The size of Mella is approximately 26.6 square kilometres. It has 4 parks covering nearly 31.1% of total area. The population of Mella in 2011 was 328 people. By 2016 the population was 59 showing a population decline of 82.0% in the area during that time. The predominant age group in Mella is 50-59 years. Households in Mella are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Mella work in a managers occupation. In 2011, 70% of the homes in Mella were owner-occupied compared with 42.3% in 2016.