The size of Banjup is approximately 14.2 square kilometres. It has 11 parks covering nearly 5.4% of total area. The population of Banjup in 2011 was 1,399 people. By 2016 the population was 2,087 showing a population growth of 49.2% in the area during that time. The predominant age group in Banjup is 20-29 years. Households in Banjup are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Banjup work in a professional occupation. In 2011, 90.4% of the homes in Banjup were owner-occupied compared with 81.6% in 2016. Currently the median sales price of houses in the area is $1,230,000.