DemographicsRupanyup is approximately 414.15 square kilometres. In 2016 the population of Rupanyup was 536. The population is 52% male and 48% female. On average the monthly mortgage repayments in Rupanyup are $0 to $299. The most common weekly income bracket is $400 to $499 per week. Weekly rents in the area are on average $150 to $199.