The size of Cudgen is approximately 13 square kilometres. The population of Cudgen in 2006 was 1,708 people. By 2011 the population was 850 showing a population decline of 50% in the area during that time. The predominant age group in Cudgen is 0-14 years. Households in Cudgen are primarily couples with children. In general, people in Cudgen work in a Professional occupation. In 2006, 80.2% of the homes in Cudgen were owner-occupied compared with 72.3% in 2011.