DemographicsGlenarbon is approximately 290.32 square kilometres. In 2016 the population of Glenarbon was 36. The population is 51% male and 49% female. On average the monthly mortgage repayments in Glenarbon are $0 to $299. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $0 to $74.