is a city in Essex County, Massachusetts, United States on the Merrimack River. As of the 2000 census, the city had a total population of 72,043. Surrounding communities include Methuen to the north, Andover to the southwest, and North Andover to the southeast. It and Salem are the county seats of Essex County. Lawrence is also part of the Merrimack Valley.
Manufacturing products of the city include electronic equipment, textiles, footwear, paper products, computers, and foodstuffs. Lawrence was, for a while, the residence of Robert Frost, where he published his first poem.
Lawrence is located at (42.703741, -71.162979).
According to the United States Census Bureau, the city has a total area of 7.4 square miles (19.2 km²), of which, 7.0 square miles (18.0 km²) of it is land and 0.4 square miles (1.2 km²) of it (6.07%) is water.
Aside from the Merrimack River, other water features include the Spicket River, which flows into the Merrimack from Methuen, and the Shawsheen River, which forms the southeastern border of the city. Additionally, Lawrence has two power canals that were formerly used to provide hydropower to the mills - one on the north bank of the river, the other on the south. Channeling water into these canals is the Great Stone Dam, which lies across the entire Merrimack and was, at the time of its construction in the 1840s, the largest dam in the world.
The highest point in Lawrence is the top of Tower Hill in the northwest corner of the city, rising approximately 240 feet above sea level. Other prominent hills include Prospect Hill, in the northeast corner of the city, and Mount Vernon, along the southern edge of the city. Most industrial activity was concentrated in the flatlands along the rivers.
Den Rock Park, a wooded conservation district on the southern edge of Lawrence that spans the Lawrence-Andover town line, provides recreation for nature lovers and rock-climbers alike.