The size of Wollongbar is approximately 17.8 square kilometres. It has 1 park covering nearly 0.2% of total area. The population of Wollongbar in 2011 was 2,395 people. By 2016 the population was 2,825 showing a population growth of 18.0% in the area during that time. The predominant age group in Wollongbar is 10-19 years. Households in Wollongbar are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Wollongbar work in a professional occupation. In 2011, 75.3% of the homes in Wollongbar were owner-occupied compared with 75.1% in 2016. Currently the median sales price of houses in the area is $680,000.