DemographicsSmythes Creek is approximately 26.67 square kilometres. In 2016 the population of Smythes Creek was 1467. The population is 51% male and 49% female. On average the monthly mortgage repayments in Smythes Creek are $1400 to $1799. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $350 to $449.