 73.8% of people living in Park Ridge South were born in Australia.The other top responses for country of birth were England 6.2%, New Zealand 4.6%, Taiwan 1%, China 0.8%, Croatia 0.7%.84.2% of people spoke only English at home; the next most common languages were 1.7% Khmer, 1.5% Mandarin, 1.1% Hmong, 1% Croatian, 0.7% Italian.