Newburyport is a small coastal city in Essex County, Massachusetts, United States, 28 miles (61 km) northeast of Boston. The population was 19,189 at the 2000 census. An historic seaport with a vibrant tourism industry, Newburyport includes part of Plum Island. The mooring, winter storage and maintenance of recreational boats, motor and sail, still contribute a large part of the city's income. A coast guard station keeps a watchful eye on boating activity, especially in the swift tidal currents of the Merrimack River. At the edge of Newbury Marshes, delineating Newburyport to the south, an industrial park provides a wide range of jobs. Newburyport is on a major north-south highway, Interstate 95. The outer circumferential highway of Boston, Interstate 495, passes nearby in Amesbury. A colonial road, the Newburyport Turnpike (U. S. Route 1), still traverses Newburyport on its way north. The commuter rail line to Boston ends in a new station at Newburyport. The earlier Boston and Maine Railroad leading further north was discontinued.