Climax is a small town in Decatur County, Georgia, United States. The town was named "Climax" because it is located at the highest point o…Climax is a small town in Decatur County, Georgia, United States. The town was named "Climax" because it is located at the highest point of the railroad between Savannah, Georgia, and the Chattahoochee River. The population was 276 in 2020.