DemographicsManobalai is approximately 147.53 square kilometres. In 2016 the population of Manobalai was 67. The population is 49% male and 51% female. On average the monthly mortgage repayments in Manobalai are $0 to $299. The most common weekly income bracket is $650 to $799 per week. Weekly rents in the area are on average $450 to $549.