The size of Parilla is approximately 739.9 square kilometres. It has 3 parks covering nearly 3.9% of total area. The population of Parilla in 2011 was 410 people. By 2016 the population was 181 showing a population decline of 55.9% in the area during that time. The predominant age group in Parilla is 50-59 years. Households in Parilla are primarily couples with children and are likely to be repaying not stated per month on mortgage repayments. In general, people in Parilla work in a managers occupation. In 2011, 69.7% of the homes in Parilla were owner-occupied compared with 81.6% in 2016.