The size of Chiltern is approximately 200.7 square kilometres. It has 2 parks covering nearly 39.2% of total area. The population of Chiltern in 2011 was 1,639 people. By 2016 the population was 1,607 showing a population decline of 2.0% in the area during that time. The predominant age group in Chiltern is 50-59 years. Households in Chiltern are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Chiltern work in a trades occupation. In 2011, 82.1% of the homes in Chiltern were owner-occupied compared with 81.9% in 2016. Currently the median sales price of houses in the area is $362,500.