[citation needed] As of 2014[update], Gosford High was the only fully selective school on the Central Coast, making admission very competitive.

[6] Tony Rudd retired at the beginning of the 2019 academic year with previous deputy Adrienne Scalese taking over the position temporarily.

[1] Notable among the former staff are Dr Mark Butler (now retired), recipient of the Prime Minister's Prize for Excellence in Science Teaching in Secondary Schools in 2004, who has been elected to the National Curriculum Board,[7] and Rebecca Donoghue, Head of Visual Arts, who received the Minister's Award for Excellence in Teaching in 2013 (now retired, replaced by Wendy Mortimer)[8] and Michael Chamberlain, who was falsely convicted with wife Lindy in the death of their daughter Azaria, later exonerated.

The school also hosts an annual Kerle Comp, in which students form bands to perform the music of Bobby King.

The school holds annual swimming, athletics and cross country carnivals, with achieving students competing in higher level competitions.