Columbus, IN. Online Offers. Columbus ( /kÉlÊmbÉs/) is a city in and the county seat of Bartholomew County, Indiana, United States. The population was 44,061 at the 2010 census, and the current mayor is Fred Armstrong.
In 1951, the U.S. Army Corps of Engineers began construction of the New Orleans Mississippi River Floodwall under the Dumaine Street Wharf. Between 1973 and 1992, 15 major sections were built at a cost of $30 million.
Named for the Neversink River, the longest tributary of the Delaware River, the city of 2000 was one of the unlucky Catskill towns flooded in the 1950s to create reservoirs that would provide water to New York City. Luckily, the town relocated in the 1950s shortly after its old Main Street was sunk for good.