DemographicsWillowvale (Vic.) is approximately 33.2 square kilometres. In 2016 the population of Willowvale (Vic.) was 7. The population is 50% male and 50% female. On average the monthly mortgage repayments in Willowvale (Vic.) are $0 to $299. The most common weekly income bracket is $400 to $499 per week. Weekly rents in the area are on average $0 to $74.