The size of Moonbria is approximately 265.3 square kilometres. The population of Moonbria in 2011 was 246 people. By 2016 the population was 6 showing a population decline of 97.6% in the area during that time. The predominant age group in Moonbria is 50-59 years. Households in Moonbria are primarily couples with children and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Moonbria work in a managers occupation. In 2006, 48.7% of the homes in Moonbria were owner-occupied compared with 66.7% in 2011.