Government College Ikorodu was established on 21 September 1974, as a co-educational secondary school with an initial intake of about 200 students.

These students were transferred from other secondary schools in Lagos state from where they were seconded based on the common entrance examination applications that year.

In the first year of the school, it occupied a temporary site on Obafemi Awolowo Way, Ikorodu (then referred to as Agbowa Road).

The college was opened on 23 September 1974, by the then Governor of Lagos state, Brigadier Mobolaji Johnson.

The 5 Lagos State Government Colleges are: Membership in the Government College Ikorodu Old Student Association is open to all who attended for at least one academic year.