Ohio is a U.S state situated in the Midwestern region of the United States. Columbus is the capital and largest city of Ohio. The buckeye state is the nickname of Ohio. Ohio Zip Code started with the digit 4300. The total number of Ohio Zip Code approximately 1,415. The total population of Ohio about 11,689,100. So you can find any information about Ohio especially zip codes, area codes, Populations, cities, county and so on.