The size of Bunbury is approximately 4.6 square kilometres. It has 17 parks covering nearly 7.6% of total area. The population of Bunbury in 2011 was 3,629 people. By 2016 the population was 3,758 showing a population growth of 3.6% in the area during that time. The predominant age group in Bunbury is 50-59 years. Households in Bunbury are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Bunbury work in a professional occupation. In 2011, 53.5% of the homes in Bunbury were owner-occupied compared with 58% in 2016. Currently the median sales price of houses in the area is $557,500.