The Collie shire offices, Western Australia. – Calistemon, CC BY-SA 4.0 – Wikimedia Commons Shire Of Collie is located in Western Australia. About 8,812 people live here (as of 2021). Between 2011 and 2021, the population fell from 9,127 to 8,812. The region lies at 202 metres above sea level. Its area extends over around 1,709.8 square kilometres. The region is divided into 14 Subregions. Shire Of Collie is local government area in Western Australia. For more information, see www.collie.wa.gov.au.