DemographicsStanmore (Qld) is approximately 48.66 square kilometres. In 2016 the population of Stanmore (Qld) was 437. The population is 50% male and 50% female. On average the monthly mortgage repayments in Stanmore (Qld) are $1800 to $2399. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $225 to $275.