Gainesville is a town located in Sumter County, Alabama. Gainesville has a 2026 population of 159. Gainesville is currently declining at a rate of -1.24% annually and its population has decreased by -8.09% since the most recent census, which recorded a population of 173 in 2020.
The median age in Gainesville is 35.2 years: 25.1 years for males, and 35.9 years for females. For every 100 females there are 73.5 males.
Data after 2023 is projected based on recent change
Overall: 35.2 years
Female: 35.9 years
Male: 25.1 years
There are 153 adults, (21 of whom are seniors) in Gainesville.
Female: 136 (57.6%)
Male: 100 (42.4%)
The racial composition of Gainesville includes 85.17% Black or African American, 13.98% White, and smaller percentages for Two or more races and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Black or African American | 201 | 85.17% |
| White | 33 | 13.98% |
| Two or more races | 2 | 0.85% |