The size of Whetstone is approximately 555.6 square kilometres. It has 2 parks covering nearly 27.7% of total area. The population of Whetstone in 2011 was 491 people. By 2016 the population was 55 showing a population decline of 88.8% in the area during that time. The predominant age group in Whetstone is 0-9 years. Households in Whetstone are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Whetstone work in a managers occupation. In 2011, 66.3% of the homes in Whetstone were owner-occupied compared with 68.4% in 2016.