The size of Preston is approximately 41.6 square kilometres. It has 12 parks covering nearly 20.5% of total area. The population of Preston in 2011 was 249 people. By 2016 the population was 131 showing a population decline of 47.4% in the area during that time. The predominant age group in Preston is 60-69 years. Households in Preston are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Preston work in a managers occupation. In 2011, 83% of the homes in Preston were owner-occupied compared with 87.8% in 2016.