Macon is a city located in central Georgia, US. Founded at the fall line of the Ocmulgee River, it is part of the Macon metropolitan area, and is the county seat of Bibb County. It lies near the geographic center of Georgia, approximately 85 miles south of Atlanta, hence the city's nickname as the Heart of Georgia. After voters approved the consolidation of Macon and Bibb County in 2012, Macon became Georgia's fourth-largest city, with a population of 155,547 based on 2010 Census figures for Bibb County.