The size of Mirrabooka is approximately 5.1 square kilometres. It has 22 parks covering nearly 7.6% of total area. The population of Mirrabooka in 2011 was 7,933 people. By 2016 the population was 8,095 showing a population growth of 2.0% in the area during that time. The predominant age group in Mirrabooka is 0-9 years. Households in Mirrabooka are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Mirrabooka work in a labourer occupation. In 2011, 64.3% of the homes in Mirrabooka were owner-occupied compared with 65.6% in 2016. Currently the median sales price of houses in the area is $390,000.