The size of Willyung is approximately 36.2 square kilometres. It has 1 park covering nearly 1.8% of total area. The population of Willyung in 2011 was 412 people. By 2016 the population was 568 showing a population growth of 37.9% in the area during that time. The predominant age group in Willyung is 0-9 years. Households in Willyung are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Willyung work in a trades occupation. In 2011, 69.6% of the homes in Willyung were owner-occupied compared with 75.4% in 2016. Currently the median sales price of houses in the area is $279,000.