is a town in Pike County, Mississippi, USA. The population was 1,428 at the 2000 census. It is part of the McComb, Mississippi Micropolitan Statistical Area.
The town originated as a railroad town and was named Summit because it was thought to be the highest point on the Illinois Central Railroad between New Orleans, Louisiana and Jackson, Mississippi — nearby Brookhaven actually holds the title.
According to the United States Census Bureau, the town has a total area of 1.7 square miles (4.4 km²), of which, 1.7 square miles (4.4 km²) of it is land and none of it is covered by water.