It serves the towns of Eliot and South Berwick, as well as Rollinsford, New Hampshire.

The current site is about 10 miles (16 km) from both Portsmouth, New Hampshire, and Kittery, Maine.

The school offers a variety of varsity athletics.

In 1966, the towns of Eliot and South Berwick joined to form MSAD #35, and a new high school was built on Depot Road in Eliot.

The high school was relocated to Route 236 in South Berwick in 2000.