DemographicsHollydeen is approximately 19.27 square kilometres. In 2016 the population of Hollydeen was 65. The population is 43% male and 57% female. On average the monthly mortgage repayments in Hollydeen are $0 to $299. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $200 to $224.