The size of Barrabool is approximately 29.8 square kilometres. The population of Barrabool in 2011 was 202 people. By 2016 the population was 241 showing a population growth of 19.3% in the area during that time. The predominant age group in Barrabool is 50-59 years. Households in Barrabool are primarily couples with children and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Barrabool work in a managers occupation. In 2011, 89.1% of the homes in Barrabool were owner-occupied compared with 84.5% in 2016.