The size of Middleton is approximately 35.4 square kilometres. It has 7 parks covering nearly 0.4% of total area. The population of Middleton in 2011 was 1,074 people. By 2016 the population was 1,154 showing a population growth of 7.4% in the area during that time. The predominant age group in Middleton is 60-69 years. Households in Middleton are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Middleton work in a professional occupation. In 2011, 72.5% of the homes in Middleton were owner-occupied compared with 75.8% in 2016. Currently the median sales price of houses in the area is $678,500.