Grand Haven is a city in the U.S. state of Michigan the county seat of Ottawa County. Grand Haven is located on the eastern shore of Lake Michigan at the mouth of the Grand River, for which it is named. As of the 2010 census, Grand Haven had a population of 10,412. It is part of the Holland-Grand Haven Metropolitan Area, which had a population of 263,801 in 2010. The city is home to the Grand Haven Memorial Airpark (3GM) and is located just north of Grand Haven Charter Township.