Lake Winnipesaukee is the largest lake in the U.S. state of New Hampshire, located in the Lakes Region at the foothills of the White Mountains. It is approximately 21 miles (34 km) long (northwest-southeast) and from 1 to 9 miles (1.6 to 14.5 km) wide (northeast-southwest), covering 69 square miles (179 km2)—71 square miles (184 km2) when Paugus Bay is included—with a maximum depth of 180 feet (55 m). The center area of the lake is called The Broads.
The lake contains at least 264 islands, half of which are less than 0.25 acres (0.10 ha) in size, and is indented by several peninsulas, yielding a total shoreline of approximately 288 miles (463 km). The driving distance around the lake is 63 miles (101 km). It is 504 feet (154 m) above sea level. Winnipesaukee is the third-largest lake in New England after Lake Champlain and Moosehead Lake.
Outflow is regulated by the Lakeport Dam in Lakeport, New Hampshire, on the Winnipesaukee River.
