Largest lakes & reservoirs in Maine 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 59 articles we have published for Maine lakes.
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Below are lakes within USA > US New England Region > Maine > Compared by water volume. This list does not represent all lakes in Maine, only the 59 Maine lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Moosehead Lake, ME (Maine, Maine Highlands Region, ME, US New England Region, USA) |
4,210,000 ac-ft | Moosehead Lake, nestled in the Longfellow Mountains in the Maine Highlands Region, is the largest lake in Maine. It has an elevation of 1,023 feet, bo… |
| Mooselookmeguntic Lake, ME (Lakes & Mountains Region, ME, Maine, US New England Region, USA) |
562,000 ac-ft | (Also known as Rangeley Lakes) Mooselookmeguntic Lake is part of the Rangeley Lakes Region of Western Maine, straddling the borders of Franklin and Oxford Counties. The lake is part… |
| West Grand Lake, ME (Down East & Acadia Region, ME, Maine, US New England Region, USA) |
555,978 ac-ft | The wooden broad-beamed canoe, carrying a guide and fishermen, glides across the water of West Grand Lake, Maine, leaving a small trail in its wake. A… |
| Schoodic Lake (Maine, Maine Highlands Region, ME, US New England Region, USA) |
505,377 ac-ft | One of the large lakes in the Maine Highlands region, Schoodic Lake has managed to stay off the recreation radar of many Maine vacationers. Only an ho… |
| East Grand Lake, ME (Aroostook County, ME, Maine, US New England Region, USA) |
499,403 ac-ft | East Grand Lake is a part of the Maine’s Chiputneticook chain of lakes, along with North, Palfrey and Spednic Lakes. Lengthwise, it is cut nearly prec… |
| Sebec Lake, ME (Maine, Maine Highlands Region, ME, US New England Region, USA) |
283,337 ac-ft | (Also known as Lake Sebec) Located in central Maine’s Piscataquis River Valley, Sebec Lake is surrounded by a land of recreational opportunity. Whether you come to relax in New… |
| Great Pond, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
195,100 ac-ft | (Also known as Belgrade Lakes) Great Pond, in Maine’s Kennebec and Moose River Valleys Region, is the largest of seven lakes in the Belgrade Lakes Chain. These seven lakes are part… |
| Millinocket Lake (Maine, Maine Highlands Region, ME, US New England Region, USA) |
179,982 ac-ft | Nestled within the Maine Highlands tourism region, Millinocket Lake is known for its stunning views of Mount Katahdin, the tallest mountain peak in Ma… |
| Thompson Lake, ME (Lakes & Mountains Region, ME, Maine, US New England Region, USA) |
173,712 ac-ft | (Also known as Lake Thompson, The Heath) Just a one-hour drive northwest of Portland’s coastline, Thompson Lake lies in the Lakes & Mountains tourism region of southern Maine. Located at… |
| Cobbossee Lake, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
127,371 ac-ft | (Also known as Lake Cobbosee, Cobbosseecontee Lake) Cobbossee Lake is a treasured family vacation destination with over 62 miles of shoreline, dotted with many islands, and valued as one of the best lak… |
| Messalonskee Lake, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
110,427 ac-ft | (Also known as Snow Pond, Nine Mile Pond) The last lake in the Belgrade Lakes chain of lakes is 3691-acre Messalonskee Lake. Located in the Kennebec and Moose River Valleys Region, Messalonske… |
| China Lake (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
98,922 ac-ft | China Lake is less than 20 miles northwest of Augusta, Maine’s state capital. This natural freshwater glacial lake rests in Kennebec County in southwe… |