Scarborough is a town in Cumberland County on the southern coast of the U.S. state of Maine. Located about 7 miles (11 km) south of Portland, Scarborough is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area. The population was 22,135 at the 2020 census, making it the 6th most populous municipality in Maine, as well as the largest in the state to be referred to as "Town".