DemographicsTimbumburi is approximately 42.72 square kilometres. In 2016 the population of Timbumburi was 142. The population is 49% male and 51% female. On average the monthly mortgage repayments in Timbumburi are $1800 to $2399. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $350 to $449.