DemographicsTarrenlea is approximately 79.56 square kilometres. In 2016 the population of Tarrenlea was 37. The population is 53% male and 47% female. On average the monthly mortgage repayments in Tarrenlea are $0 to $299. The most common weekly income bracket is $500 to $649 per week. Weekly rents in the area are on average $0 to $74.