The size of Strathalbyn is approximately 117 square kilometres. It has 3 parks covering nearly 0.1% of total area. The population of Strathalbyn in 2011 was 5,906 people. By 2016 the population was 6,511 showing a population growth of 10.2% in the area during that time. The predominant age group in Strathalbyn is 60-69 years. Households in Strathalbyn are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Strathalbyn work in a trades occupation. In 2011, 72.7% of the homes in Strathalbyn were owner-occupied compared with 73.2% in 2016. Currently the median sales price of houses in the area is $450,000.