The size of Herston is approximately 1.6 square kilometres. It has 5 parks covering nearly 8.2% of total area. The population of Herston in 2011 was 1,831 people. By 2016 the population was 2,216 showing a population growth of 21.0% in the area during that time. The predominant age group in Herston is 20-29 years. Households in Herston are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Herston work in a professional occupation. In 2011, 42.3% of the homes in Herston were owner-occupied compared with 35.5% in 2016. Currently the median sales price of houses in the area is $1,030,000.