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 The data compiled includes water withdrawn from surface- and ground-water sources and used for various categories of water use.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 | 48.18 | 0 | 0.19 | 4.43 | 49.81 | 0 | 0 | 0 | 0.06 | 102.67 |
| Allegany | 2.93 | 0 | 1.85 | 1.03 | 0 | 0 | 0 | 0 | 1.76 | 7.57 |
| Bronx | 0 | 0 | 0 | 3.48 | 0 | 0 | 0 | 0 | 0 | 3.48 |
| Broome | 31.47 | 0 | 2.38 | 5.27 | 76.01 | 0 | 0 | 0 | 0 | 115.13 |
| Cattaraugus | 8.59 | 0 | 2.44 | 3.09 | 0 | 0 | 0 | 0 | 0 | 14.12 |
| Cayuga | 9.71 | 0 | 2.09 | 1.51 | 0 | 0 | 0 | 0 | 0 | 13.31 |
| Chautauqua | 13.28 | 0 | 2.14 | 4.86 | 460.38 | 0 | 0 | 0 | 0 | 480.66 |
| Chemung | 13.1 | 0 | 0.29 | 3.53 | 0 | 0 | 0 | 0 | 0.42 | 17.34 |
| Chenango | 2.88 | 0 | 2.26 | 1.62 | 78.1 | 0 | 0 | 0 | 0 | 84.86 |
| Clinton | 6.78 | 0 | 2.35 | 3.2 | 0 | 0 | 0 | 0 | 1.25 | 13.58 |
| Columbia | 3.65 | 0 | 2.49 | 0.86 | 0 | 0 | 0 | 0 | 0.13 | 7.13 |
| Cortland | 5 | 0 | 1.11 | 2.2 | 0 | 0 | 0 | 0 | 0 | 8.31 |
| Delaware | 453.11 | 0 | 1.9 | 1.21 | 0 | 0 | 0 | 0 | 0 | 456.22 |
| Dutchess | 24.53 | 0 | 5.67 | 3.93 | 0 | 0 | 0 | 0 | 0.59 | 34.72 |
| Erie | 177.74 | 0 | 5.23 | 29.67 | 661.01 | 0 | 0 | 0 | 1.06 | 874.71 |
| Essex | 6.11 | 0 | 0.36 | 1.84 | 0 | 0 | 0 | 0 | 0 | 8.31 |
| Franklin | 5.68 | 0 | 1.4 | 0.58 | 0 | 0 | 0 | 0 | 1.11 | 8.77 |
| Fulton | 4.91 | 0 | 1.53 | 1.4 | 0 | 0 | 0 | 0 | 0 | 7.84 |
| Genesee | 4.75 | 0 | 2.04 | 2.44 | 0 | 0 | 0 | 0 | 0.22 | 9.45 |
| Greene | 3.14 | 0 | 1.84 | 0.36 | 0 | 0 | 0 | 0 | 0 | 5.34 |
| Hamilton | 0.82 | 0 | 0.13 | 0.03 | 0 | 0 | 0 | 0 | 0 | 0.98 |
| Herkimer | 6.91 | 0 | 1.39 | 1.45 | 0 | 0 | 0 | 0 | 0 | 9.75 |
| Jefferson | 10.37 | 0 | 0.45 | 6.39 | 0 | 0 | 0 | 0 | 0 | 17.21 |
| Kings | 0 | 0 | 0 | 13.93 | 0 | 0 | 0 | 0 | 0.52 | 14.45 |
| Lewis | 2.27 | 0 | 1.19 | 1.95 | 0 | 0 | 0 | 0 | 0 | 5.41 |
| Livingston | 4.66 | 0 | 1.79 | 1.87 | 0 | 0 | 0 | 0 | 0.12 | 8.44 |
| Madison | 2.46 | 0 | 1.96 | 1.42 | 0 | 0 | 0 | 0 | 0 | 5.84 |
| Monroe | 77.18 | 0 | 4.25 | 21.2 | 133.33 | 0 | 0 | 0 | 0.3 | 236.26 |
| Montgomery | 8.32 | 0 | 1.33 | 1.83 | 0 | 0 | 0 | 0 | 0 | 11.48 |
