The size of Fern Tree is approximately 8 square kilometres. It has 10 parks covering nearly 11.4% of total area. The population of Fern Tree in 2011 was 665 people. By 2016 the population was 701 showing a population growth of 5.4% in the area during that time. The predominant age group in Fern Tree is 40-49 years. Households in Fern Tree are primarily couples with children. In general, people in Fern Tree work in a professional occupation. In 2011, 88.4% of the homes in Fern Tree were owner-occupied compared with 93.2% in 2016. Currently the median sales price of houses in the area is $560,000.