Largest lakes & reservoirs in 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 2151 articles we have published for lakes.
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Below are lakes within Compared by longest shoreline length in miles. This list does not represent all lakes in , only the 2151 lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| Lake Glenn Shoals, IL (Central Illinois, Illinois, US Midwest Region, USA) |
27 mi | Also known as Glenn Shoals Lake Lake Glenn Shoals, also known as Glenn Shoals Lake, is located near Hillsboro, Illinois. The City of Hillsboro built the lake for flood control and wa … |
| Lake Sara, IL (Central Illinois, Illinois, US Midwest Region, USA) |
27 mi | Also known as Sara Reservoir Lake Sara – a refreshing oasis in central Illinois! What does a community like Effingham Illinois do when they run out of water? They build a reservoi … |
| Christina Lake, BC (British Columbia, Canada, Canada) |
27 mi | Also known as Oasis of the Kootenays Consistently rated one of Canada’s most popular family vacation destinations, Christina Lake offers some of the warmest lake waters in Canada. Located … |
| Birch Lake, OK (Green Country, OK, Oklahoma, US Southwest Region, USA) |
27 mi | Also known as Birch Reservoir, Lake Birch Birch Lake is nestled into northeast Oklahoma’s Green Country. Fall and spring turn the prairie grasses and hardwood tree leaves around the lake into … |
| Horseshoe Reservoir, AZ (Arizona, North Central Arizona, US Southwest Region, USA) |
27 mi | Horseshoe Reservoir, in the Arizona Central Region, is a seldom-visited surprise. Horseshoe Lake, as it is often called, was created in 1946, when a d … |
| Cass Lake, MN (Minnesota, Northwest Minnesota, US Midwest Region, USA) |
27 mi | Cass Lake is, without a doubt, one of Minnesota’s natural treasures. Its scenic beauty is only surpassed by its rich history, unique features and the … |
| Lake Puckaway, WI (Central Sands Prairie Region, WI, US Midwest Region, USA, Wisconsin) |
27 mi | Also known as Puckaway Lake Lake Puckaway spans more than 5,000 acres in Green Lake County, part of Wisconsin’s Central Sands Prairie Region. The family hungering for an old-fash … |
| Lake Koshkonong, WI (Southern Savanna Region, WI, US Midwest Region, USA, Wisconsin) |
27 mi | Sprawled across southern Wisconsin, just a few miles down the Rock River from Fort Atkinson, Lake Koshkonong is a fantastic place to boat and fish. Th … |
| Lake Dillon, CO (Colorado, Northwest Colorado, US West Region, USA) |
27 mi | Also known as Dillon Reservoir Nestled in the middle of some of Summit County’s best skiing, Lake Dillon is the perfect year round getaway. With its rich history, fantastic sport fi … |
| East Lake Tohopekaliga, FL (East Central Florida, Florida, US South Region, USA) |
27 mi | Also known as East Lake Toho East Lake Tohopekaliga, often called East Lake Toho for short, is located in central Florida south of Orlando. Covering a staggering 11,968 Florida ac … |
| Lago de Ilopango (El Salvador) |
26 mi | Also known as Ilopanga Lake With nearly 18,000 acres of shimmering water, Lago de Ilopango is one of El Salvador’s best-kept secrets. Created 15 centuries ago when the caldera of … |
| Lake Marburg (Pennsylvania, Pennsylvania Dutch Country Region, US Mid-Atlantic Region, USA) |
26 mi | 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 … |