The 5-10 Johnson was a member of Mattawan's 2012 MHSAA Division I State Runner-Up Team. She picked up all-conference, all-division, all-region and all-state accolades for the second year in a row as a third baseman in 2012. Johnson hit .434 on 43 hits with 31 runs and a .485 slugging percentage in 2011 when she led Mattawan to a state championship. She's also competed in the ASA Nationals and twice won a Michigan ASA State Championship. A four-year varsity player, she's also seen action at left field in her prep career and has been involved in the school's leadership program along with earning honor roll accolades.