Antietam is a CDP located in Washington County, Maryland. Antietam has a 2026 population of 63. Antietam is currently growing at a rate of 6.78% 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 Antietam is 25.6 years: 0 years for males, and 25.6 years for females. For every 100 females there are 28.2 males.
Data after 2023 is projected based on recent change
Overall: 25.6 years
Female: 25.6 years
Male: 0 years
There are 42 adults, (10 of whom are seniors) in Antietam.
Female: 39 (78%)
Male: 11 (22%)
The racial composition of Antietam includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 50 | 100% |