The size of Callcup is approximately 149.6 square kilometres. It has 21 parks covering nearly 93.6% of total area. The population of Callcup in 2011 was 491 people. By 2016 the population was 12 showing a population decline of 97.6% in the area during that time. The predominant age group in Callcup is 60-69 years. Households in Callcup are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Callcup work in a managers occupation. In 2006, 20.8% of the homes in Callcup were owner-occupied compared with 81.8% in 2011.