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 |
|---|---|---|
| Hillsdale Lake, KS (Kansas, Northeast Kansas, US Midwest Region, USA) |
51 mi | Also known as Hillsdale Reservoir The boat glides slowly over the tops of the submerged trees. Carefully he stalks them, intent as any predator. It’s early summer on Hillsdale Lake, an… |
| Coralville Lake (East Central Iowa, Iowa, US Midwest Region, USA) |
50 mi | Also known as Coralville Reservoir Star of east-central Iowa’s recreation opportunities, Coralville Lake has led the pack for the 60 years of its existence. Originally built to control… |
| Umbagog Lake, ME/NH (Great North Woods Region, NH, Lakes & Mountains Region, ME, Maine, New Hampshire, US New England Region, USA) |
50 mi | Also known as Rangeley Lakes Umbagog Lake straddles about 11 miles of the Maine-New Hampshire border. This 7,850-acre lake lies partly in the Rangeley Lakes region of western Main… |
| Lake Matano (Indonesia) |
50 mi | Also known as Lake Matana, Danan Matano One of the world’s ten deepest lakes,* Lake Matano on the island of Sulawesi, Indonesia is also one of the most unique. The picturesque, spring-fed la… |
| Anderson Ranch Reservoir (Idaho, Southwestern Idaho, US West Region, USA) |
50 mi | One of the true gems of the Idaho reservoir system is Anderson Ranch Reservoir. Completed along the South Fork of the Boise River in 1950, this projec… |
| Mabel Lake (British Columbia, Canada, Canada) |
50 mi | Located in south central British Columbia, Mabel Lake shares its shore with Mabel Lake Provincial Park and private development. Found in the midst of… |
| Lac de Serre-Poncon (France, Provence-Alps-Cote d'Azur Region, Southern France, Southern France Region) |
50 mi | Lac de Serre-Poncon in the Provence Region of France proves that mankind can create a treasure of nature while solving a problem. Building a dam acros… |
| Lake Taylorville, IL (Central Illinois, Illinois, US Midwest Region, USA) |
50 mi | Completed in 1962 by the City of Taylorville, Illinois, Lake Taylorville is the city’s source of water and a major recreation facility. The reservoir… |
| Calaveras Lake, TX (South Texas Plains Region, TX, Texas, US Southwest Region, USA) |
50 mi | Also known as Calaveras Reservoir Created in 1969 to be a power plant cooling pond, Calaveras Reservoir has developed into one of Texas’ premiere bass lakes. The manmade jewel is 20 mi… |
| John W. Flannagan Reservoir, VA (Heart of Appalachia Region, VA, US South Region, USA, Virginia) |
50 mi | Also known as Flannagan Reservoir The John W. Flannagan Reservoir is a 1,145-acre lake located in Dickenson County in the southwest Heart of Appalachia region of Virginia. Named in hon… |
| Lake Arenal, Costa Rica (Alajuela Region, Costa Rica, Costa Rica, Guanacaste Region, Costa Rica) |
50 mi | Also known as Lago Arenal, Laguna de Arenal Lake Arenal, flanked by lush rainforest and the magnificent Arenal Volcano, is a world-class destination lake. Known for its feisty rainbow bass and i… |
| Lake Freeman, IN (Indiana, US Midwest Region, USA, West Indiana) |
50 mi | Nestled in the northern Indiana, Lake Freeman is one of two man-made lakes located just outside of Monticello. With the creation of the Lake Freeman a… |