New York Water Science Center
The U.S. Geological Survey (USGS) compiles National water-use estimates every five years. The most recent compilation was for year 2000. The data compiled includes water withdrawn from surface- and ground-water sources and used for various categories of water use. Total fresh (non-saline) water-use estimates for New York counties are presented below. Data are reported in million of gallons per day (Mgal/d).
| County | Public Supply | Commercial | Domestic | Industrial | Thermo- electric | Mining | Live- stock | Aqua- culture | Irrigation | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Albany | 9.99 | 0 | 0.19 | 0.92 | 0 | 0 | 0 | 0 | 0.01 | 11.11 |
| Allegany | 2.4 | 0 | 1.85 | 0.84 | 0 | 0 | 0 | 0 | 0.32 | 5.41 |
| Bronx | 0 | 0 | 0 | 3.48 | 0 | 0 | 0 | 0 | 0 | 3.48 |
| Broome | 25.22 | 0 | 2.38 | 4.22 | 0 | 0 | 0 | 0 | 0 | 31.82 |
| Cattaraugus | 7.44 | 0 | 2.44 | 2.68 | 0 | 0 | 0 | 0 | 0 | 12.56 |
| Cayuga | 1.3 | 0 | 2.09 | 0.2 | 0 | 0 | 0 | 0 | 0 | 3.59 |
| Chautauqua | 6.02 | 0 | 2.14 | 2.2 | 0 | 0 | 0 | 0 | 0 | 10.36 |
| Chemung | 8.68 | 0 | 0.29 | 2.34 | 0 | 0 | 0 | 0 | 0.02 | 11.33 |
| Chenango | 2.81 | 0 | 2.26 | 1.58 | 0 | 0 | 0 | 0 | 0 | 6.65 |
| Clinton | 0.74 | 0 | 2.35 | 0.35 | 0 | 0 | 0 | 0 | 0.25 | 3.69 |
| Columbia | 2 | 0 | 2.49 | 0.47 | 0 | 0 | 0 | 0 | 0 | 4.96 |
| Cortland | 5 | 0 | 1.11 | 2.2 | 0 | 0 | 0 | 0 | 0 | 8.31 |
| Delaware | 2.54 | 0 | 1.9 | 1.14 | 0 | 0 | 0 | 0 | 0 | 5.58 |
| Dutchess | 11.74 | 0 | 5.67 | 1.88 | 0 | 0 | 0 | 0 | 0.51 | 19.8 |
| Erie | 1.44 | 0 | 5.23 | 0.24 | 0 | 0 | 0 | 0 | 0.02 | 6.93 |
| Essex | 1.09 | 0 | 0.36 | 0.33 | 0 | 0 | 0 | 0 | 0 | 1.78 |
| Franklin | 1.93 | 0 | 1.4 | 0.2 | 0 | 0 | 0 | 0 | 0.02 | 3.55 |
| Fulton | 0.47 | 0 | 1.53 | 0.14 | 0 | 0 | 0 | 0 | 0 | 2.14 |
| Genesee | 1.97 | 0 | 2.04 | 1.01 | 0 | 0 | 0 | 0 | 0 | 5.02 |
| Greene | 0.64 | 0 | 1.84 | 0.07 | 0 | 0 | 0 | 0 | 0 | 2.55 |
| Hamilton | 0.47 | 0 | 0.13 | 0.02 | 0 | 0 | 0 | 0 | 0 | 0.62 |
| Herkimer | 2.16 | 0 | 1.39 | 0.45 | 0 | 0 | 0 | 0 | 0 | 4 |
| Jefferson | 2.17 | 0 | 0.45 | 1.34 | 0 | 0 | 0 | 0 | 0 | 3.96 |
| Kings | 0 | 0 | 0 | 13.93 | 0 | 0 | 0 | 0 | 0.52 | 14.45 |
| Lewis | 1.05 | 0 | 1.19 | 0.9 | 0 | 0 | 0 | 0 | 0 | 3.14 |
| Livingston | 1.28 | 0 | 1.79 | 0.51 | 0 | 0 | 0 | 0 | 0 | 3.58 |
| Madison | 1.46 | 0 | 1.96 | 0.84 | 0 | 0 | 0 | 0 | 0 | 4.26 |
