DemographicsElphinstone (Toowoomba - Qld) is approximately 26.67 square kilometres. In 2016 the population of Elphinstone (Toowoomba - Qld) was 64. The population is 49% male and 51% female. On average the monthly mortgage repayments in Elphinstone (Toowoomba - Qld) are $1000 to $1399. The most common weekly income bracket is $150 to $299 per week. Weekly rents in the area are on average $0 to $74.