Largest lakes & reservoirs in Connecticut 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 30 articles we have published for Connecticut lakes.
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Below are lakes within USA > US New England Region > Connecticut > Compared by longest shoreline length in miles. This list does not represent all lakes in Connecticut, only the 30 Connecticut lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| Lake Lillinonah, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
45 mi | With more than 1500 acres of boating and fishing waters, bordered by a wide variety of shoreline vistas, Lake Lillinonah in southwestern Connecticut i … |
| Saugatuck Reservoir, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
13 mi | Saugatuck Reservoir is an outdoor person’s wonderland with great fishing, wonderful hiking, a unique landscape and a plethora of woodland and marsh bi … |
| Bantam Lake, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
10 mi | Bantam Lake is an outdoor wonderland with great fishing, an almost completely forested shoreline and White Memorial Foundation – a nationally known co … |
| Coventry Lake, CT (Connecticut, Mystic Country Region, CT, US New England Region, USA) |
7 mi | Also known as Wangumbaug Lake, Lake Wangumbaug In Connecticut’s Mystic Country, farmland, forests, lakes and small quaint villages combine with coastal adventures and exciting cities to create an a … |
| Lake Williams (Connecticut, Mystic Country Region, CT, US New England Region, USA) |
6 mi | Also known as Williams Pond One of the lesser known water destinations in Connecticut’s Mystic Country is beautiful Lake Williams. Although the lake is mostly private, a hand-car … |
| Beach Pond, CT/RI (Connecticut, Mystic Country Region, CT, Rhode Island, US New England Region, USA, Washington County, RI) |
6 mi | Beach Pond’s 459 acres span the south-central Rhode Island-Connecticut state line near the communities of Exeter and Voluntown — the wooded shoreline … |
| Lake Pocotopaug, CT (Connecticut, River Valley Region, CT, US New England Region, USA) |
5 mi | Also known as Pocotopaug Lake Lake Pocotopaug in Connecticut’s River Valley Region is relatively unknown to most lake explorers. The 516-acre lake is entirely private and a delight … |
| Lake Hayward, CT (Connecticut, River Valley Region, CT, US New England Region, USA) |
4 mi | He unloads the station wagon carrying carefully packed boxes to his wife in the house. The kids are already next door reacquainting themselves with th … |
| Andover Lake, CT (Connecticut, River Valley Region, CT, US New England Region, USA) |
4 mi | Located in the town of Andover in northeastern Connecticut, Andover Lake provides a wonderful sense of community that only private lakes can offer. An … |
| West Hill Lake (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
3 mi | Also known as West Hill Pond West Hill Lake, in Connecticut’s Litchfield Hills Region, is the quintessential New England lake. Perhaps more commonly called West Hill Pond, West Hi … |
| Beseck Lake, CT (Connecticut, Greater New Haven Region, CT, US New England Region, USA) |
3 mi | Also known as Lake Beseck Found in Connecticut’s beautiful Greater New Haven Region, Beseck Lake is a quiet residential lake. Ideally located in Middlefield near the center of … |
| Amston Lake (Connecticut, Mystic Country Region, CT, US New England Region, USA) |
3 mi | Amston Lake is between the towns of Hebron and Lebanon, near the border of Connecticut’s Mystic Country and River Valley tourism regions. Jurisdiction … |