The size of Wirrabara is approximately 224.9 square kilometres. It has 1 park. The population of Wirrabara in 2011 was 522 people. By 2016 the population was 402 showing a population decline of 23.0% in the area during that time. The predominant age group in Wirrabara is 50-59 years. Households in Wirrabara are primarily childless couples and are likely to be repaying $300 - $449 per month on mortgage repayments. In general, people in Wirrabara work in a managers occupation. In 2011, 79.5% of the homes in Wirrabara were owner-occupied compared with 82.8% in 2016. Currently the median sales price of houses in the area is $90,000.