DemographicsGreenhill (Vic.) is approximately 10.63 square kilometres. In 2016 the population of Greenhill (Vic.) was 54. The population is 56% male and 44% female. On average the monthly mortgage repayments in Greenhill (Vic.) are $1000 to $1399. The most common weekly income bracket is $500 to $649 per week. Weekly rents in the area are on average $0 to $74.