The size of Middlemount is approximately 503.7 square kilometres. It has 11 parks covering nearly 0.1% of total area. The population of Middlemount in 2011 was 1,914 people. By 2016 the population was 1,831 showing a population decline of 4.3% in the area during that time. The predominant age group in Middlemount is 30-39 years. Households in Middlemount are primarily couples with children and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Middlemount work in a machinery operators and drivers occupation. In 2011, 2.8% of the homes in Middlemount were owner-occupied compared with 3.6% in 2016. Currently the median sales price of houses in the area is $95,000.