Macon (), officially Macon–Bibb County, is a consolidated city-county in the U.S. state of Georgia. Macon lies near the state's geographic center, about 85 miles (137 km) southeast of Atlanta—hence the city's nickname, "The Heart of Georgia". Located near the fall line of the Ocmulgee River, Macon had a 2019 estimated population of 153,159. It is the principal city of the Macon Metropolitan Statistical Area, which had an estimated population of 228,914 in 2017. Macon is also the largest city in the Macon–Warner Robins Combined Statistical Area (CSA), a larger trading area with an estimated 420,693 residents in 2017; the CSA abuts the Atlanta metropolitan area just to the north. In a 2012 referendum, voters approved the consolidation of the governments of the City of Macon and Bibb County, and Macon became Georgia's fourth-largest city (just after Columbus). The two governments officially merged on January 1, 2014.Macon is served by three interstate highways: I-16 (connecting the city to Savannah and coastal Georgia), I-75 (connecting the city with Atlanta to the north and Valdosta to the south), and I-475 (a city bypass highway). The city has several institutions of higher education, as well as numerous museums and tourism sites. The area is served by Middle Georgia Regional Airport and Herbert Smart Downtown Airport. The mayor is Lester Miller.

Greene County is a county located in the east central portion of the U.S. state of Georgia. As of the 2010 census, the population was 15,994. The county seat is Greensboro. The county was created on February 3, 1786 and is named for Nathanael Greene, an American Revolutionary War major general.

Madison is a city in Morgan County, Georgia, United States. It is part of the Atlanta-Athens-Clarke-Sandy Springs Combined Statistical Area. The population was 3,979 at the 2010 census. The city is the county seat of Morgan County and the site of the Morgan County Courthouse. The Historic District of Madison is one of the largest in the state. Many of the nearly 100 antebellum homes have been carefully restored. Bonar Hall is one of the first of the grand-style Federal homes built in Madison during the town's cotton-boom heyday from 1840 to 1860. Budget Travel magazine voted Madison as one of the world's 16 most picturesque villages.Madison is featured on Georgia's Antebellum Trail, and is designated as one of the state's Historic Heartland cities.

Warner Robins (typically ) is a city in the U.S. state of Georgia, located in Houston and Peach counties in the central part of the state. It is currently Georgia's eleventh-largest incorporated city, with a census population of 80,308 in 2020.The city is the main component of the Warner Robins Metropolitan Statistical Area, including the entirety of Houston, Peach, and Pulaski counties, which had a census population of 201,469 in 2020; it, in turn, is a component of a larger trade area, the Macon–Warner Robins–Fort Valley Combined Statistical Area, with an estimated 2018 population of 423,572. Robins Air Force Base, a major U.S. Air Force maintenance and logistics complex that was founded as the Warner Robins Air Depot in 1942, is located just east of the city limits; the base's expansion and the suburbanization of nearby Macon have led to the city's rapid growth in the post-World War II era.