St Johns College began in 1969 as a result of the amalgamation of the Mercy School and the De La Salle College. The College catered for Catholic education for boys and girls from Year 7 to 10 and operated on the old De La Salle College site in George Street. In 1986, the College was extended to include Year 11. Year 7 and 8 were moved to new buildings at Sheraton Road. With the first HSC in 1987, more extensions were built to accommodate Year 9 at Sheraton Road. In June 1991, the College was amalgamated on one site at Sheraton Road. The George Street site had been sold to TAFE. Since then, the College has developed the College Music Centre (2004); opened the College Shoppe to meet student needs for uniform and school supplies (1996); constructed a range of sporting fields (1997), developed and expanded Agriculture within the school (over 1997 to 2008); constructed an up-to-date Industrial Arts Complex (1998) and constructed a Human Movement Centre containing gymnasium, dance studio, drama studio and multi purpose indoor sports facility (2002). In 2010 extensions to the College Library were commenced. These extensions provided a large Senior Study complex, a mini tiered theatre, offices and a seminar room. Access to high speed internet and computer technology was also included. The College has also established a fully networked computer facility with high speed internet access. It includes 5 computer laboratories and access to technology that includes the electronic delivery of lessons and textbooks. The College has a network of over 800 computers in 2014. At the end of Term 3 in 2014, a Student Services Centre with a reception area to allow students to sign in/sign out was completed. The Centre also provides students with access to the Pastoral Care Coordinator, Year Coordinators, Counsellors and teachers. It also includes Boys and Girls sick bays and student meetings rooms. The College now enters its third year with classes in the Orana Trade Training Centre. This centre is a consortium with Dubbo Christian School, Macquarie Anglican Grammar School and St Marys Central School, Wellington. Classes in all the following Frameworks are successfully underway: VET Hospitality, Metal and Engineering and Primary Industries in both Years 11 and 12.