Cincinnati is a city in and the county seat of Hamilton County, Ohio, United States. Settled in 1788, the city is located in the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line with Kentucky. The city is the economic and cultural hub of the Cincinnati metropolitan area and has an estimated population of 2,265,051. The city is Ohio's largest metropolitan area and the nation's 30th-largest city. The population of Cincinnati is 309,317 which makes the city the third-most populous city in Ohio after Columbus and Cleveland, and 65th in the United States.