The size of Wanilla is approximately 158 square kilometres. It has 5 parks covering nearly 2.6% of total area. The population of Wanilla in 2011 was 221 people. By 2016 the population was 83 showing a population decline of 62.4% in the area during that time. The predominant age group in Wanilla is 50-59 years. Households in Wanilla are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Wanilla work in a managers occupation. In 2011, 86.7% of the homes in Wanilla were owner-occupied compared with 86.2% in 2016.