The size of Wallaroo is approximately 48.2 square kilometres. It has 30 parks covering nearly 1.3% of total area. The population of Wallaroo in 2011 was 3,225 people. By 2016 the population was 3,462 showing a population growth of 7.3% in the area during that time. The predominant age group in Wallaroo is 60-69 years. Households in Wallaroo are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Wallaroo work in a labourer occupation. In 2011, 64.3% of the homes in Wallaroo were owner-occupied compared with 61.3% in 2016. Currently the median sales price of houses in the area is $287,500.