Gilbert is a town in Lexington County, South Carolina, United States. The population was 500 at the 2000 census. It is part of the Columbia, South Carolina Metropolitan Statistical Area.
Gilbert is located at 33°55′32″N 81°23′40″W / 33.92556°N 81.39444°W / 33.92556; -81.39444 (33.925492, -81.394531).
According to the United States Census Bureau, the town has a total area of 2.3 square miles (6.0 km²), of which, 2.3 square miles (5.9 km²) of it is land and 0.1 square miles (0.2 km²) of it (2.58%) is water.