The Division of Maribyrnong is an Australian Electoral Division in the state of Victoria. It is in the north-western suburbs of Melbourne. It includes Moonee Ponds, Essendon, Niddrie, Keilor East, Avondale Heights, Tullamarine, Airport West, Sunshine and Brooklyn. Over the years the boundaries have been redrawn and the Division has been slowly moving west. It originally included the suburbs of Footscray and North Melbourne. According to the 2006 census, this electorate has the most Catholics in Australia with 44.4% of population.