Deepest lakes & reservoirs in Pennsylvania 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 40 articles we have published for Pennsylvania lakes.
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Below are lakes within USA > US Mid-Atlantic Region > Pennsylvania > Compared by maximum depth in feet. This list does not represent all lakes in Pennsylvania, only the 40 Pennsylvania lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Lake Erie (Canada, Chautauqua-Allegheny Region, NY, Great Lakes Region, PA, Great Lakes of North America, Greater Niagara Region, NY, Michigan, New York, Northeast Ohio, Northwest Ohio, Ohio, Ontario, Canada, Pennsylvania, Southeast Michigan, US Mid-Atlantic Region, US Midwest Region, USA) |
210 ft | Lake Erie, one of the Great Lakes of North America, straddles the borders of Ohio, Pennsylvania, New York, Michigan, and the Canadian province of Onta … |
| Cowanesque Lake, PA (Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
200 ft | Peacefully nestled between forested ridges in north central Pennsylvania lies Cowanesque Lake. Located near the New York state line, the name Cowanesq … |
| Raystown Lake, PA (Allegheny Mountains & Valleys Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
200 ft | Raystown Lake, at 8,300 acres, is the largest lake located entirely within Pennsylvania’s borders. The lake is nestled in the southern Allegheny Mount … |
| East Branch Clarion River Lake, PA (Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
147 ft | Also known as East Branch Lake, East Branch Reservoir East Branch Clarion River Lake, also known as East Branch Lake, is aptly named: it was created by the United States Army Corps of Engineers in 1952 by … |
| Allegheny Reservoir, NY/PA (Chautauqua-Allegheny Region, NY, New York, Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
132 ft | Also known as Kinzua Dam Lake, Kinzua Lake, Lake Kinzua Flowing across tree-covered hills in northwestern Pennsylvania and southwestern New York, the Allegheny Reservoir’s 12,080 acres provide an open invit … |
| Beltzville Lake, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
126 ft | Also known as Beltzville Reservoir The Pennsylvania Pocono Mountains are spectacular for many reasons, and Beltzville Lake is one of them. Located in the southern foothills of these fam … |
| Crystal Lake, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
120 ft | Crystal Lake is a beautiful 45-acre lake tucked away in the Endless Mountains of northeastern Pennsylvania. This private, spring-fed lake offers year … |
| Lake Marburg (Pennsylvania, Pennsylvania Dutch Country Region, US Mid-Atlantic Region, USA) |
110 ft | Also known as Codorus Lake Pennsylvania Dutch Country near Hanover, Pennsylvania holds a spectacular recreational resource called Lake Marburg. This 1,300-acre reservoir combine … |
| Lake Ariel, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
100 ft | For over 150 years people have been making their way to the Pocono Mountains of northeastern Pennsylvania to enjoy the beautiful waters of Lake Ariel. … |
| Harveys Lake, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
96 ft | Also known as Harvey's Lake With a surface area of 658 acres, Harveys Lake is Pennsylvania’s largest natural lake by total volume of water. Located in the Northeastern Mountain R … |
| Lake Nockamixon, PA (Pennsylvania, Philadelphia & Countryside Region, PA, US Mid-Atlantic Region, USA) |
90 ft | Lake Nockamixon, located in the 5,283 acre Nockamixon State Park, is located in southeastern Pennsylvania’s Bucks County. The 1,450 acre reservoir is … |
| Treasure Lake (Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
70 ft | Also known as Lake Rene The Pennsylvania Wilds Region is not a place you would expect to find a lake called Treasure Lake. Neither would you expect Bimini Lake or Trinidad Be … |
