There are 2 US Post Offices in Luce County serving a total of 6,687 residents equating to 3,344 residents per post office. It's estimated that approximately 10,673 packages are handled across the 2 county post offices annually. Luce County is a county located in the Upper peninsula in the U.S. state of Michigan. As of the 2010 census, the population was 6,631, making it the second-least populous county in Michigan. The county seat is Newberry. The county was set off and organized in 1887 and named after former Michigan Governor Cyrus G. Luce. In 2002, Newberry was designated as the moose capital of Michigan by the state legislature."