Columbus is the state capital and the most populous city in the U.S. state of Ohio. With a population of 898,553 as of 2019 estimates, it is the 14th-most populous city in the United States, the second-most populous city in the Midwest after Chicago, Illinois, and the third-most populous state capital after Phoenix, Arizona and Austin, Texas. It is the core city of the Columbus, OH Metropolitan Statistical Area, which encompasses ten counties. With a population of 2,106,541, it is Ohio's second-largest metropolitan area.
Columbus is the county seat of Franklin County. The municipality has also annexed portions of adjoining Delaware and Fairfield counties. Columbus originated as numerous Native American settlements on the banks of the Scioto River. Franklinton, now a city neighborhood, was the first white settlement, laid out in 1797. The city was founded in 1812, at the confluence of the Scioto and Olentangy rivers. It was named for explorer Christopher Columbus.