The first class to graduate from Greenfield High School was the class of 1879. It was a three-year program to complete studies until 1887 when it became a four-year institution. The first four-year class to graduate was the class of 1888.[3] In 2018 the district added a resource officer position that was full time to the high school.[4]
Greenfield-Central High School has enjoyed success with its marching band program, the Greenfield-Central Cougar Pride. In Indiana State School Music Association (ISSMA) Marching Band Class B competition, the Cougar Pride placed eighth in 2005, ninth in 2014, and as state runner-up in 2016 and 2018.[5] In November 2019, the Cougar Pride won the ISSMA Class B Indiana State Marching Band Championship at Lucas Oil Stadium in Indianapolis.[6] After ISSMA competition was suspended for the 2020 season due to the worldwide COVID-19 pandemic, the Cougar Pride successfully defended their title by again winning the ISSMA Class B Indiana State Marching Band Championship on November 6, 2021, at Lucas Oil Stadium.[7]