Morgan County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 15,054, making it the fourth-least populous county in Ohio. Its county seat is McConnelsville. The county was created in 1817 and later organized in 1819. It is named for Daniel Morgan, an officer in the American Revolutionary War.HistoryMorgan County was formed on December 29, 1817, from portions of Guernsey, Muskingum and Washington counties. It was named after Daniel Morgan, a member in the Congress from Virginia, and general in the American Revolutionary War.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (1.3%) is water.Adjacent countiesMuskingum County (north)Noble County (northeast)Washington County (southeast)Athens County (southwest)Perry County (west)Public areasWayne National ForestBurr Oak State Park