The size of Barramunga is approximately 88.5 square kilometres. The population of Barramunga in 2006 was 143 people. By 2011 the population was 234 showing a population growth of 63.6% in the area during that time. The predominant age group in Barramunga is 50-59 years. Households in Barramunga are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Barramunga work in a managers occupation. In 2006, 43.1% of the homes in Barramunga were owner-occupied compared with 77.4% in 2011.