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About Our Water
Water Service Area
Charleston Water System provides direct retail water service to 110,000 accounts, serving areas of Charleston, Berkeley, and Dorchester counties.
Searchable Service Area Map
To find out if a home, business, or vacant lot is in our water and / or sewer service area, view the
and search the address.
Service Availability for New Development
To find out if water and/or sewer service is available for a property, please complete the
Request for Service Availability Letter form
Charleston Water System also provides water on a wholesale basis to the Department of Defense and the following municipalities / utilities:
Dorchester County Public Works
Isle of Palms Water & Sewer Commission
Mount Pleasant Waterworks
St. Johns Water Company (serves Kiawah and Seabrook Islands)
Town of Folly Beach
Town of Sullivan's Island
Charleston Water System is a member of the
Partnership of Safe Water
and has won many honors and
for operational excellence.
Public System vs. Private Plumbing
Water for Community Events