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Lakes / New Hampshire / Grafton County / Ogontz Lake

Ogontz Lake, New Hampshire

74.38 acres
Surface Area

Where It Sits, and How Deep It Goes

Locator - New Hampshire

ConcordPortsmouthOgontz LakeGrafton Co.

44.27 degrees N, 71.91 degrees W - Grafton 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 Ogontz Lake Stacks Up

Lakes Nearby

LakeCountyDistanceSurface Area
Dodge PondGrafton1.4 mi33.95 acres
Partridge LakeGrafton3.1 mi99.09 acres
Pearl LakeGrafton4.9 mi61.53 acres
Streeter PondGrafton5.4 mi54.61 acres
Connecticut River ReservoirGrafton6.2 mi540.82 acres
Moore ReservoirGrafton7.8 mi3,280.32 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID87402821
CountyGrafton
Coordinates44.2655, -71.9050

Questions About Ogontz Lake

How Big Is Ogontz Lake?

Ogontz Lake covers 74.38 acres in Grafton County, New Hampshire.

What Is the Largest Lake in Grafton County?

Newfound Lake is the largest lake in Grafton County, at 4,451.11 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 87402821). Verified October 30, 2026.