DemographicsNirranda South is approximately 33.83 square kilometres. In 2016 the population of Nirranda South was 76. The population is 58% male and 43% female. On average the monthly mortgage repayments in Nirranda South are $0 to $299. The most common weekly income bracket is $150 to $299 per week. Weekly rents in the area are on average $0 to $74.