The total population of Gainesville is estimated to be 276 with 116 males (42.03%) and 160 females (57.97%). There are 44 more females than males in Gainesville.
In 2022, the population of Gainesville was 168, a 1.18% decrease year-by-year from 2021. Previously, in 2021, Gainesville's population was 170, a decline of 1.73% compared to a population of 173 in 2020.
The median age in Gainesville, AL is 25.3, as per 2021 ACS 5-Year Estimates. Of the total population, 18.22% were under the age of 15, 38.14% aged 15 to 29, 40.25% aged 30 to 64, 3.39% aged 65 to 84, and 0.00% were 85 years of age and older.