The size of Bannockburn is approximately 82.7 square kilometres. It has 4 parks covering nearly 4.1% of total area. The population of Bannockburn in 2011 was 3,513 people. By 2016 the population was 5,256 showing a population growth of 49.6% in the area during that time. The predominant age group in Bannockburn is 0-9 years. Households in Bannockburn are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Bannockburn work in a trades occupation. In 2011, 86.8% of the homes in Bannockburn were owner-occupied compared with 84.4% in 2016. Currently the median sales price of houses in the area is $700,000.