Waterboro is a town in York County, Maine, United States. The population was 7,693 at the 2010 census. It is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area.
The town includes the districts of North (04061), South (04087), and East (04030) Waterboro, in addition to the largest development in southern Maine, Lake Arrowhead Community. The introduction of Maine subdivision regulation, and Maine Planning Boards, is the direct result of the creation of the largest subdivision, Lake Arrowhead Community. The reaction of the Maine State Legislature was mandatory Planning Boards, and subdivision regulation.