DemographicsYelarbon is approximately 441.84 square kilometres. In 2016 the population of Yelarbon was 364. The population is 51% male and 49% female. On average the monthly mortgage repayments in Yelarbon are $800 to $999. The most common weekly income bracket is $400 to $499 per week. Weekly rents in the area are on average $0 to $74.