park: 55 mg/LGreece: 112 mg/LNorth Merrick: 42 mg/LBabylon: 33 mg/LTarrytown: 19 mg/LNorth Wantagh: 10 mg/LSleepy Hollow: 22 mg/LFulton: 105 mg/LNorth Lindenhurst: 10 mg/LGreat Neck: 55 mg/LDeWitt: 106 mg/LMount Kisco: 55 mg/LNew Hyde Park: 53 mg/LFort Salonga: 70 mg/LNorth Gates: 112 mg/LOneida: 21 mg/LFairmount: 105 mg/LLancaster: 109 mg/LHamburg: 109 mg/LAmityville: 10 mg/LGreenville: 17 mg/LMahopac: 71 mg/LPlainedge: 10 mg/LNewark: 135 mg/LFarmingdale: 10 mg/LMalverne: 51 mg/LCroton-on-Hudson: 107 mg/LGarden City Park: 51 mg/LGreat Neck Plaza: 55 mg/LManhasset: 66 mg/LWestmere: 84 mg/LPelham: 22 mg/LBaldwinsville: 105 mg/LWilliston Park: 55 mg/LBriarcliff Manor: 30 mg/LPleasantville: 32 mg/LNorthport: 70 mg/LEast Hills: 56 mg/LTuckahoe: 14 mg/LRadisson: 105 mg/LOyster Bay: 45 mg/LRoslyn Heights: 55 mg/LNorth Syracuse: 105 mg/LLarchmont: 6 mg/LIrvington: 6 mg/LSolvay: 108 mg/LHorseheads: 136 mg/LOld Bethpage: 37 mg/LWappingers Falls: 113 mg/LMattydale: 105 mg/LEast Aurora: 109 mg/LHilton: 112 mg/LEast Farmingdale: 10 mg/LHarris Hill: 109 mg/LBig Flats: 136 mg/LLakeview: 39 mg/LKings Point: 55 mg/LPelham Manor: 24 mg/LCountry Knolls: 123 mg/LNorth Hills: 66 mg/LWilliamsville: 109 mg/LWestvale: 105 mg/LElmsford: 17 mg/LCarle Place: 51 mg/LOld Westbury: 54 mg/LNew YorkYonkersRochester

Dot size follows population. Tap a dot for the city page.

88Soft
48Moderately hard
10Hard
3Very hard

Hardest water in New York

  1. Niskayuna211
  2. Auburn201
  3. Schenectady190
  4. Niagara Falls167
  5. North Tonawanda167
  6. Lockport167
  7. Jamestown144
  8. Elmira136

Softest water in New York

  1. Irvington6
  2. Larchmont6
  3. Mamaroneck6
  4. New Rochelle6
  5. Massapequa Park8
  6. East Farmingdale10
  7. Farmingdale10
  8. Plainedge10

