The size of Geranium is approximately 335.5 square kilometres. It has 6 parks covering nearly 2.5% of total area. The population of Geranium in 2011 was 270 people. By 2016 the population was 107 showing a population decline of 60.4% in the area during that time. The predominant age group in Geranium is 60-69 years. Households in Geranium are primarily childless couples and are likely to be repaying $450 - $599 per month on mortgage repayments. In general, people in Geranium work in a managers occupation. In 2011, 78.4% of the homes in Geranium were owner-occupied compared with 88.3% in 2016.