DemographicsCannon Creek (Southern Downs - Qld) is approximately 10.88 square kilometres. In 2016 the population of Cannon Creek (Southern Downs - Qld) was 39. The population is 57% male and 43% female. On average the monthly mortgage repayments in Cannon Creek (Southern Downs - Qld) are $1800 to $2399. The most common weekly income bracket is $150 to $299 per week. Weekly rents in the area are on average $0 to $74.