DemographicsQuantong is approximately 35.22 square kilometres. In 2016 the population of Quantong was 310. The population is 55% male and 45% female. On average the monthly mortgage repayments in Quantong are $1400 to $1799. The most common weekly income bracket is $1000 to $1249 per week. Weekly rents in the area are on average $0 to $74.