The size of Murroon is approximately 45 square kilometres. The population of Murroon in 2011 was 276 people. By 2016 the population was 74 showing a population decline of 73.2% in the area during that time. The predominant age group in Murroon is 60-69 years. Households in Murroon are primarily couples with children and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Murroon work in a managers occupation. In 2011, 78.9% of the homes in Murroon were owner-occupied compared with 83.9% in 2016.