St Mary's College is a private, Catholic, day school for girls', located on the northern city fringe of Hobart, Tasmania, Australia. Although predominantly a girl’s school, St Mary's accepts both boys and girls until Grade 2, and currently caters for approximately 770 students from Kindergarten to year 12. It is located on the grounds of St Mary's Cathedral, next to the Junior School campus of St Virgil's College. Boys that attend St Mary's for Kindergarten to Grade 2, generally make the transition across to the St Virgil's College Junior School Campus. St Mary's College is a member of the Alliance of Girls' Schools Australia. St Mary's College is also currently celebrating its one hundredth and fortieth birthday as a school of the Presentation Sisters. Its current slogan to celebrate this year is "St Mary's College. A proud past. A strong future". St Mary's College was originally founded by the Presentation Sisters in 1868, and although students are no longer exclusively taught by sisters of the order, they still administer the college. Originally there were two schools on the present-day campus - St Columba's (a free primary school for the poorer community) and Mt St Mary's.