Deepest lakes & reservoirs in by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 2151 articles we have published for lakes.
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Below are lakes within Compared by maximum depth in feet. This list does not represent all lakes in , only the 2151 lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Llyn Clywedog (Mid Wales Region, UK, United Kingdom, Wales, United Kingdom) |
217 ft | Also known as Lake Clywedog, Clywedog Reservoir The Clywedog Reservoir, or Llyn (Lake) Clywedog, was formed by damming the River Clywedog, a tributary of the River Severn, in 1967. The concrete butt … |
| Lake Diefenbaker (Canada, Saskatchewan, Canada) |
217 ft | Also known as Diefenbaker Lake Lake Diefenbaker, the largest reservoir in southern Saskatchewan, is developing a reputation as a favorite vacationland for visitors from all over Can … |
| Lake Keitele, Finland (Finland, Lakeland Region, Finland) |
217 ft | Lake Keitele spans an impressive 122,000 acres in Central Finland’s Lakeland District. The lake is connected to Lake Paijanne (271,800 acres) via the … |
| Strangford Lough (Down Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
216 ft | Also known as Strangford Lake, Loch Cuan, Strangford Strangford Lough (Lake) is a 37,066-acre inland, tidal, salt water lake off the east coast of County Down in Northern Ireland. Separated from the Iris … |
| Ashley Lake (Glacier Country, MT, Montana, US West Region, USA) |
215 ft | Also known as Ashley Lake Ashley Lake is a special treat in Montana’s Glacier Country. Several miles of gravel road are required to get to the lake’s shore, so it is never over … |
| Lake Washington, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
214 ft | Lake Washington has the distinction of being the second largest natural lake in the state of Washington. This glacial lake is long and narrow, a “ribb … |
| Buntzen Lake (British Columbia, Canada, Canada) |
213 ft | Also known as Trout Lake, Lake Beautiful-historic Nestled beneath lush green mountains near the British Columbia coastline, beautiful Buntzen Lake offers a wealth of hiking enjoyment to recreation see … |
| Pavilion Lake (British Columbia, Canada, Canada) |
213 ft | Something’s going on at Pavilion Lake in British Columbia’s Cariboo region . . .something besides the trout fishing, the camping, hiking, canoeing and … |
| Lake Santeetlah, NC (Mountains Region, NC, North Carolina, US South Region, USA) |
213 ft | Also known as Santeetlah Reservoir or Santeetlah Lake High up in the Appalachian Mountains in North Carolina’s largely wild, westerly Graham County is Lake Santeetlah. Owned by Brookfield Renewable Energy … |
| Lake Annecy, France (France, Rhone-Alps Region, Southern France, Southern France Region) |
212 ft | Also known as Lac d'Annecy Paragliders sail like bright balloons over the clean mountain water of Lake Annecy, while hikers standing on the massive rock of Roc de Che`re look on … |
| Lake of the Woods, MN / Canada (Canada, Manitoba, Canada, Minnesota, Northwest Minnesota, Ontario, Canada, US Midwest Region, USA) |
210 ft | Spanning the border from Minnesota into the Canadian provinces of Ontario and Manitoba, Lake of the Woods is an enormous body of water over 68 miles l … |
| Beaver Lake, AR (Arkansas, Ozarks Region, AR, US South Region, USA) |
210 ft | Majestic limestone bluffs, hidden natural caves, and beautiful crystal clear water combine to make Beaver Lake an outdoor enthusiast’s playground. Add … |