In 2022, the population of Farmer was 15, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Farmer's population was 15, a decline of 0.00% compared to a population of 15 in 2020.
The median age in Farmer, SD is 9.9, as per 2021 ACS 5-Year Estimates. Of the total population, 63.77% were under the age of 15, 0.00% aged 15 to 29, 33.33% aged 30 to 64, 2.90% aged 65 to 84, and 0.00% were 85 years of age and older.