Pinjarra is a town in the Peel region of Western Australia along the South Western Highway, 86 kilometres from the state capital, Perth and 21 kilometres south-east of the coastal city of Mandurah. Its local government area is the Shire of Murray. At the 2011 census, Pinjarra had a population of 4,255. Pinjarra is an area rich in history, and is the home town of a former State Premier – Sir Ross McLarty. It is near the site of the infamous Battle of Pinjarra, where between 14 and 40 Aboriginal Noongars were killed by British colonists in 1834.