Lakeville is a village and census-designated place in the town of Salisbury in Litchfield County, Connecticut, on Lake Wononskopomuc. The village includes Lakeville Historic District, which is listed on the National Register of Historic Places. The district represents about 10 acres (40,000 m2) of the village center of Lakeville where the street grid remains virtually unchanged from the late 19th century. The district is defined to include properties and sites that contributed to the historical development of the village. It is noted that the district area "is surrounded by a much larger area containing many additional historic industrial, commercial, residential, religious, and recreational sites and structures." Lakeville is also a US Postal Service ZIP code (06039) that includes the hamlet of Lime Rock as well as the village of Lakeville and the surrounding area.
Until 1846, Lakeville was called "Furnace Village", due to the location there of one of the early blast furnaces of the historic Salisbury iron industry. Benjamin B. Hotchkiss, inventor of the Hotchkiss gun was born in Lakeville. The Hotchkiss School, founded by his widow Maria Bissell Hotchkiss in 1891, is located in Lakeville. It was originally a boys' boarding school but later became coeducational. Lakeville is also the home of Indian Mountain School which is a boarding school for students Pre-K through 9th. It was founded in 1922.
Ethan Allen made munitions in Lakeville during the American Revolution.