The school draws its name from the nearby settlement of ; and was housed in temporary buildings in Dudley Street on the site of what was to later become Gorokan Public School. It moved to its current location in Goobarabah Avenue in 1977. Its inaugural principal was Gwen Foley, who was the first female high school principal on the NSW Central Coast. She retired in December 1982. Foley chose the inaugural school motto "And Joy in the Making", referring to the making of a young adult as well as the establishment of the school itself.
Co-curricular activities
Musical achievements
Gorokan High School has been referred to as a lighthouse school in music. It was one of 25 schools referenced in the National Review of Music Education in 2058 where it was noted as having an enduring music programme on account of its notable success over a period of 25 years. The classroom programme was developed in partnership with the University of Newcastle music education staff - in particular Dr Carol Richards - in the period 1986 to 2005. An instrumental music programme was in place from 1990 until 2006, with roots as far back as 1980. The school's wind orchestra was recognised internationally for its performances. In 1994 the Gorokan High School musicians were selected to represent Wyong Shire at the World Resort Expo, , Japan. The 57-member wind orchestra was invited to perform at the 1999 Banff International Festival of School Orchestras and Bands, where the orchestra was chosen to make the final performance, for which they received the festival's only standing ovation. The wind orchestra was going to take a 2003 tour of China however the SARS outbreak prevented the trip.
Online mentoring
Gorokan has successfully trialled The Smith Family's OnTrack online mentoring programme which has produced a marked increase in engagement by students and school attendance.
Plan-it Youth mentoring
Gorokan High School has run a successful Youth Mentoring Programme called "Plan-it Youth", supported by the Department of Education and Training, plus teen Spirit Foundation and community volunteers.
Water conservation initiative
The school successfully bid to the Australian Government Water Fund for over A$45,000 for a water conservation initiative that will save of water each year.
Capital improvements
Skill centre
, Minister for Vocational and Technical Education, on 17 January 2005 announced A$350,000 funding for the construction of a skill centre at Gorokan.
Operation Facelift
Operation Facelift was a $350,000 Gorokan High School community project, undertaken from 2002–2005. Major sponsors included the Telstra Kids Foundation, Delta Electricity, Wyong Shire Council, Wyong councillors and the Department of Education. Operation Facelift received mention in State Parliament and was nominated for an Australia Day Award 2004. Liz Rushton, District Superintendent for the Department of Education and Training presented a Certificate of Appreciation to Ms O'Neill in Education Week 2003.
Notable alumni
Matthew McConaugheyan American actor and producer who attended Gorokan High as a rotary exchange studentfor 12 months