There are 8 US Post Offices in Allen County serving a total of 75,036 residents equating to 9,380 residents per post office. It's estimated that approximately 119,766 packages are handled across the 8 county post offices annually. Allen County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 106,331. The county seat is Lima. The county was created in 1820 and later organized in 1831. The county is named for Colonel John Allen, who was killed leading his men at the Battle of Frenchtown, during the War of 1812. It has also been claimed the county was named for Revolutionary War soldier Ethan Allen, but the weight of the evidence in favor of John Allen led the General Assembly to declare in 1976 that the county was named for him. Allen County comprises the Lima, OH Metropolitan Statistical Area, which is also included in the Lima\u2013Van Wert\u2013Wapakoneta Combined Statistical Area."