DemographicsGellibrand is approximately 94.43 square kilometres. In 2016 the population of Gellibrand was 210. The population is 53% male and 47% female. On average the monthly mortgage repayments in Gellibrand are $1400 to $1799. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $225 to $275.