The size of Glen Alpine is approximately 2.9 square kilometres. It has 10 parks covering nearly 3.9% of total area. The population of Glen Alpine in 2011 was 4,342 people. By 2016 the population was 4,568 showing a population growth of 5.2% in the area during that time. The predominant age group in Glen Alpine is 50-59 years. Households in Glen Alpine are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Glen Alpine work in a professional occupation. In 2011, 93% of the homes in Glen Alpine were owner-occupied compared with 91.7% in 2016. Currently the median sales price of houses in the area is $1,140,000.