The size of Barwon Downs is approximately 130 square kilometres. The population of Barwon Downs in 2011 was 363 people. By 2016 the population was 135 showing a population decline of 62.8% in the area during that time. The predominant age group in Barwon Downs is 50-59 years. Households in Barwon Downs are primarily childless couples and are likely to be repaying $600 - $799 per month on mortgage repayments. In general, people in Barwon Downs work in a managers occupation. In 2011, 85.8% of the homes in Barwon Downs were owner-occupied compared with 88.1% in 2016. Currently the median sales price of houses in the area is $105,750.