DemographicsLower Turners Marsh is approximately 8.83 square kilometres. In 2016 the population of Lower Turners Marsh was 37. The population is 58% male and 42% female. On average the monthly mortgage repayments in Lower Turners Marsh 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.