According to the 2011 census, there were 454 residents in Cawdor. 87.2% of people were born in Australia. The most common other countries of birth were New Zealand 2.2%, England 1.8% and Thailand 1.1%. In Cawdor 90.7% of people only spoke English at home. Other languages spoken at home included Italian 1.3%, Greek 1.1% and Maltese 0.9%. The most common responses for religion in Cawdor were Catholic 32.7%, Anglican 32.5% and No Religion 8.4%.