The size of Coldstream is approximately 55.8 square kilometres. It has 11 parks covering nearly 0.4% of total area. The population of Coldstream in 2011 was 2,338 people. By 2016 the population was 2,170 showing a population decline of 7.2% in the area during that time. The predominant age group in Coldstream is 30-39 years. Households in Coldstream are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Coldstream work in a trades occupation. In 2011, 84.8% of the homes in Coldstream were owner-occupied compared with 85.1% in 2016. Currently the median sales price of houses in the area is $730,500.