More than 65 percent of the County (or 2,654 square miles) is unincorporated, meaning that it does not lie within a city boundary. For the population of nearly 1 million people living in these areas, the County Board of Supervisors acts as their city council, and the supervisor representing a specific area acts as the city mayor. County departments provide the municipal services for these areas. There are approximately 120 unincorporated areas in LA County.