The size of Swanston is approximately 96.5 square kilometres. It has 23 parks covering nearly 22.6% of total area. The population of Swanston in 2011 was 230 people. By 2016 the population was 6 showing a population decline of 97.4% in the area during that time. The predominant age group in Swanston is 70-79 years. Households in Swanston are primarily childless couples and are likely to be repaying not stated per month on mortgage repayments. In general, people in Swanston work in a managers occupation. In 2006, 63.8% of the homes in Swanston were owner-occupied compared with 58.1% in 2011.