Largest lakes & reservoirs in Maine 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 59 articles we have published for Maine lakes.
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Below are lakes within USA > US New England Region > Maine > Compared by longest shoreline length in miles. This list does not represent all lakes in Maine, only the 59 Maine lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| East Grand Lake, ME (Aroostook County, ME, Maine, US New England Region, USA) |
365 mi | East Grand Lake is a part of the Maine’s Chiputneticook chain of lakes, along with North, Palfrey and Spednic Lakes. Lengthwise, it is cut nearly prec… |
| Moosehead Lake, ME (Maine, Maine Highlands Region, ME, US New England Region, USA) |
281 mi | Moosehead Lake, nestled in the Longfellow Mountains in the Maine Highlands Region, is the largest lake in Maine. It has an elevation of 1,023 feet, bo… |
| Spednic Lake (Aroostook County, ME, Canada, Down East & Acadia Region, ME, Maine, New Brunswick, Canada, US New England Region, USA) |
106 mi | A lone canoe glides through the water of Spednic Lake with only a pair of loons for company. Unknowingly dancing between two countries, the canoeist s… |
| Sebago Lake, ME (Lakes & Mountains Region, ME, Maine, US New England Region, USA) |
98 mi | Sebago Lake is the deepest and second largest lake in Maine. It stretches 12 miles long, boasts a 98 mile shoreline, covers 45 square miles, reaches a… |
| Brassua Lake (Maine, Maine Highlands Region, ME, US New England Region, USA) |
74 mi | Also known as Little Brassua Lake-historic Sprawling across almost 9,000 acres of the Maine Highlands Region, Brassua Lake is actually little known. The large reservoir was created in 1925 when… |
| Cobbossee Lake, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
63 mi | Also known as Lake Cobbosee, Cobbosseecontee Lake Cobbossee Lake is a treasured family vacation destination with over 62 miles of shoreline, dotted with many islands, and valued as one of the best lak… |
| Rangeley Lakes (Lakes & Mountains Region, ME, Maine, US New England Region, USA) |
63 mi | Also known as Umbagog Lake, Aziscohos Lake, Mooselookmeguntic Lake,Rangeley Lake, Upper Richardson Lake, Lower Richardson Lake, Cupsuptic Lake, Aziscoos Lake (historic), Sawyer Lake (historic) Nothing represents the outdoor largesse of Maine’s Lakes and Mountains region better than the six pristine Rangeley Lakes. These natural lakes sprawl… |
| Mooselookmeguntic Lake, ME (Lakes & Mountains Region, ME, Maine, US New England Region, USA) |
57 mi | Also known as Rangeley Lakes Mooselookmeguntic Lake is part of the Rangeley Lakes Region of Western Maine, straddling the borders of Franklin and Oxford Counties. The lake is part… |
| Sebec Lake, ME (Maine, Maine Highlands Region, ME, US New England Region, USA) |
53 mi | Also known as Lake Sebec Located in central Maine’s Piscataquis River Valley, Sebec Lake is surrounded by a land of recreational opportunity. Whether you come to relax in New… |
| 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… |
| West Grand Lake, ME (Down East & Acadia Region, ME, Maine, US New England Region, USA) |
49 mi | The wooden broad-beamed canoe, carrying a guide and fishermen, glides across the water of West Grand Lake, Maine, leaving a small trail in its wake. A… |
| Great Pond, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
46 mi | Also known as Belgrade Lakes Great Pond, in Maine’s Kennebec and Moose River Valleys Region, is the largest of seven lakes in the Belgrade Lakes Chain. These seven lakes are part… |