Franklin County, Ohio

Franklin County is a county in the U.S. state of Ohio. As of the 2010 census, the population was 1,163,414, making it the second-most populous county in Ohio. Its county seat is Columbus, the state capital and most populous city in Ohio. The county was established on April 30, 1803, less than two months after Ohio became a state, and was named after Benjamin Franklin. Franklin County originally extended all the way north to Lake Erie before Ohio subdivided further into more counties.