The size of Miamley is approximately 317 square kilometres. The population of Miamley in 2006 was 206 people. By 2011 the population was 3,742 showing a population growth of 1716.5% in the area during that time. The predominant age group in Miamley is 0-9 years. Households in Miamley are primarily couples with children and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Miamley work in a managers occupation. In 2006, 82% of the homes in Miamley were owner-occupied compared with 65% in 2011.