Plymouth, England, a city, seaport, and naval base in Devon, 190 miles (306 km) west-southwest of London. It is on the northern shore of Plymouth Sound, at the mouth of the Plym River. Its port handles both coastal and foreign shipping. Some of the city's buildings date from the 14th century. The Pilgrims aboard the Mayflowersailed for America from here in 1620.
Population (district): 240,727.