Largest lakes & reservoirs in Georgia by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume data is unknown or does not apply, so you may see fewer lakes than the total 40 articles we have published for Georgia lakes.
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Below are lakes within USA > US South Region > Georgia > Compared by water volume. This list does not represent all lakes in Georgia, only the 40 Georgia lake articles we have published on the LakeLubbers website.
Lake name ![]() |
Water vol. in ac-ft ![]() |
Lake description |
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Blue Ridge Lake, GA (Georgia, Historic High Country Region, GA, US South Region, USA) |
68,550 ac-ft | (Also known as Lake Blue Ridge, Blue Ridge Reservoir) Located some 90 miles north of Atlanta and near Blue Ridge, Georgia, Blue Ridge Lake has all the desirable qualities for lovers of outdoor excitement … |
Lake Chatuge, GA/NC (Georgia, Mountains Region, NC, North Carolina, Northeast Georgia Mountains Region, US South Region, USA) |
62,619 ac-ft | (Also known as Chatuge Lake, Chatuge Reservoir) Beautiful Lake Chatuge (pronounced “sha-toog”) spans 7200 acres and two states, stretching 13 miles from Hayesville, North Carolina, to Hiawassee, Geo … |
Lake Nottely, GA (Georgia, Northeast Georgia Mountains Region, US South Region, USA) |
61,588 ac-ft | (Also known as Nottely Reservoir) Lake Nottely is one of the best kept secrets in Georgia. The small mountain lake with deep clear water is just two hours from Atlanta, yet most water … |
Lake Tobesofkee, GA (Georgia, Historic Heartland Region, GA, US South Region, USA) |
40,250 ac-ft | Colorful sailboats dot a watery landscape as bright splashes of reds, yellows and blues weave gently through the waters at Lake Tobesofkee. Boaters en … |
Lake Rabun, GA (Georgia, Northeast Georgia Mountains Region, US South Region, USA) |
21,900 ac-ft | (Also known as Rabun Reservoir) Lake Rabun is an 834-acre serpentine shaped lake created by the Georgia Railway and Power Company (now Georgia Power) in 1915 for water storage and ev … |
Dog River Reservoir, GA (Atlanta Metro Region, GA, Georgia, US South Region, USA) |
16,695 ac-ft | Dog River Reservoir, located in the Atlanta Metro Region of Georgia, was built in 1992 and became the largest water improvement project in Douglas Cou … |
Bear Creek Reservoir, GA (Georgia, Northeast Georgia Mountains Region, US South Region, USA) |
15,344 ac-ft | (Also known as Bear Creek Lake) Bear Creek Reservoir is an infant as far as reservoirs go; it was completed and dedicated in 2002. In August 2009 anglers and boaters finally had a pl … |