 74.2% of people living in Thorneside were born in Australia.The other top responses for country of birth were New Zealand 6.4%, England 5.7%, Scotland 0.8%, South Africa 0.7%, Ireland 0.7%.90.6% of people spoke only English at home; the next most common languages were 0.4% Spanish, 0.3% Punjabi, 0.3% Russian, 0.3% French, 0.3% Japanese.