Summerville

Summerville, SC receives a water quality score of 99/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 6 public water systems serving the area.

Summerville's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Summerville's score of 99 is 10 points above the South Carolina state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.

For families and prospective homebuyers looking at the mid-size city of Summerville, South Carolina, the local tap water delivers exemplary performance across the area's seven water systems. Situated in the Southeast coastal plain, these systems effectively manage the environmental demands of an agricultural landscape transitioning into expanding urban centers. This high level of quality across the local systems ensures that residents can trust the safety of their home's water supply on a daily basis.

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