Following the closure of the first Geelong Grammar, Campbell established a committee to found a new Presbyterian school.

In 1908, the college returned to the ownership of the Presbyterian Church of Australia and became a member of the Associated Public Schools of Victoria (APS).

[8] The Geelong College Chapel was dedicated on 8 March 1989 as the centre of the school's spiritual life.

At the middle school, there are four houses: Pegasus (white), Bellerophon (blue), Minerva (red) and Helicon (green), which meet for sporting events throughout each year.

Geelong College offers its senior students the Victorian Certificate of Education (VCE).

Choices offered for summer sports include badminton, cricket (boys only), softball (girls only), tennis and rowing.

Winter sports include Australian rules football (boys only), netball (girls only), soccer and basketball.