DemographicsMoonbi is approximately 198.9 square kilometres. In 2016 the population of Moonbi was 1126. The population is 47% male and 53% female. On average the monthly mortgage repayments in Moonbi are $1400 to $1799. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $200 to $224.