The towns composing the district are: Students receive a full academic education including: The College Board placed Tri-County Regional Vocational Technical High School on the 2014 AP District Honor Roll for the school’s significant gains in student access to and success in Advanced Placement courses.

Tri-County was one of 547 school districts in the United States and Canada to be named to the 5th annual Honor Roll.

[4] Ninety-four percent of Tri-County tenth graders scored a proficient or higher on the ELA portion of the Massachusetts Comprehensive Assessment System test in the spring of 2014.

As a result of their performance, Tri-County was named a Level 1 school on the state's 5-point accountability system for the third straight year.

The league is made up of the following high schools: Tri-County also offers Adult Education courses.