The size of Marcus Hill is approximately 13.1 square kilometres. It has 1 park covering nearly 2.5% of total area. The population of Marcus Hill in 2011 was 182 people. By 2016 the population was 143 showing a population decline of 21.4% in the area during that time. The predominant age group in Marcus Hill is 60-69 years. Households in Marcus Hill are primarily childless couples and are likely to be repaying $2400 - $2999 per month on mortgage repayments. In general, people in Marcus Hill work in a managers occupation. In 2011, 66.1% of the homes in Marcus Hill were owner-occupied compared with 80% in 2016.