The size of Menai is approximately 13.6 square kilometres. It has 8 parks covering nearly 14% of total area. The population of Menai in 2011 was 10,529 people. By 2016 the population was 10,275 showing a population decline of 2.4% in the area during that time. The predominant age group in Menai is 50-59 years. Households in Menai are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Menai work in a professional occupation. In 2011, 80.6% of the homes in Menai were owner-occupied compared with 80.7% in 2016. Currently the median sales price of houses in the area is $1,450,000.