The size of Darch is approximately 3.1 square kilometres. It has 4 parks covering nearly 7.1% of total area. The population of Darch in 2011 was 6,118 people. By 2016 the population was 7,051 showing a population growth of 15.3% in the area during that time. The predominant age group in Darch is 10-19 years. Households in Darch are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Darch work in a professional occupation. In 2011, 85.8% of the homes in Darch were owner-occupied compared with 83.3% in 2016. Currently the median sales price of houses in the area is $626,250.