Round Hill is located at 39°8′1″N 77°46′13″W (39.133625, −77.770217).

According to the United States Census Bureau, the town has a total area of 0.2 square miles (0.52 km²), all of it land.
Round Hill is located at 39°8′1″N 77°46′13″W (39.133625, −77.770217).
According to the United States Census Bureau, the town has a total area of 0.2 square miles (0.52 km²), all of it land.
Round Hill, Loudoun County, Virginia