San Antonio Water System is a public utility company owned by the city of San Antonio. Founded in 1992, the company serves approximately 1 million people in the urbanized part of Bexar County, Texas. This population includes approximately 300,000 separate customers. San Antonio Water System's service areas are established by its permits from state regulatory authorities. The service area for water supply includes most of San Antonio, several suburban municipalities and adjacent parts of Bexar County, Texas. In addition to serving its own retail customers, San Antonio Water System also provides wholesale water supplies to several smaller utility systems within its area boundary.