The size of Willalooka is approximately 379.9 square kilometres. It has 4 parks covering nearly 0.4% of total area. The population of Willalooka in 2011 was 272 people. By 2016 the population was 133 showing a population decline of 51.1% in the area during that time. The predominant age group in Willalooka is 40-49 years. Households in Willalooka are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Willalooka work in a managers occupation. In 2011, 60.4% of the homes in Willalooka were owner-occupied compared with 79.6% in 2016.