Northport is a village in Leelanau County in the U.S. state of Michigan. The population was 648 at the 2000 census. When Leelanau County was formed in 1863, Northport served as the first county seat from 1863 to 1883. Northport apartments for rent comparison page shows most up to date rent information on Northport apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.