Largest lakes & reservoirs in Massachusetts 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 Massachusetts lakes.
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Below are lakes within USA > US New England Region > Massachusetts > Compared by water volume. This list does not represent all lakes in Massachusetts, only the 19 Massachusetts lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Quabbin Reservoir (Massachusetts, US New England Region, USA, Western Massachusetts) |
1,264,380 ac-ft | One of the country’s largest man-made public water supplies, Quabbin Reservoir dominates the landscape in Western Massachusetts. Supplying much of the … |
| Lake Quinsigamond, MA (Central Massachusetts, Massachusetts, US New England Region, USA) |
52,327 ac-ft | Worcester, Massachusetts is well known for many things: John Adams taught school here before becoming the second President of the United States. Songw … |
| Colebrook River Lake, CT/MA (Connecticut, Litchfield Hills Region, CT, Massachusetts, US New England Region, USA, Western Massachusetts) |
43,778 ac-ft | (Also known as Colebrook River Reservoir) With over 800 acres of boating and fishing waters, with no residential development, Colebrook River Lake – straddling the Connecticut and Massachusett … |
| Otis Reservoir, MA (Massachusetts, US New England Region, USA, Western Massachusetts) |
17,188 ac-ft | (Also known as Otis Lake) She sits by herself on the dock at Otis Reservoir; the coffee steaming in her mug mirrors the mist coming off the water of the lake. Her husband left … |
| Lake Cochichewick (Massachusetts, Northeastern & Merrimack Valley Region, MA, US New England Region, USA) |
13,196 ac-ft | (Also known as The Great Pond) One of the earliest of Massachusetts’ iconic Great Ponds, beautiful Lake Cochichewick anchors the Town of North Andover to both its past and its futur … |
| Lake Monomonac (Central Massachusetts, Massachusetts, Monadnock Region, NH, New Hampshire, US New England Region, USA) |
12,844 ac-ft | The wind fills the sails, pushing the sailboats across Lake Monomonac. A bewitching combination of pristine white sail cloth and billowing bright colo … |
| Ashmere Lake (Massachusetts, US New England Region, USA, Western Massachusetts) |
2,076 ac-ft | Ashmere Lake is a small, quiet lake tucked away in western Massachusetts. The 217-acre lake is surrounded by beautiful rural countryside in the towns … |
| Crystal Lake Boston (Greater Boston Region, MA, Massachusetts, US New England Region, USA) |
436 ac-ft | (Also known as Wiswall Pond, Silver Lake, Baptist Pond) Crystal Lake has a long history of being the ‘town lake’ in Newton, Massachusetts. Located in the Greater Boston area, this small natural lake is one … |