The size of Willina is approximately 14.5 square kilometres. It has 1 park. The population of Willina in 2011 was 418 people. By 2016 the population was 56 showing a population decline of 86.6% in the area during that time. The predominant age group in Willina is 40-49 years. Households in Willina are primarily couples with children and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Willina work in a community and personal service occupation. In 2011, 71.6% of the homes in Willina were owner-occupied compared with 90.9% in 2016.