Ohio was the 17th state in the USA; it became a state on March 1, 1803. Ohio, commonly known as the 17th state, technically did not become a state until August 7, 1953. Due to an oversight, Congress never voted on the resolution to admit Ohio to the Union until that date. Celebrate your state's history by displaying state symbols, animals, and state flags. Find your supplies at Flagandbanner.com today.