About the Lake

Lake Winnisquam is the fourth largest lake located entirely in New Hampshire. The primary inflow for the lake is the Winnipesaukee River. The primary outflow for the lake is the dam going into Silver Lake at the southern end.  Winnisquam has a large northern basin and smaller southern basin. Some of the other larger water bodies in the Winnisquam watershed include Lake Wicwas (Meredith), Lake Opechee (Laconia), as well as Pickerel Pond (Laconia) and Saltmarsh Pond (Gilford).

Maps of the Lake

Lake Winnisquam Subwatersheds and Catchments

Lake Winnisquam 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: 173 feet
Acres: 4214

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