DemographicsSurges Bay is approximately 8.31 square kilometres. In 2016 the population of Surges Bay was 127. The population is 51% male and 49% female. On average the monthly mortgage repayments in Surges Bay are $1000 to $1399. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $200 to $224.