Warren County is a county located in the U.S. state of Georgia. As of the 2020 United States census, the population was 5,215, a decrease from 2010. The county seat is Warrenton. The county was created on December 19, 1793, and is named after General Joseph Warren, who was killed in the Battle of Bunker Hill.

Warrenton is a city in Warren County, Georgia, United States. The population was 1,744 in 2020. The city is the county seat of Warren County.