DemographicsPerth (Tas.) is approximately 72.2 square kilometres. In 2016 the population of Perth (Tas.) was 2965. The population is 49% male and 51% female. On average the monthly mortgage repayments in Perth (Tas.) 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.