The size of Memana is approximately 337.3 square kilometres. It has 20 parks covering nearly 30.7% of total area. The population of Memana in 2011 was 447 people. By 2016 the population was 98 showing a population decline of 78.1% in the area during that time. The predominant age group in Memana is 50-59 years. Households in Memana are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Memana work in a managers occupation. In 2011, 71.5% of the homes in Memana were owner-occupied compared with 52.4% in 2016.