Founded in 1961, originally as a boys-only school, Peninsula Grammar began enrolling girls from 1994.

The school has a non-selective enrolment policy and caters for approximately 1,190 students from Kindergarten to Year 12.

[2] Co-educational from 1994 and an Anglican school, Peninsula's chaplain for twenty-four years (1974–1998) – the Rev.

John Leaver – initiated the founding of several other similar Anglican or Ecumenical co-educational schools in Victoria.

[3] In addition to catering for the boarding of international students (notably from China, South Korea and Vietnam), Peninsula Grammar operates multiple overseas campuses, largely in South East Asia.