Deepest lakes & reservoirs in Connecticut by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, 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 maximum depth in feet. This list does not represent all lakes in Connecticut, only the 30 Connecticut lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Colebrook River Lake, CT/MA (Connecticut, Litchfield Hills Region, CT, Massachusetts, US New England Region, USA, Western Massachusetts) |
136 ft | Also known as Colebrook River Reservoir With over 800 acres of boating and fishing waters, with no residential development, Colebrook River Lake – straddling the Connecticut and Massachusett… |
| Saugatuck Reservoir, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
110 ft | Saugatuck Reservoir is an outdoor person’s wonderland with great fishing, wonderful hiking, a unique landscape and a plethora of woodland and marsh bi… |
| Lake Wononscopomuc (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
106 ft | Also known as Wononscopomuc Lake, Wononskopomuc Lake, Lake Wononskopomuc, Lakeville Lake Lake Wononscopomuc is one of six lakes and ponds found in the town of Salisbury in far northwest Connecticut. Offering a lakeside retreat only 90 mile… |
| Lake Lillinonah, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
90 ft | With more than 1500 acres of boating and fishing waters, bordered by a wide variety of shoreline vistas, Lake Lillinonah in southwestern Connecticut i… |
| Candlewood Lake, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
89 ft | Candlewood Lake is Connecticut’s largest man-made reservoir. The City of Danbury and four other towns (Brookfield, New Milford, Sherman and New Fairfi… |
| Lake Zoar, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
72 ft | Also known as Zoar Lake With more than 900 acres of boating and fishing waters bordered by shoreline vistas, southwestern Connecticut’s Lake Zoar is a great outdoor destinati… |
| West Hill Lake (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
63 ft | 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… |
| Highland Lake, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
63 ft | Highland Lake is a 444-acre lake nestled in the Berkshire Mountains of Litchfield County near the city of Winsted, Connecticut. Known as a resort lake… |
| Beach Pond, CT/RI (Connecticut, Mystic Country Region, CT, Rhode Island, US New England Region, USA, Washington County, RI) |
60 ft | Beach Pond’s 459 acres span the south-central Rhode Island-Connecticut state line near the communities of Exeter and Voluntown — the wooded shoreline… |
| Crystal Lake, CT (Connecticut, River Valley Region, CT, US New England Region, USA) |
50 ft | Crystal Lake lies in Connecticut’s River Valley. A dynamic region of cities and countryside, visitors may experience a fusion of entertainment, cultur… |
| Lake Terramuggus, CT (Connecticut, River Valley Region, CT, US New England Region, USA) |
43 ft | Located in the quiet rural area of Marlborough, Connecticut, Lake Terramuggus is proclaimed to be an undiscovered gem. The serenity of this lake offer… |
| Lake Waramaug, CT (Connecticut, Litchfield Hills Region, CT, US New England Region, USA) |
43 ft | Lake Waramaug is over four miles long, and in the Housatonic River Drainage Basin offering wonderful outdoor recreation and fine fishing for residents… |