In 2022, the population of Alston was 178, a 1.11% decrease year-by-year from 2021. Previously, in 2021, Alston's population was 180, an increase of 1.69% compared to a population of 177 in 2020.
The median age in Alston, GA is 65.0, as per 2021 ACS 5-Year Estimates. Of the total population, 8.72% were under the age of 15, 7.69% aged 15 to 29, 33.33% aged 30 to 64, 47.69% aged 65 to 84, and 2.56% were 85 years of age and older.