Sunnybank Hills is an outer southern suburb in the City of Brisbane, Queensland, Australia. In the 2021 census, Sunnybank Hills had a population of 18,085 people. Geography Sunnybank Hills is about from Brisbane CBD, in Queensland, Australia. It is a large suburb, and adjoins the suburbs of Calamvale, Coopers Plains, Sunnybank, MacGregor, Algester, Acacia Ridge and Runcorn. Sunnybank Hills has numerous ridges and hills, with lower wetter areas in the north and east. These form the marshes near Sunnybank and Runcorn railway stations. There are many parks and greenspaces in the area. The soil is fertile and watered by numerous small creeks, including a large one that flows north–south across the suburb, and the suburb borders on the small wildfowl habitat and wetlands of neighbouring Calamvale Creek. History Sunnybank Hills was originally part of a much larger area known as Coopers Plains. In 1885, the railway line was extended from Yeerongpilly, and names had to be given to the railway stations built along the line. One of the stations was named after a local farm, Sunny Brae, when of land were taken over for the railway. Brae is the Scottish word for the English word bank, so the area was given boundaries and named Sunnybank. The area of Sunnybank Hills was officially defined in 1971, although it had been unofficially called this for many years. Autism Therapy & Education Centre opened on 23 July 1977. Sunnybank Hills State School No 1889 opened on 30 January 1979. The Sunnybank Hills Public Library opened in 1987 with a major refurbishment in 2009. In the , Sunnybank Hills recorded a population of 16,830 people: 50.4% female and 49.6% male. The median age of the Sunnybank Hills population was 34 years, 3 years below the Australian median. Children aged under 15 years made up 16.3% of the population and people aged 65 years and over made up 12.4% of the population. Sunnybank Hills is a very multicultural suburb. 46.7% of people living in Sunnybank Hills were born in Australia, compared to the national average of 69.8%; the next most common countries of birth were China 10.5%, Taiwan 6.6%, New Zealand 4.3%, India 2.5%, England 2.2%. Just under half (49.7%) of people spoke only English at home; the next most popular languages were 17.8% Mandarin, 6.5% Cantonese, 2.3% Vietnamese, 2.2% Korean, 1.2% Greek. According to the , Sunnybank Hills includes the largest communities of both