The size of Wetheron is approximately 125.7 square kilometres. The population of Wetheron in 2011 was 290 people. By 2016 the population was 46 showing a population decline of 84.1% in the area during that time. The predominant age group in Wetheron is 50-59 years. Households in Wetheron are primarily couples with children and are likely to be repaying $600 - $799 per month on mortgage repayments. In general, people in Wetheron work in a managers occupation. In 2011, 72.8% of the homes in Wetheron were owner-occupied compared with 53.4% in 2016.