There are 14 US Post Offices in Sheboygan County serving a total of 94,997 residents equating to 6,786 residents per post office. It's estimated that approximately 151,626 packages are handled across the 14 county post offices annually. Sheboygan County is a county in the U.S. state of Wisconsin. It is named after the Sheboygan River. As of the 2010 census, the population was 115,507. Its county seat is Sheboygan. The county was created in 1836 and organized in 1846. At the time, it was located in the Wisconsin Territory. Sheboygan County comprises the Sheboygan, WI Metropolitan Statistical Area. Part of the Holyland region is located in northwestern Sheboygan County."