The size of Medindie is approximately 0.7 square kilometres. The population of Medindie in 2011 was 1,128 people. By 2016 the population was 1,187 showing a population growth of 5.2% in the area during that time. The predominant age group in Medindie is 10-19 years. Households in Medindie are primarily couples with children and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Medindie work in a professional occupation. In 2011, 87.4% of the homes in Medindie were owner-occupied compared with 86.9% in 2016. Currently the median sales price of houses in the area is $2,052,450.