There are 15 US Post Offices in Houghton County serving a total of 35,981 residents equating to 2,399 residents per post office. It's estimated that approximately 57,430 packages are handled across the 15 county post offices annually. Houghton County is a county located in the Upper peninsula in the U.S. state of Michigan. As of the 2010 census, the population was 36,628. The county seat is Houghton. The County was set off in 1843, organized in 1846 and reorganized in 1848. It is named for geologist Douglass Houghton. Houghton County is part of the Houghton, MI Micropolitan Statistical Area, which also includes Keweenaw County."