DemographicsMaclagan is approximately 76.46 square kilometres. In 2016 the population of Maclagan was 195. The population is 54% male and 46% female. On average the monthly mortgage repayments in Maclagan are $800 to $999. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $100 to $149.