The size of Cavan is approximately 141 square kilometres. The population of Cavan in 2011 was 275 people. By 2016 the population was 37 showing a population decline of 86.5% in the area during that time. The predominant age group in Cavan is 10-19 years. Households in Cavan are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Cavan work in a labourer occupation. In 2006, 34.7% of the homes in Cavan were owner-occupied compared with 60.6% in 2011.