A metal and enamel device 1 3/16 inches (3.02 cm) in height consisting of a disc divided horizontally gold over buff, bearing a wildcat's face between its forepaws above a vertical railroad track issuing from base in perspective, flanked parallel on each side by three gold bars. Attached below the disc, a black scroll reversed gold inscribed "WILDCATS" in gold letters, the ends supporting the hilts of two upright black swords which overlap the edges of the disc.
Black and gold are the school's colors. The wildcat is the school's mascot. The railroad tracks allude to J.W. Dillon, the town's namesake and a prominent citizen in establishing a railroad in the local area. The pallets symbolize rows of grain which are indigenous to the area.
The shoulder loop insignia was authorized 21 September 1992.