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Lakes / New Hampshire / Belknap County / Lake Winnisquam

Lake Winnisquam, New Hampshire

4,213.89 acres
Surface Area

Where It Sits, and How Deep It Goes

Locator - New Hampshire

ConcordPortsmouthLake WinnisquamBelknap Co.

43.54 degrees N, 71.51 degrees W - Belknap County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.

How Lake Winnisquam Stacks Up

Lakes Nearby

LakeCountyDistanceSurface Area
Opechee Bay ReservoirBelknap2.0 mi448.91 acres
Randlett PondBelknap4.1 mi32.37 acres
Pickerel PondBelknap4.4 mi77.1 acres
Saltmarsh PondBelknap4.5 mi39.54 acres
Lily PondBelknap4.6 mi44.73 acres
Cawley PondBelknap4.8 mi26.44 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID107204833
CountyBelknap
Coordinates43.5364, -71.5110

Questions About Lake Winnisquam

How Big Is Lake Winnisquam?

Lake Winnisquam covers 4,213.89 acres in Belknap County, New Hampshire.

What Is the Largest Lake in Belknap County?

Lake Winnipesaukee is the largest lake in Belknap County, at 45,654.45 acres.

Largest Lakes in New Hampshire

#LakeCountySurface AreaMax Depth
1Lake WinnipesaukeeBelknap45,654.45 acres-
2Umbagog LakeCoos7,642.5 acres-
3Squam LakeBelknap6,791.2 acres-
4Newfound LakeGrafton4,451.11 acres-
5Lake WinnisquamBelknap4,213.89 acres-

All 516 New Hampshire lakes ranked by surface area

Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 107204833). Verified October 30, 2026.