DemographicsGray (Tas.) is approximately 33.59 square kilometres. In 2016 the population of Gray (Tas.) was 69. The population is 55% male and 45% female. On average the monthly mortgage repayments in Gray (Tas.) are $300 to $449. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $0 to $74.