Richmond County is located in the state of Georgia in the U.S. As of the 2020 census, the population was 206,607. It is one of the original counties of Georgia, created on February 5, 1777. Following an election in 1995, Augusta consolidated governments with Richmond County. The consolidated entity is known as Augusta-Richmond County, or simply Augusta. Exempt are the cities of Hephzibah and Blythe, in southern Richmond County, which voted to remain separate. Richmond County is included in the Augusta-Richmond County, GA-SC metropolitan statistical area.

Augusta is a consolidated city-county on the central eastern border of the U.S. state of Georgia. The city lies directly across the Savannah River from North Augusta, South Carolina at the head of its navigable portion. Georgia's third most populous city, Augusta is located in the Fall Line section of the state.