The size of Willowbank is approximately 20.6 square kilometres. It has 5 parks covering nearly 1.6% of total area. The population of Willowbank in 2011 was 1,254 people. By 2016 the population was 1,309 showing a population growth of 4.4% in the area during that time. The predominant age group in Willowbank is 50-59 years. Households in Willowbank are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Willowbank work in a trades occupation. In 2011, 63.9% of the homes in Willowbank were owner-occupied compared with 71.2% in 2016. Currently the median sales price of houses in the area is $476,000.