There are 5 US Post Offices in Jackson County serving a total of 33,434 residents equating to 6,687 residents per post office. It's estimated that approximately 53,364 packages are handled across the 5 county post offices annually. Jackson County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 33,225. Its county seat is Jackson. The county is named for Andrew Jackson, a hero of the War of 1812 who was subsequently elected President of the United States. It is known as \"The Little Wales of Ohio.\" Jackson County comprises the Jackson, OH Micropolitan Statistical Area."