Jacksonville High School's primary rival school is North Pulaski High School, Jacksonville's other secondary school which is located on the west side of the city. Jacksonville is home to Little Rock Air Force Base, featuring one squadron known as the 50th Airlift Squadron Red Devils, perhaps the inspiration for the school mascot of Jacksonville High School. Maybe the reverse is true, as the JHS sports teams went by the name "Red Devils" many years before the 50th Airlift Squadron was located to LRAFB in 1973 and as the 50th Airlift Squadron had different squadron insignia during WWII & the Korean War.