DemographicsWybong is approximately 107.82 square kilometres. In 2016 the population of Wybong was 125. The population is 47% male and 53% female. On average the monthly mortgage repayments in Wybong are $1800 to $2399. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $200 to $224.