Home of the oldest power mill in America, this community has had a diverse economy that included textile and shoe manufacturing, farming, timber, and fishing. During its heyday, a boat called a gundalow was built to haul goods from the smaller inland rivers to the faster-moving Piscataqua River. A replica of the gundalow can be seen during the summer at various wharfs throughout the region. It is used primarily for educational purposes. Historic homes including the Sara Orne Jewett House and the Old Hamilton House are open to visitors in the summer as is the Counting House, home of the Old Berwick Historical Society.
Vaughn Woods State Park, the Salmon Falls River and Mt. Agamenticus are all popular recreation areas for hiking, biking, and picnicking. South Berwick and Eliot share a public school district, but South Berwick is also home to Berwick Academy, a highly respected college preparatory day school. Route 236 is the main artery connecting Kittery, Eliot, and South Berwick.