Bartow County is located in the northwestern part of the U.S. state of Georgia. As of the 2020 census, the population was 108,901, up from 100,157 in 2010. The county seat is Cartersville. Traditionally considered part of northwest Georgia, Bartow County is now included in the Atlanta metropolitan area, mainly in the southeastern part near Cartersville, which has become an exurb more than 40 miles from downtown Atlanta on I-75.