The size of Sanderston is approximately 54.2 square kilometres. It has 2 parks covering nearly 0.8% of total area. The population of Sanderston in 2011 was 481 people. By 2016 the population was 80 showing a population decline of 83.4% in the area during that time. The predominant age group in Sanderston is 40-49 years. Households in Sanderston are primarily childless couples and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Sanderston work in a trades occupation. In 2011, 84.7% of the homes in Sanderston were owner-occupied compared with 109.7% in 2016.