The size of Aintree is approximately 6.8 square kilometres. It has 2 parks covering nearly 2.9% of total area. The population of Aintree in 2011 was 1,349 people. By 2016 the population was 1,537 showing a population growth of 13.9% in the area during that time. The predominant age group in Aintree is 40-49 years. Households in Aintree are primarily couples with children and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Aintree work in a machinery operators and drivers occupation. In 2011, 69.5% of the homes in Aintree were owner-occupied compared with 63.6% in 2016. Currently the median sales price of houses in the area is $730,000.