The size of Mount Eccles is approximately 23.1 square kilometres. The population of Mount Eccles in 2011 was 443 people. By 2016 the population was 98 showing a population decline of 77.9% in the area during that time. The predominant age group in Mount Eccles is 60-69 years. Households in Mount Eccles are primarily childless couples and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Mount Eccles work in a managers occupation. In 2011, 85.1% of the homes in Mount Eccles were owner-occupied compared with 92.4% in 2016.