DemographicsNorwin is approximately 115.77 square kilometres. In 2016 the population of Norwin was 94. The population is 55% male and 45% female. On average the monthly mortgage repayments in Norwin are $0 to $299. The most common weekly income bracket is $2000 to $2999 per week. Weekly rents in the area are on average $0 to $74.