Largest lakes & reservoirs in Ohio by shoreline length
The length of the exterior shoreline around a lake is measured at the lake’s normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal. A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.When known, the shoreline miles that we report in our statistics include only the lake’s exterior shoreline, and exclude the shorelines of islands located within a lake’s boundaries. In lakes with many islands, those islands’ combined shorelines may exceed a lake’s exterior shoreline.
You can find many of the world’s longest-shoreline lakes on LakeLubbers. Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 25 articles we have published for Ohio lakes.
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Below are lakes within USA > US Midwest Region > Ohio > Compared by longest shoreline length in miles. This list does not represent all lakes in Ohio, only the 25 Ohio lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
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) |
871 mi | 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 … |
| Grand Lake St. Marys, OH (Northwest Ohio, Ohio, US Midwest Region, USA) |
74 mi | Also known as Grand Lake With its sail billowing in the wind, the sailboat glides in front of the lighthouse. It’s a rare scene for an inland lake, but Grand Lake St. Marys is … |
| Pymatuning Lake, PA/OH (Great Lakes Region, PA, Northeast Ohio, Ohio, Pennsylvania, US Mid-Atlantic Region, US Midwest Region, USA) |
70 mi | Also known as Pymatuning Reservoir Pymatuning Lake, located in northwestern Pennsylvania and spilling over into northeastern Ohio, is a lake of superlatives: Clocking in at 17,088 acres … |
| Salt Fork Lake, OH (Ohio, Southeast Ohio, US Midwest Region, USA) |
64 mi | Salt Fork Lake is a 3,000-acre recreational gem nestled in the foothills of the Appalachian Mountains in Guernsey County in Ohio’s Southeast tourism r … |
| Senecaville Lake, OH (Ohio, Southeast Ohio, US Midwest Region, USA) |
48 mi | Also known as Seneca Lake Senecaville Lake, also known as Seneca Lake, is the third largest inland lake in Ohio with 3,550 acres. Senecaville Lake is conveniently located in so … |
| Tappan Lake (Northeast Ohio, Ohio, US Midwest Region, USA) |
47 mi | Also known as Tappan Reservoir Tappan Lake is a 2,350-acre reservoir in Northeast Ohio, one of a series of lakes managed by the Muskingum Watershed Conservancy District. The U.S. Ar … |
| Caesar Creek Lake, OH (Ohio, Southwest Ohio, US Midwest Region, USA) |
40 mi | Caesar Creek Lake, located in southwestern Ohio, offers vacationers 2830 acres of blue waters and over 40 miles of shoreline. Created in the 1970’s wh … |
| West Branch Lake, OH (Northeast Ohio, Ohio, US Midwest Region, USA) |
40 mi | Also known as Michael J. Kirwan Reservoir West Branch Lake is set in Northeast Ohio’s glaciated land, where large boulders of ice left marshy wetlands in their recession thousands of years ago … |
| Mosquito Creek Lake, OH (Northeast Ohio, Ohio, US Midwest Region, USA) |
40 mi | Also known as Mosquito Creek Reservoir, Mosquito Lake Mosquito Creek Lake is one of the highlights of Northeast Ohio. At 7850 acres, it is the second largest inland lake in the state. Also known as Mosqui … |
| Clendening Lake (Northeast Ohio, Ohio, US Midwest Region, USA) |
36 mi | Also known as Clendening Reservoir The call of the wild permeates the area surrounding Clendening Lake. The meandering reservoir stretches over 10 miles along Brushy Creek and is enclos … |
| Delaware Lake, OH (Central Ohio, Ohio, US Midwest Region, USA) |
35 mi | Also known as Lake Delaware Delaware Lake is a central Ohio reservoir designed and constructed by the Huntington District of the U.S. Army Corps of Engineers. The Corps’ Ohio Riv … |
| Buckeye Lake, OH (Central Ohio, Ohio, US Midwest Region, USA) |
32 mi | Once used for canal transportation, now a year round adventure land, Buckeye Lake in Ohio is a destination worthy of investigation. Located just a sho … |