The size of Mingay is approximately 77.8 square kilometres. The population of Mingay in 2011 was 926 people. By 2016 the population was 44 showing a population decline of 95.2% in the area during that time. The predominant age group in Mingay is 10-19 years. Households in Mingay are primarily couples with children and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Mingay work in a managers occupation. In 2006, 19.7% of the homes in Mingay were owner-occupied compared with 76.3% in 2011.