It is in the south-west of the state, and includes much of the western part of Victoria. It is next to the South Australian border in the west, and the Bass Strait coast in the south. The Division includes the towns of Warnambool, Portland, Ararat, Hamilton, Stawell and Halls Gap. The Grampians and the Port Campbell National Parks are in the Division. Maryborough and Avoca will become part of Wannon at the 2013 federal election after changes that took place on December 24, 2010. 