The size of Bunbartha is approximately 66.2 square kilometres. It has 1 park covering nearly 7.5% of total area. The population of Bunbartha in 2011 was 440 people. By 2016 the population was 265 showing a population decline of 39.8% in the area during that time. The predominant age group in Bunbartha is 50-59 years. Households in Bunbartha are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Bunbartha work in a managers occupation. In 2011, 81.7% of the homes in Bunbartha were owner-occupied compared with 86.9% in 2016.