DemographicsGymbowen is approximately 140.19 square kilometres. In 2016 the population of Gymbowen was 52. The population is 46% male and 54% female. On average the monthly mortgage repayments in Gymbowen are $0 to $299. The most common weekly income bracket is $150 to $299 per week. Weekly rents in the area are on average $0 to $74.