Lake Macatawa is a lake in Ottawa County in the U.S. state of Michigan. The lake is about 6 miles (10 km) long with a maximum width of 1.2 miles (1.9 km) and a surface area of 1,700 acres (2.83 mi², 7.317 km²) The average depth of the lake is variable but generally less than 10 feet (3 m), excluding a navigation channel of fixed depth that crosses the lake to allow deep draft ships to access the dock at the City of Holland.