The size of Kiana is approximately 226.8 square kilometres. The population of Kiana in 2011 was 231 people. By 2016 the population was 9 showing a population decline of 96.1% in the area during that time. The predominant age group in Kiana is 0-9 years. Households in Kiana are primarily couples with children and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Kiana work in a labourer occupation. In 2006, 66.2% of the homes in Kiana were owner-occupied compared with 76.1% in 2011.