Show your family and friends how good life is with our Ohio Clock. Ohio is located in the Midweste area of the the United States. It is 34th largest state by area in the U.S.A. The name 'Ohio' comes from the Iroquois word ohi-yo’, meaning "great river". The state was admitted to the Union as the 17th state (and the first under the Northwest Ordinance) on March 1, 1803. Ohio is known as the 'Buckeye State' because of the Buckeye Tree and many residents refer to them selves as "Buckeyes"