Horntown is a census-designated place (CDP) in Accomack County, Virginia, United States. Per the 2020 census, the population was 912.
In the mid-19th century, Horntown was a stagecoach stop on the route between Wilmington, Delaware and Eastville.
The CDP lies at an elevation of .
Horntown was first listed as a census designated place in the 2010 U.S. census.