The size of Marsden Park is approximately 23.3 square kilometres. It has 1 park covering nearly 0.1% of total area. The population of Marsden Park in 2011 was 1,049 people. By 2016 the population was 1,005 showing a population decline of 4.2% in the area during that time. The predominant age group in Marsden Park is 60-69 years. Households in Marsden Park are primarily couples with children and are likely to be repaying $2400 - $2999 per month on mortgage repayments. In general, people in Marsden Park work in a clerical occupation. In 2011, 56.8% of the homes in Marsden Park were owner-occupied compared with 70% in 2016. Currently the median sales price of houses in the area is $715,000.