Charleston Water System has been providing quality drinking water service to the Greater Charleston area since 1917.

We have 105,000 water accounts serving more than 400,000 people, including wholesale service to the Department of Defense and the following municipalities/utilities:

• Mt. Pleasant Waterworks
• St. Johns Water Company (serves Kiawah and Seabrook Islands)
• Dorchester County Public Works
• Town of Folly Beach
• Town of Sullivan's Island
• Isle of Palms Water & Sewer Commission
• Town of Lincolnville

Charleston Water System is a member of the Partnership of Safe Water and has won many honors and awards for operational excellence.

(Click to enlarge service area map)