All cities in New York

Citymg/LgpgClassDataEPA health violations
New York311.8SoftUtility report1
Buffalo865.1Moderately hardUtility report0
Yonkers352.0SoftUtility report0
Rochester1056.1Moderately hardUtility report1
Syracuse1096.4Moderately hardUtility report0
Albany754.4Moderately hardUtility report0
New Rochelle60.4SoftUtility report3
Cheektowaga1096.4Moderately hardUtility report0
Mount Vernon241.4SoftUtility report0
Schenectady19011.1Very hardUtility report0
Utica1005.9Moderately hardCounty estimate–
White Plains211.2SoftUtility report0
Hempstead533.1SoftUtility report0
Levittown100.6SoftUtility report0
Troy593.4SoftUtility report3
Irondequoit1126.5Moderately hardUtility report1
Niagara Falls1679.8HardCounty estimate0
Binghamton613.6Moderately hardCounty estimate0
West Seneca1096.4Moderately hardUtility report0
Freeport331.9SoftUtility report0
Hicksville181.0SoftCalculated from utility data0
Elmont553.2SoftUtility report0
East Meadow422.5SoftUtility report0
Spring Valley1066.2Moderately hardCounty estimate–
New City1066.2Moderately hardCounty estimate–
Uniondale513.0SoftUtility report0
Ithaca1287.5HardUtility report2
Baldwin422.5SoftUtility report0
Poughkeepsie885.1Moderately hardUtility report0
Harrison171.0SoftUtility report3
Oceanside422.5SoftUtility report0
Rome221.3SoftUtility report1
Franklin Square482.8SoftUtility report0
North Tonawanda1679.8HardCounty estimate0
Saratoga Springs885.2Moderately hardCounty estimate0
Monsey1066.2Moderately hardCounty estimate–
Jamestown1448.4HardCounty estimate–
Ossining1036.0Moderately hardUtility report0
Lindenhurst100.6SoftUtility report0
Plainview543.2SoftUtility report2
Elmira1368.0HardUtility report0
Auburn20111.8Very hardCounty estimate0
Peekskill1005.8Moderately hardUtility report0
Rockville Centre392.3SoftUtility report0
Dix Hills211.2SoftUtility report0
Smithtown462.7SoftUtility report0
Kingston191.1SoftUtility report0
Copiague100.6SoftUtility report0
Garden City513.0SoftUtility report0
Massapequa100.6SoftUtility report0
Merrick422.5SoftUtility report0
Mineola513.0SoftUtility report0
Lynbrook321.9SoftUtility report5
Niskayuna21112.3Very hardUtility report0
Hauppauge855.0Moderately hardUtility report0
West Hempstead482.8SoftUtility report0
Eastchester140.8SoftUtility report0
North Amityville100.6SoftUtility report0
Lockport1679.8HardCounty estimate0
East Massapequa100.6SoftUtility report0
Huntington211.2SoftUtility report0
Mamaroneck60.4SoftUtility report3
Roosevelt331.9SoftUtility report0
Lackawanna1096.4Moderately hardUtility report0
Syosset241.4SoftUtility report1
Scarsdale130.8SoftUtility report0
North Massapequa100.6SoftUtility report0
Wantagh100.6SoftUtility report0
North Valley Stream553.2SoftUtility report0
Port Washington593.4SoftUtility report0
Bethpage100.6SoftUtility report0
Oswego1056.1Moderately hardUtility report0
Massapequa Park80.5SoftUtility report0
Kings Park462.7SoftUtility report0
Floral Park553.2SoftUtility report0
Westbury553.2SoftUtility report0
Seaford130.8SoftUtility report3
Eggertsville1096.4Moderately hardUtility report0
Greenlawn311.8SoftUtility report0
South Farmingdale100.6SoftUtility report0
Beacon945.5Moderately hardUtility report1
Tonawanda1096.4Moderately hardUtility report0
Depew1096.4Moderately hardUtility report0
New Cassel452.6SoftCalculated from utility data–
North New Hyde Park553.2SoftUtility report0
Greece1126.5Moderately hardUtility report1
North Merrick422.5SoftUtility report0
Babylon331.9SoftUtility report0
Tarrytown191.1SoftUtility report3
North Wantagh100.6SoftUtility report0
Sleepy Hollow221.3SoftUtility report0
Fulton1056.1Moderately hardUtility report0
North Lindenhurst100.6SoftUtility report0
Great Neck553.2SoftUtility report0
DeWitt1066.2Moderately hardUtility report0
Mount Kisco553.2SoftUtility report2
New Hyde Park533.1SoftUtility report0
Fort Salonga704.1Moderately hardUtility report0
North Gates1126.5Moderately hardUtility report1
Oneida211.2SoftUtility report0
Fairmount1056.1Moderately hardUtility report0
Lancaster1096.4Moderately hardUtility report0
Hamburg1096.4Moderately hardUtility report0
Amityville100.6SoftUtility report0
Greenville171.0SoftUtility report0
Mahopac714.1Moderately hardUtility report0
Plainedge100.6SoftUtility report0
Newark1357.9HardUtility report0
Farmingdale100.6SoftUtility report0
Malverne513.0SoftUtility report0
Croton-on-Hudson1076.3Moderately hardUtility report0
Garden City Park513.0SoftUtility report0
Great Neck Plaza553.2SoftUtility report0
Manhasset663.9Moderately hardUtility report0
Westmere844.9Moderately hardUtility report3
Pelham221.3SoftUtility report6
Baldwinsville1056.1Moderately hardUtility report0
Williston Park553.2SoftUtility report0
Briarcliff Manor301.8SoftUtility report0
Pleasantville321.9SoftUtility report0
Northport704.1Moderately hardUtility report0
East Hills563.2SoftUtility report0
Tuckahoe140.8SoftUtility report0
Radisson1056.1Moderately hardUtility report0
Oyster Bay452.6SoftCalculated from utility data0
Roslyn Heights553.2SoftUtility report0
North Syracuse1056.1Moderately hardUtility report0
Larchmont60.4SoftUtility report0
Irvington60.4SoftUtility report0
Solvay1086.3Moderately hardUtility report0
Horseheads1368.0HardUtility report2
Old Bethpage372.1SoftUtility report0
Wappingers Falls1136.6Moderately hardUtility report0
Mattydale1056.1Moderately hardUtility report0
East Aurora1096.4Moderately hardUtility report0
Hilton1126.5Moderately hardUtility report1
East Farmingdale100.6SoftUtility report0
Harris Hill1096.4Moderately hardUtility report0
Big Flats1368.0HardUtility report0
Lakeview392.3SoftUtility report0
Kings Point553.2SoftUtility report0
Pelham Manor241.4SoftUtility report0
Country Knolls1237.2HardUtility report1
North Hills663.9Moderately hardUtility report0
Williamsville1096.4Moderately hardUtility report0
Westvale1056.1Moderately hardUtility report0
Elmsford171.0SoftUtility report0
Carle Place513.0SoftUtility report0
Old Westbury543.1SoftUtility report0

Questions

Is New York water hard?

The typical New York resident gets about 31 mg/L (1.8 gpg), which is soft. About 4% of people in the cities we track have hard or very hard water.

Which city in New York has the hardest water?

Among 149 cities with pages here, Niskayuna is highest at 211 mg/L.

Which city in New York has the softest water?

New Rochelle, at 6 mg/L.

Other states

Hardness data: TapWaterData US Water Hardness, CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.