Largest lakes & reservoirs in Green Country, OK 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 19 articles we have published for Green Country, OK lakes.
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Below are lakes within USA > US Southwest Region > Oklahoma > Green Country, OK > Compared by water volume. This list does not represent all lakes in Green Country, OK, only the 19 Green Country, OK lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Eufaula Lake, OK (Green Country, OK, Kiamichi Country, OK, Oklahoma, US Southwest Region, USA) |
2,300,000 ac-ft | (Also known as Lake Eufaula) Spanning 105,000 acres, Eufaula Lake covers much of McIntosh and Pittsburg Counties in eastern Oklahoma. This “Gentle Giant” is the largest lake in su … |
| Grand Lake O’the Cherokees, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
1,672,000 ac-ft | (Also known as Grand Lake Over the Cherokees) Grand Lake O’ the Cherokees stands out as a sapphire jewel tucked into the northeastern Oklahoma landscape. Created in 1940, the reservoir stretches f … |
| Tenkiller Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
677,000 ac-ft | (Also known as Lake Tenkiller, Tenkiller Ferry Lake) Tenkiller Lake is an amazing place filled with fascinating history and natural beauty in the foothills of the Ozark Mountains. There’s tons of fun to … |
| Oologah Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
552,219 ac-ft | (Also known as Oolagah Reservoir) Located in the northeast corner of Oklahoma, in the Green Country region, Oolagah Lake hides a wealth of surprises for the visitor. Located just a hal … |
| Robert S. Kerr Reservoir, OK (Green Country, OK, Kiamichi Country, OK, Oklahoma, US Southwest Region, USA) |
525,688 ac-ft | (Also known as Kerr Lake) The Robert S Kerr Reservoir, located in east-central Oklahoma, is one of the most popular recreation destinations spanning the state’s Green Country a … |
| Keystone Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
505,381 ac-ft | Keystone Lake is an impressive 26,000-acre recreational gem located in north-central Oklahoma, just 15 miles west of Tulsa. Natural beauty surrounds t … |
| Lake Fort Gibson, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
365,200 ac-ft | (Also known as Fort Gibson Reservoir or Fort Gibson Lake) Fort Gibson is a historic place in United States military history. It was significant to many military expeditions; it was a site of negotiations, int … |
| Skiatook Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
322,700 ac-ft | (Also known as Skiatook Reservoir) Scenic Skiatook Lake covers 10,500 acres in northern Oklahoma’s Green Country, just 30 minutes from Tulsa. The lake’s 160 miles of shoreline are surro … |
| Webbers Falls Reservoir, OK (Green Country, OK, Kiamichi Country, OK, Oklahoma, US Southwest Region, USA) |
170,106 ac-ft | (Also known as Webbers Falls Lake) Webbers Falls Reservoir is located in east-central Oklahoma north of Webbers Falls, a town named for seven foot-high falls on the Arkansas River. Mana … |
| Lake Eucha, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
74,237 ac-ft | Lake Eucha is a 2,860-acre reservoir with 48 miles of shoreline located in Delaware County of northeastern Oklahoma. This tourism region is called “Gr … |
| Copan Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
43,400 ac-ft | (Also known as Lake Copan, Copan Reservoir) Named after a small town situated near its banks in Oklahoma, Copan Lake was completed in 1983. Flood control, water supply, water quality control, re … |
| Spavinaw Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
31,686 ac-ft | (Also known as Lower Spavinaw Reservoir, Spavinaw Reservoir) The tiny town of Spavinaw, in Oklahoma’s Green Country Region, guards Spavinaw Lake – the principal water supply for the City of Tulsa over fifty mile … |