| Monroe | 3.1 | 0 | 4.25 | 0.85 | 0 | 0 | 0 | 0 | 0 | 8.2 |
| Montgomery | 1.35 | 0 | 1.33 | 0.3 | 0 | 0 | 0 | 0 | 0 | 2.98 |
| Nassau | 183.37 | 0 | 0 | 11.31 | 0 | 0 | 0 | 0 | 4.55 | 199.23 |
| New York | 0 | 0 | 0 | 21.94 | 0 | 0 | 0 | 0 | 0 | 21.94 |
| Niagara | 0.01 | 0 | 1.61 | 0 | 0 | 0 | 0 | 0 | 0 | 1.62 |
| Oneida | 3.24 | 0 | 2.67 | 0.57 | 0 | 0 | 0 | 0 | 0 | 6.48 |
| Onondaga | 2.86 | 0 | 7.22 | 0.59 | 0 | 0 | 0 | 0 | 0 | 10.67 |
| Ontario | 1 | 0 | 1.16 | 0.53 | 0 | 0 | 0 | 0 | 0 | 2.69 |
| Orange | 11.83 | 0 | 6.7 | 2.07 | 0 | 0 | 0 | 0 | 2.12 | 22.72 |
| Orleans | 0.2 | 0 | 0.76 | 0.05 | 0 | 0 | 0 | 0 | 0 | 1.01 |
| Oswego | 4.83 | 0 | 3.74 | 2.09 | 0 | 0 | 0 | 0 | 0 | 10.66 |
| Otsego | 1.58 | 0 | 2.35 | 0.22 | 0 | 0 | 0 | 0 | 0 | 4.15 |
| Putnam | 2.1 | 0 | 4.56 | 0.44 | 0 | 0 | 0 | 0 | 0.12 | 7.22 |
| Queens | 48.24 | 0 | 0 | 11.49 | 0 | 0 | 0 | 0 | 0.82 | 60.55 |
| Rensselaer | 1.81 | 0 | 4.05 | 0.39 | 0 | 0 | 0 | 0 | 0 | 6.25 |
| Richmond | 0 | 0 | 0 | 1.67 | 0 | 0 | 0 | 0 | 0 | 1.67 |
| Rockland | 21.83 | 0 | 0.78 | 3.83 | 0 | 0 | 0 | 0 | 0 | 26.44 |
| St. Lawrence | 1.85 | 0 | 3.66 | 0.57 | 0 | 0 | 0 | 0 | 0 | 6.08 |
| Saratoga | 8 | 0 | 3.77 | 2.38 | 0 | 0 | 0 | 0 | 0.14 | 14.29 |
| Schenectady | 25.29 | 0 | 0.13 | 2.53 | 0 | 0 | 0 | 0 | 0 | 27.95 |
| Schoharie | 0.59 | 0 | 1.59 | 0.19 | 0 | 0 | 0 | 0 | 0 | 2.37 |
| Schuyler | 0.42 | 0 | 0.93 | 0.26 | 0 | 0 | 0 | 0 | 0 | 1.61 |
| Seneca | 0.11 | 0 | 0.98 | 0.03 | 0 | 0 | 0 | 0 | 0 | 1.12 |
| Steuben | 6.33 | 0 | 3.21 | 3.38 | 0 | 0 | 0 | 0 | 0.13 | 13.05 |
| Suffolk | 124.54 | 0 | 17.14 | 22.39 | 0 | 0 | 0 | 0 | 12.78 | 176.85 |
| Sullivan | 5.62 | 0 | 2.44 | 0.17 | 0 | 0 | 0 | 0 | 0.2 | 8.43 |
| Tioga | 3.33 | 0 | 2.06 | 1.44 | 0 | 0 | 0 | 0 | 0 | 6.83 |
| Tompkins | 1.11 | 0 | 0.35 | 0.11 | 0 | 0 | 0 | 0 | 0 | 1.57 |
| Ulster | 3.27 | 0 | 6.54 | 0.48 | 0 | 0 | 0 | 0 | 0.79 | 11.08 |
| Warren | 0.86 | 0 | 0.8 | 0.31 | 0 | 0 | 0 | 0 | 0 | 1.97 |
| Washington | 1.74 | 0 | 2.38 | 0.88 | 0 | 0 | 0 | 0 | 0 | 5 |
| Wayne | 1.37 | 0 | 1.44 | 0.74 | 0 | 0 | 0 | 0 | 0 | 3.55 |
| Westchester | 7.44 | 0 | 4.41 | 6.3 | 0 | 0 | 0 | 0 | 0 | 18.15 |
| Wyoming | 1.28 | 0 | 1.42 | 0.3 | 0 | 0 | 0 | 0 | 0 | 3 |
| Yates | 0.19 | 0 | 0.78 | 0.09 | 0 | 0 | 0 | 0 | 0 | 1.06 |
| Total | 582.7 | 0 | 141.68 | 145.37 | 0 | 0 | 0 | 0 | 23.32 | 893.07 |