Columbus is a city in and the county seat of Bartholomew County, Indiana, United States. The population was 39,059 at the 2000 census. The current mayor is Fred Armstrong. It is located approximately 40 miles (64 km) south of Indianapolis, on the east fork of the White River. It is the state's 20th largest city. It is also the principal city of the Columbus, Indiana, metropolitan statistical area which encompasses all of Bartholomew County. Columbus is currently ranked eleventh in the U.S. on the list of safest cities per population. In 2006, Columbus won the national contest "America in Bloom. " In 2004 it was named as one of "The Ten Most Playful Towns" by Nick Jr. Family Magazine. The July 2005 edition of "GQ Magazine" named Columbus one of the "62 Reasons to Love Your Country. " Columbus is the headquarters of the engine company Cummins Inc.