Petrie is in the northern suburbs of Brisbane, and includes Bald Hills, Bracken Ridge, Carseldine, Clontarf, Deception Bay, Fitzgibbon, Griffin, Kippa-Ring, Mango Hill, Margate, North Lakes, Redcliffe, Rothwell, Scarborough, Woody Point, and parts of Aspley, Bridgeman Downs, and Burpengary. 