Hamilton

Hamilton, NJ receives a water quality score of 70/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 7 public water systems serving the area.

Hamilton's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.

Hamilton's score of 70 is 4 points above the New Jersey state average of 66, and below the nationwide average of roughly 78/100 across all U.S. states.

Living in this mid-size New Jersey city means relying on water infrastructure shaped by the dense, older urban and suburban footprint typical of the Mid-Atlantic. Hamilton's fair water quality rating reflects the persistent challenges faced by utility networks operating in areas with a heavy industrial legacy. For prospective homebuyers, these regional factors suggest that while local tap water is functional, older distribution systems may impact the day-to-day experience. Consequently, residents often evaluate the unique considerations of historical municipal infrastructure when managing their home's water needs.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our New Jersey water quality rankings report →