It covers a large area in the Werribee Valley with its Central Business District centred along Main Street between Bennett Street to the north, Grant Street/Gisborne Road to the west, Young/Lord Streets to the east and Waddell/Simpson Streets to the south. Bacchus Marsh Village shopping centre is its main indoor shopping mall. The state suburb by the same name is home to 6,394 people and contains the central business district. The population of the urban area of Bacchus Marsh has grown by 34.6% over the decade leading to 2016.