Sharpsburg is a town in Washington County, Maryland, approximately 13 miles (20 km) south of Hagerstown. The population was 691 at the 2000 census.
During the American Civil War, the Battle of Antietam (or Battle of Sharpsburg) was fought on what is now Antietam National Battlefield, along the shores of Antietam Creek.

Geography
As of the census of 2000, there were 691 people, 286 households, and 193 families residing in the town. The population density was 3,119.1 per square mile (1,212.7/km²). There were 304 housing units at an average density of 1,372.2 per square mile (533.5/km²). The racial makeup of the town was 97.83% White, 0.43% African American, 0.58% Asian, and 1.16% from two or more races. Hispanic or Latino of any race were 0.29% of the population.
There were 286 households out of which 26.6% had children under the age of 18 living with them, 54.2% were married couples living together, 9.4% had a female householder with no husband present, and 32.5% were non-families. 26.2% of all households were made up of individuals and 8.0% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.90.
In the town the population was spread out with 21.7% under the age of 18, 8.7% from 18 to 24, 29.1% from 25 to 44, 27.6% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 103.2 males. For every 100 females age 18 and over, there were 101.9 males.
The median income for a household in the town was $41,786, and the median income for a family was $52,875. Males had a median income of $37,500 versus $22,000 for females. The per capita income for the town was $20,917. About 1.1% of families and 3.1% of the population were below the poverty line, including none of those under age 18 and 5.6% of those age 65 or over.