About Lake Winnisquam

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About the lake

Lake Winnisquam is the fourth largest lake located entirely in New Hampshire. The primary inflow and outflow for the lake is the Winnipesaukee River. Winnisquam has a large northern basin and smaller southern basin.

Maps of the lake

Lake Winnisquam Subwatersheds and Catchments

Lake Information

Location: Belknap Country, New Hampshire, in the communities of Meredith, Laconia, Sanbornton, Belmont, and Tilton.

Maximum length: 10.5 miles
Maximum width: 1.5 miles
Maximum depth: 170 feet

Islands: Loon Island, Three Islands, Pot Island, Hog Island, Mohawk Island