Glen Allan is a CDP located in Washington County, Mississippi. Glen Allan has a 2026 population of 322. Glen Allan is currently growing at a rate of 6.62% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median age in Glen Allan is 18 years: 20.9 years for males, and 13.6 years for females. For every 100 females there are 105.9 males.
Data after 2023 is projected based on recent change
Overall: 18 years
Female: 13.6 years
Male: 20.9 years
There are 174 adults, (24 of whom are seniors) in Glen Allan.
Female: 170 (48.6%)
Male: 180 (51.4%)
The racial composition of Glen Allan includes 73.14% other race, 26.86% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Other race | 256 | 73.14% |
| White | 94 | 26.86% |