The size of Spence is approximately 189.1 square kilometres. It has 2 parks covering nearly 13.2% of total area. The population of Spence in 2011 was 978 people. By 2016 the population was 35 showing a population decline of 96.4% in the area during that time. The predominant age group in Spence is 50-59 years. Households in Spence are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Spence work in a managers occupation. In 2011, 70.3% of the homes in Spence were owner-occupied compared with 72.8% in 2016.