Muscogee County is a county located on the central western border of the U.S. state of Georgia named after the Muscogee that originally inhabited the land with its western border with the state of Alabama that is formed by the Chattahoochee River. As of the 2020 census, the population was 206,922. Its county seat and only city is Columbus, with which it has been a consolidated city-county since the beginning of 1971.

Columbus is a consolidated city-county located on the west-central border of the U.S. state of Georgia. Columbus lies on the Chattahoochee River directly across from Phenix City, Alabama. It is the county seat of Muscogee County, with which it officially merged in 1970; the original merger excluded Bibb City, which joined in 2000 after dissolving its own city charter.