The size of Farnsfield is approximately 65.4 square kilometres. The population of Farnsfield in 2011 was 393 people. By 2016 the population was 139 showing a population decline of 64.6% in the area during that time. The predominant age group in Farnsfield is 40-49 years. Households in Farnsfield are primarily childless couples and are likely to be repaying not stated per month on mortgage repayments. In general, people in Farnsfield work in a managers occupation. In 2011, 67.7% of the homes in Farnsfield were owner-occupied compared with 53.8% in 2016.