JROTC has been a part of Lowell High since the passage National Defense Act in 1916 and has helped many cadets become successful. One notable alumnus  is former Battalion Commander William Hewlett who founded HP. The program allows students to see  and realize their potential and embrace their capabilities in a maturing environment.

All Special Units within JROTC are optional to join, however all members must be enrolled in the JROTC program. The teams compete in either the Annual Fall Competition or at the Annual 91st Drill Competition. In addition to competing, they participate in various events ranging from school wide to city wide parades as well other various functions. The fall competing teams are Drum Corp, Squad Drill, Color Guard, and Guidon. The spring competing teams are Drill Platoon, Exhibition Drill Team or Girls Drill Team, our Flag Drill Team or Boy's Drill Team and our Raider Challenge Team.  The summer competing teams are our Academic Bowl and Leadership Symposium Teams.