Newfound Lake is located in Grafton County, New Hampshire, United States. It is situated in the Lakes Region of central New Hampshire, in the towns of Alexandria, Bridgewater, Bristol, and Hebron. Its area of places it behind only Lake Winnipesaukee and Squam Lake among lakes located entirely within New Hampshire, and fourth in the state overall, when Umbagog Lake on the Maine border is included. Newfound Lake is refreshed twice a year by eight underground springs and has of shore line. The lake is about wide and long. The deepest point is . Major tributaries include the Fowler River and the Cockermouth River. Its outlet is the Newfound River, flowing through Bristol village into the Pemigewasset River. The lake volume is 98 billion gallons of water.