The size of Mount Cotton is approximately 42.6 square kilometres. It has 16 parks covering nearly 20.6% of total area. The population of Mount Cotton in 2011 was 4,804 people. By 2016 the population was 6,834 showing a population growth of 42.3% in the area during that time. The predominant age group in Mount Cotton is 0-9 years. Households in Mount Cotton are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Mount Cotton work in a professional occupation. In 2011, 85.5% of the homes in Mount Cotton were owner-occupied compared with 80.7% in 2016. Currently the median sales price of houses in the area is $605,000.