The size of Wymah is approximately 103.5 square kilometres. It has 2 parks covering nearly 1.5% of total area. The population of Wymah in 2011 was 323 people. By 2016 the population was 19 showing a population decline of 94.1% in the area during that time. The predominant age group in Wymah is 50-59 years. Households in Wymah are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Wymah work in a managers occupation. In 2011, 75.5% of the homes in Wymah were owner-occupied compared with 80% in 2016.