There are 14 US Post Offices in Logan County serving a total of 47,778 residents equating to 3,413 residents per post office. It's estimated that approximately 76,259 packages are handled across the 14 county post offices annually. Logan County is a county in the U.S. state of Ohio. As of the 2010 census, the population was 45,858. The county seat is Bellefontaine. The county is named for Benjamin Logan, who fought Native Americans in the area. Logan County comprises the Bellefontaine, OH Micropolitan Statistical Area, which is also included in the Columbus-Marion-Zanesville, OH Combined Statistical Area."