The size of Ashbourne is approximately 39 square kilometres. It has 1 park covering nearly 0.1% of total area. The population of Ashbourne in 2011 was 261 people. By 2016 the population was 194 showing a population decline of 25.7% in the area during that time. The predominant age group in Ashbourne is 50-59 years. Households in Ashbourne are primarily couples with children and are likely to be repaying $2400 - $2999 per month on mortgage repayments. In general, people in Ashbourne work in a professional occupation. In 2011, 92.4% of the homes in Ashbourne were owner-occupied compared with 87.5% in 2016.