The size of Charlemont is approximately 10.5 square kilometres. The population of Charlemont in 2011 was 1,798 people. By 2016 the population was 347 showing a population decline of 80.7% in the area during that time. The predominant age group in Charlemont is 50-59 years. Households in Charlemont are primarily couples with children and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Charlemont work in a trades occupation. In 2011, 72.5% of the homes in Charlemont were owner-occupied compared with 75.8% in 2016. Currently the median sales price of houses in the area is $490,000.