DemographicsBunya Mountains is approximately 372.56 square kilometres. In 2016 the population of Bunya Mountains was 144. The population is 56% male and 44% female. On average the monthly mortgage repayments in Bunya Mountains are $1800 to $2399. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $0 to $74.