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.