Southington residents Sally Lewis and her cousin Adin Lewis left bequests to build the Lewis Academy, which when it opened in 1848 provided a classical education including "Latin, Greek, mathematics, geography, and other branches higher than are taught in the common school."

[3] Southington High School offers a hierarchical system with classes designed to suit student ability level.

Southington High School offers a number of Advanced Placement courses as well as for-credit foreign language courses through the University of Connecticut's Early College Experience program.

Some other courses, such as Accounting II, will also offer college credit if completed with an unweighted grade above 75.

The Emblem is Southington High School's student newspaper.