The size of Amherst is approximately 33.7 square kilometres. It has 4 parks covering nearly 7% of total area. The population of Amherst in 2011 was 714 people. By 2016 the population was 54 showing a population decline of 92.4% in the area during that time. The predominant age group in Amherst is 60-69 years. Households in Amherst are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Amherst work in a professional occupation. In 2011, 86.4% of the homes in Amherst were owner-occupied compared with 80% in 2016.