population of bartholomew county indiana
- Bartholomew County, Indiana. Bartholomew County is a county located in the U.S. state of Indiana. As of 2015, the population was 81,162. The county seat is Columbus. The county was determined by the U.S. Census Bureau to include the mean center of U.S. population in 1900. Bartholomew County is part of the Columbus, Indiana Metropolitan Statistical Area