Sparta Township is a suburban and rural municipality in eastern Sussex County, centered around the historic village of Sparta and the Lake Mohawk community. Route 15 provides the main regional connection, linking the township with Dover, Interstate 80, Newton, and communities farther north. Sparta contains established residential neighborhoods, lake associations, schools, medical and professional offices, shopping areas, farms, parks, and wooded open land. Lake Mohawk, with its boardwalk and distinctive architecture, is one of the township’s best-known destinations. Other lakes and natural areas contribute to a landscape shaped by the ridges and valleys of the New Jersey Highlands. Sparta borders Lafayette, Hardyston, Ogdensburg, Byram, Hopatcong, and Jefferson Township. Development is concentrated around Route 15 and several village areas, while outlying sections retain a lower-density character. The township’s combination of regional access, lake living, local institutions, and open countryside has made it one of Sussex County’s principal residential and business communities.