The size of Waitui is approximately 15.6 square kilometres. It has 3 parks covering nearly 39.1% of total area. The population of Waitui in 2011 was 422 people. By 2016 the population was 96 showing a population decline of 77.3% in the area during that time. The predominant age group in Waitui is 60-69 years. Households in Waitui are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Waitui work in a professional occupation. In 2011, 87.7% of the homes in Waitui were owner-occupied compared with 90.7% in 2016.