The size of Wilston is approximately 1.4 square kilometres. It has 5 parks covering nearly 10.1% of total area. The population of Wilston in 2011 was 3,871 people. By 2016 the population was 3,934 showing a population growth of 1.6% in the area during that time. The predominant age group in Wilston is 40-49 years. Households in Wilston are primarily couples with children and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Wilston work in a professional occupation. In 2011, 62.6% of the homes in Wilston were owner-occupied compared with 62.1% in 2016. Currently the median sales price of houses in the area is $1,292,500.