The size of Cangai is approximately 130.3 square kilometres. It has 3 parks covering nearly 13.4% of total area. The population of Cangai in 2011 was 185 people. By 2016 the population was 26 showing a population decline of 85.9% in the area during that time. The predominant age group in Cangai is 40-49 years. Households in Cangai are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Cangai work in a managers occupation. In 2011, 70.6% of the homes in Cangai were owner-occupied compared with 100% in 2016.