Mackinac County, Michigan: History
Michilimackinac County was created on October 26, 1818, by proclamation of territorial governor Lewis Cass. The county originally encompassed the Lower Peninsula of Michigan north of Macomb County and almost the entire present Upper Peninsula. As later counties were settled and organized, they were divided from this territory.
On April 1, 1840, areas in the Lower Peninsula were laid off to create 30 new counties. By 1841, the County of Michilimackinac was confined to the Upper Peninsula and its nearby islands, bordering Chippewa and Menominee counties.
On March 9, 1843, Michigan further divided the Upper Peninsula into six counties. At this time, the County of Michilimackinac more closely resembled its modern configuration, including only a portion of the Upper Peninsula closest to the Straits of Mackinac, plus several islands.
At the time of founding, the county seat was the community of Michilimackinac Island on Michilimackinac Island, later known as Mackinac Island, Michigan. This has been an important center for fur trading before the 1830s, when European demand declined. The county was organized in 1849 as Mackinac County. In 1882 the county seat was moved from Mackinac Island to St. Ignace, Michigan, which had been founded as a French Jesuit mission village during the colonial years.
Mackinac County is home to the Mackinac Bands of Chippewa and Ottawa Indians, a Native American state recognized tribe located in St. Ignace.