Rogers City is a city in the U.S. state of Michigan. It is the county seat of and largest city in Presque Isle County. The city had a population of 2,850 at the 2020 census, a slight increase from 2,827 at the 2010 census. The city is located in the northeast of Michigan's Lower Peninsula, along the shore of Lake Huron. Within the city's limits is the world's largest open-pit limestone quarry, the Port of Calcite. The port is one of the largest shipping ports on the Great Lakes.