The size of Poltalloch is approximately 108.7 square kilometres. The population of Poltalloch in 2011 was 407 people. By 2016 the population was 47 showing a population decline of 88.5% in the area during that time. The predominant age group in Poltalloch is 10-19 years. Households in Poltalloch are primarily couples with children and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Poltalloch work in a labourer occupation. In 2006, 23.9% of the homes in Poltalloch were owner-occupied compared with 47.8% in 2011.