There are 10 US Post Offices in Henry County serving a total of 27,964 residents equating to 2,796 residents per post office. It's estimated that approximately 44,634 packages are handled across the 10 county post offices annually. Henry County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 28,215. Its county seat is Napoleon. The county was created in 1820 and later organized in 1834. It is named for Patrick Henry, the Virginian famous for his \"give me liberty or give me death\" speech."