The size of Port Augusta is approximately 20.4 square kilometres. It has 21 parks covering nearly 3.6% of total area. The population of Port Augusta in 2011 was 7,334 people. By 2016 the population was 6,568 showing a population decline of 10.4% in the area during that time. The predominant age group in Port Augusta is 50-59 years. Households in Port Augusta are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Port Augusta work in a community and personal service occupation. In 2011, 57.3% of the homes in Port Augusta were owner-occupied compared with 54.7% in 2016. Currently the median sales price of houses in the area is $150,000.