Saugatuck is a city in Allegan County in the U.S. state of Michigan. The population was 925 at the 2010 census. The city is within Saugatuck Township, but is administratively autonomous.Originally a lumber town and port, Saugatuck, along with the adjacent city of Douglas, became a noted art colony and tourist destination in the Arts and Crafts movement of the late 19th century.