The size of Minnamoolka is approximately 2,744 square kilometres. It has 11 parks covering nearly 4.6% of total area. The population of Minnamoolka in 2011 was 320 people. By 2016 the population was 24 showing a population decline of 92.5% in the area during that time. The predominant age group in Minnamoolka is 0-9 years. Households in Minnamoolka are primarily couples with children and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Minnamoolka work in a managers occupation. In 2006, 31.6% of the homes in Minnamoolka were owner-occupied compared with 64.2% in 2011.