DemographicsMilbong is approximately 24.6 square kilometres. In 2016 the population of Milbong was 161. The population is 51% male and 49% female. On average the monthly mortgage repayments in Milbong are $1000 to $1399. The most common weekly income bracket is $1000 to $1249 per week. Weekly rents in the area are on average $0 to $74.