For the primary school of similar name see Fort Street Public School Fort Street High School is a co-educational, academically selective, public high school currently located at Petersham, an inner western suburb of Sydney, New South Wales, Australia. Established in 1849, it is the oldest government high school in Australia, and today, it remains a public school operated by the New South Wales Department of Education and Communities (DEC). As a prominent selective school, it draws students from across metropolitan Sydney.