 To enroll at the school, pupils go through several selection processes to ensure that all pupils have a high academic standard.Larne Grammar School has 60 teachers and 772 pupils, giving the school a pupil teacher ratio of 12.7 pupils per teacher, which is much lower than the Northern Ireland average of 15.6 for Grammar Schools, and 16.8 for all schools delivering secondary education.All subjects have at least two teachers, with many having more.