Water Use in New Jersey
The future health and welfare of the Nation's population is dependent upon a continuing supply of uncontaminated fresh water. Increasing withdrawals and increasing demands for instream flows are limiting the water available for future use.
The USGS compiles water-use data from numerous sources for all parts of the county, and since 1950 has published a series of Circulars on the estimated use of water in the United States at 5-year intervals. These Circulars contain State-level estimates of the amount of public- and self-supplied water used for public supply, domestic, industrial, irrigation, livestock, mining, power generation, and other purposes. The water-use data collected and compiled in New Jersey are an integral part of the nationwide assessment of water supply and demand.
Freshwater Use in New Jersey, 2000
Data from supporting data files for Circular 1268: Estimates Use of Water in the United States in 2000
Water use in New Jersey, 2000 (Water-use values are in million gallons per day (Mgal/d) Populations are in thousands)
| County | Population | Groundwater use | Surface-water use | Total |
| Atlantic | 252.55 | 40.92 | 3.03 | 43.95 |
| Bergen | 884.12 | 29.41 | 102.46 | 131.87 |
| Burlington | 423.39 | 43.86 | 128.75 | 172.61 |
| Camden | 508.93 | 49.06 | 1.57 | 50.63 |
| Cape May | 102.33 | 17.81 | 7.40 | 25.21 |
| Cumberland | 146.44 | 45.81 | 65.54 | 111.35 |
| Essex | 793.63 | 26.30 | 6.98 | 33.28 |
| Gloucester | 254.67 | 34.49 | 24.58 | 59.07 |
| Hudson | 608.98 | 0.20 | 0.00 | 0.20 |
| Hunterdon | 121.99 | 15.67 | 83.94 | 99.61 |
| Mercer | 350.76 | 13.66 | 679.07 | 692.73 |
| Middlesex | 750.16 | 44.25 | 3.91 | 48.16 |
| Monmouth | 615.30 | 23.47 | 41.27 | 64.74 |
| Morris | 470.21 | 61.71 | 61.89 | 123.60 |
| Ocean | 510.92 | 55.19 | 13.93 | 69.12 |
| Passaic | 489.05 | 8.57 | 192.66 | 201.23 |
| Salem | 64.29 | 10.88 | 15.24 | 26.12 |
| Somerset | 297.49 | 13.81 | 134.59 | 148.40 |
| Sussex | 144.17 | 13.21 | 9.01 | 22.22 |
| Union | 522.54 | 15.89 | 6.52 | 22.41 |
| Warren | 102.44 | 20.23 | 3.30 | 23.53 |
| Total | 8,414.36 | 1584.40 | 1,586.64 | 2,170.04 |
Freshwater use in New Jersey, 2000, by category of use Water-use values are in million gallons per day
| County | Public supply | Domestic | Industrial | Irrigation | Livestock | Mining | Thermo- electric power | Total |
| Atlantic | 28.97 | 5.58 | 1.36 | 8.02 | 0.02 | 0.00 | 0.00 | 43.95 |
| Bergen | 112.29 | 2.16 | 17.05 | 0.35 | 0.02 | 0.00 | 0.00 | 131.87 |
| Burlington | 50.44 | 4.83 | 5.08 | 105.36 | 0.14 | 6.51 | 0.25 | 172.61 |
| Camden | 45.87 | 2.10 | 0.53 | 0.62 | 0.02 | 1.49 | 0.00 | 50.63 |
| Cape May | 12.45 | 3.51 | 0.21 | 1.09 | 0.02 | 7.27 | 0.66 | 25.21 |
| Cumberland | 17.68 | 4.22 | 13.80 | 5.81 | 0.07 | 69.77 | 0.00 | 111.35 |
| Essex | 32.21 | 0.38 | 0.22 | 0.47 | 0.00 | 0.00 | 0.00 | 33.28 |
| Gloucester | 21.00 | 3.85 | 26.07 | 4.62 | 0.10 | 3.43 | 0.00 | 59.07 |
| Hudson | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 |
| Hunterdon | 86.42 | 6.27 | 5.77 | 0.73 | 0.22 | 0.00 | 0.20 | 99.61 |
| Mercer | 40.88 | 3.25 | 0.40 | 0.36 | 0.04 | 0.00 | 647.80 | 692.73 |
| Middlesex | 30.89 | 1.49 | 14.10 | 1.66 | 0.02 | 0.00 | 0.00 | 48.16 |
| Monmouth | 56.48 | 4.25 | 0.79 | 3.07 | 0.15 | 0.00 | 0.00 | 64.74 |
| Morris | 102.95 | 10.19 | 2.42 | 1.39 | 0.04 | 6.61 | 0.00 | 123.60 |
| Ocean | 49.64 | 7.34 | 3.44 | 1.27 | 0.03 | 6.86 | 0.54 | 69.12 |
| Passaic | 184.25 | 3.07 | 13.85 | 0.05 | 0.01 | 0.00 | 0.00 | 201.23 |
| Salem | 4.42 | 1.95 | 14.99 | 3.50 | 0.24 | 0.00 | 1.02 | 26.12 |
| Somerset | 142.22 | 4.49 | 0.93 | 0.66 | 0.10 | 0.00 | 0.00 | 148.40 |
| Sussex | 6.16 | 7.27 | 0.24 | 0.25 | 0.19 | 8.11 | 0.00 | 22.22 |
| Union | 17.76 | 0.18 | 4.26 | 0.20 | 0.00 | 0.00 | 0.01 | 22.41 |
| Warren | 7.39 | 3.28 | 5.81 | 0.05 | 0.25 | 0.29 | 0.00 | 23.53 |
| Total | 1050.37 | 79.66 | 131.52 | 139.53 | 1.68 | 110.34 | 650.48 | 2170.04 |
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