The size of Gainsford is approximately 400.6 square kilometres. The population of Gainsford in 2011 was 479 people. By 2016 the population was 3 showing a population decline of 99.4% in the area during that time. The predominant age group in Gainsford is 40-49 years. Households in Gainsford are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Gainsford work in a managers occupation. In 2011, 56.2% of the homes in Gainsford were owner-occupied compared with 66.6% in 2016.