Many of the teams compete in Western Indiana Conference competitions.

Sullivan High School's fine arts program is basic.

The music program is split into two performing categories: instrumental band (which also functions as the school's marching band and winter pep band), and vocal, which includes chorus and Golden Arrow Singers, and the school's advanced chorus.

Sullivan High School offers Baseball, Softball, Boys Basketball, Girls Basketball, Cheerleading, Boys Cross Country, Girls Cross Country, Football, Golf, Soccer, Boys Track, Girls Track, Volleyball, and Wrestling.

[3] Student clubs at Sullivan High School include Beta Club, National Honor Society, Spanish Club, Green Alliance, FCA (Fellowship of Christian athletes), Upward Bound, Chess Club, FCCLA, Key Club, FFA, Student Council, Tech Treck, JAG, and Super Mileage Team.