2024: Johnson appeared in 11 games for the Cowboys with five starts during the season. He finished the season with a career-best 30 tackles. He recorded 19 solo stops along with 11 assisted tackles. Johnson also added a pass breakup. He had a career-high five tackles against Idaho, BYU and North Texas. He also excels in the classroom as an Academic All-MW selection. He was also named to the 2024 Academic All-District Football team for Division I as selected by College Sports Communicators (CSC).

2023: Johnson appeared in all 13 games for the Cowboys in a reserve role and was one of the top special teamers for the Pokes. He finished the season with seven total tackles with one tackle for loss. He also added a pass breakup and recovered a fumble. He recorded a career-high two tackles against Portland State and recovered a fumble against Boise State.

2022: Johnson redshirted and did not appear in any games for the Cowboys.

2021: Redshirted for the Cowboys in his first season with the program.

High School: Andrew Johnson was named to the Sports Illustrated High School All-America Watch List prior to the 2020 season. Johnson was a unanimous Class 4A First Team All-State selection at wide receiver his senior season as selected by the Wyoming Coaches Association (WCA). Class 4A is the largest classification in the state of Wyoming. It was the second consecutive year he earned First Team All-State from the WCA at wide receiver. Johnson also earned First Team All-State from the WCA at defensive back both his junior and senior seasons. As a senior, he was runner-up for the WCA Offensive Player of the Year. Johnson led the state of Wyoming in receiving yards for all classifications his senior season, with 1,050 receiving yards. He averaged 105.0 receiving yards per game. Johnson also led the state in receptions, with 77. His top single-game performance of his senior season saw him catch six passes for 173 yards and one touchdown versus Thunder Basin High. His junior season of 2019, he was named to the Casper Star-Tribune Super 25 as a wide receiver, cornerback and punter. He played for head football coach Mike Apodaca.

Personal: Majoring in Construction Management at UW.