DemographicsWesterway is approximately 32.87 square kilometres. In 2016 the population of Westerway was 225. The population is 55% male and 45% female. On average the monthly mortgage repayments in Westerway are $800 to $999. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $150 to $199.