The size of Hawthorndene is approximately 5.1 square kilometres. It has 11 parks covering nearly 7% of total area. The population of Hawthorndene in 2011 was 3,178 people. By 2016 the population was 3,304 showing a population growth of 4.0% in the area during that time. The predominant age group in Hawthorndene is 40-49 years. Households in Hawthorndene are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Hawthorndene work in a professional occupation. In 2011, 88.6% of the homes in Hawthorndene were owner-occupied compared with 88.7% in 2016. Currently the median sales price of houses in the area is $606,000.