The size of Caerleon is approximately 5.5 square kilometres. It has 2 parks covering nearly 1.5% of total area. The population of Caerleon in 2011 was 9,829 people. By 2016 the population was 10,912 showing a population growth of 11.0% in the area during that time. The predominant age group in Caerleon is 0-9 years. Households in Caerleon are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Caerleon work in a trades occupation. In 2011, 60.8% of the homes in Caerleon were owner-occupied compared with 59.7% in 2016.