Minico competes in athletics in IHSAA Class 4A[3] and is a member of the Great Basin (West) Conference with Burley, Jerome, and Wood River, all located in the Magic Valley region of Idaho.

The 1982 team rallied to win the A-1 (now 5A) state title 7–4 over Lewiston,[21] returning to the final after an 11–10 loss to Borah of Boise the previous year.

Baseball coach Ben Frank's teaching position (biology) at MHS was one of 19 eliminated in budget cuts by the school district in 2012.

[25][26] The 2007 football team went undefeated (8–0) in the regular season and won the Great Basin (West) conference.

The Spartans defeated Rigby 49–19 in a playoff to qualify for the 4A state tournament, but lost by three points in the quarter-finals to Blackfoot, the eventual champions.

[27][28] Minico's main predecessor, Rupert High School, won three state titles: one in basketball (1925)[29] and two in track (1924, 1947).