The size of Coolaroo is approximately 3.1 square kilometres. It has 1 park covering nearly 2.8% of total area. The population of Coolaroo in 2011 was 3,261 people. By 2016 the population was 3,183 showing a population decline of 2.4% in the area during that time. The predominant age group in Coolaroo is 20-29 years. Households in Coolaroo are primarily couples with children and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Coolaroo work in a labourer occupation. In 2011, 69.4% of the homes in Coolaroo were owner-occupied compared with 66.1% in 2016. Currently the median sales price of houses in the area is $502,000.