Sugar Grove is a census-designated place (CDP) in Smyth County, Virginia, United States. The population was 610 at the 2020 census.

According to the United States Census Bureau, the CDP has a total area of 2.9&nbsp;square miles (7.6&nbsp;km<sup>2</sup>), all land.

Demographics

Sugar Grove was first listed as a census designated place in the 2000 U.S. census.