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is a city in Marion County, Mississippi, United States, which was formed six years before Mississippi was admitted to statehood. Columbia was named for Columbia, South Carolina, from which many of the early settlers had come. The population was 6,603 at the 2000 census. It is the county seat of Marion County.
Columbia is located at (31.256781, -89.828779). It is located on the east bank of the Pearl River and is 81 miles south of Jackson, Mississippi and 103 miles north of New Orleans, Louisiana.
According to the United States Census Bureau, the city has a total area of 6.4 square miles (16.5 km²), all of it land.