| 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 | 45.91 | 0 | 1.61 | 8.57 | 228.27 | 0 | 0 | 0 | 0 | 284.36 |
| Oneida | 26.85 | 0 | 2.67 | 4.74 | 0 | 0 | 0 | 0 | 0 | 34.26 |
| Onondaga | 72.5 | 0 | 7.22 | 14.97 | 0 | 0 | 0 | 0 | 0.18 | 94.87 |
| Ontario | 6.19 | 0 | 1.16 | 3.28 | 0 | 0 | 0 | 0 | 0 | 10.63 |
| Orange | 27.4 | 0 | 6.7 | 4.8 | 602.87 | 0 | 0 | 0 | 2.12 | 643.89 |
| Orleans | 2.34 | 0 | 0.76 | 0.62 | 0 | 0 | 0 | 0 | 0.44 | 4.16 |
| Oswego | 13.83 | 0 | 3.74 | 5.98 | 951.1 | 0 | 0 | 0 | 0.49 | 975.14 |
| Otsego | 2.91 | 0 | 2.35 | 0.41 | 0 | 0 | 0 | 0 | 0 | 5.67 |
| Putnam | 118.11 | 0 | 4.56 | 0.72 | 0 | 0 | 0 | 0 | 0.12 | 123.51 |
| Queens | 48.24 | 0 | 0 | 11.49 | 0 | 0 | 0 | 0 | 0.82 | 60.55 |
| Rensselaer | 18.37 | 0 | 4.05 | 3.94 | 0 | 0 | 0 | 0 | 0.49 | 26.85 |
| Richmond | 0 | 0 | 0 | 1.67 | 0 | 0 | 0 | 0 | 0 | 1.67 |
| Rockland | 25.25 | 0 | 0.78 | 4.43 | 561.9 | 0 | 0 | 0 | 0 | 592.36 |
| St. Lawrence | 8.1 | 0 | 3.66 | 2.49 | 0 | 0 | 0 | 0 | 0 | 14.25 |
| Saratoga | 11.82 | 0 | 3.77 | 3.52 | 0 | 0 | 0 | 0 | 0.57 | 19.68 |
| Schenectady | 25.33 | 0 | 0.13 | 2.53 | 0 | 0 | 0 | 0 | 0.01 | 28 |
| Schoharie | 114.98 | 0 | 1.59 | 0.71 | 0 | 0 | 0 | 0 | 0.01 | 117.29 |
| Schuyler | 0.74 | 0 | 0.93 | 0.46 | 0 | 0 | 0 | 0 | 0.15 | 2.28 |
| Seneca | 2.3 | 0 | 0.98 | 0.66 | 0 | 0 | 0 | 0 | 0 | 3.94 |
| Steuben | 8.09 | 0 | 3.21 | 4.32 | 56.87 | 0 | 0 | 0 | 2.56 | 75.05 |
| Suffolk | 124.59 | 0 | 17.14 | 22.4 | 0 | 0 | 0 | 0 | 12.78 | 176.91 |
| Sullivan | 138.05 | 0 | 2.44 | 0.21 | 0 | 0 | 0 | 0 | 0.2 | 140.9 |
| Tioga | 3.58 | 0 | 2.06 | 1.55 | 0 | 0 | 0 | 0 | 0 | 7.19 |
| Tompkins | 10.27 | 0 | 0.35 | 1.04 | 238.04 | 0 | 0 | 0 | 0 | 249.7 |
| Ulster | 439.54 | 0 | 6.54 | 1.47 | 0 | 0 | 0 | 0 | 1.58 | 449.13 |
| Warren | 8.02 | 0 | 0.8 | 2.87 | 0 | 0 | 0 | 0 | 0.03 | 11.72 |
| Washington | 3.66 | 0 | 2.38 | 1.85 | 0 | 0 | 0 | 0 | 0.57 | 8.46 |
| Wayne | 6.22 | 0 | 1.44 | 3.35 | 425.86 | 0 | 0 | 0 | 0 | 436.87 |
| Westchester | 125.53 | 0 | 4.41 | 21 | 1083.17 | 0 | 0 | 0 | 0 | 1234.11 |
| Wyoming | 3.61 | 0 | 1.42 | 0.85 | 0 | 0 | 0 | 0 | 0.24 | 6.12 |
| Yates | 0.82 | 0 | 0.78 | 0.38 | 80.92 | 0 | 0 | 0 | 0.01 | 82.91 |
| Total | 2565.05 | 0 | 141.68 | 297.11 | 5687.64 | 0 | 0 | 0 | 35.46 | 8726.94 |