DemographicsMiddle Falbrook is approximately 11.07 square kilometres. In 2016 the population of Middle Falbrook was 92. The population is 49% male and 51% female. On average the monthly mortgage repayments in Middle Falbrook are $2400 to $2999. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $275 to $349.