There are 4 US Post Offices in Schoolcraft County serving a total of 8,329 residents equating to 2,082 residents per post office. It's estimated that approximately 13,294 packages are handled across the 4 county post offices annually. Schoolcraft County is a county located in the Upper Peninsula of the U.S. state of Michigan. As of the 2010 census, the population was 8,485. The county seat is Manistique, which lies along the northern shore of Lake Michigan. The county is named in honor of Henry Schoolcraft, who explored the area with the expedition of Lewis Cass. The county was founded in 1843 and organized in 1876. The county is largely rural and forested, with much of the western portion of the county located within Hiawatha National Forest."