The size of Steelton is approximately 26.3 square kilometres. The population of Steelton in 2011 was 201 people. By 2016 the population was 16 showing a population decline of 92.0% in the area during that time. The predominant age group in Steelton is 70-79 years. Households in Steelton are primarily childless couples and are likely to be repaying $600 - $799 per month on mortgage repayments. In general, people in Steelton work in a managers occupation. In 2011, 83.4% of the homes in Steelton were owner-occupied compared with 46.7% in 2016.