Triton High also serves the nearby towns of Rowley and Salisbury.

Home of the Vikings, Triton Regional High School teams sport the colors of blue and white, and compete within the Cape Ann League.

In October 2024, Triton Regional High School's School Resource Officer, John R. Lucey III, resigned[2] from the Newbury, Massachusetts, Police Department following an investigation into his relationship with a recently graduated Triton student.

Documents obtained through the Freedom of Information Act say this was the second known instance of Lucey--whose father was formerly the Chief of Police in Newbury--dating a former student, the first being his later ex-wife, whom he began dating a year after her graduation in 2012[2].

While the inquiry determined his actions were unbecoming of an officer, no violations of state law were found.