Toledo is a city in Lucas County, Ohio, United States, of which it is also the county seat. It is located at the western end of Lake Erie along the Maumee River. Toledo is the fourth-most populous city in Ohio and 86th-most populous city in the U.S., with a population of 270,871 at the 2020 census. The Toledo metropolitan area has an estimated 601,000 residents. Toledo also serves as a major trade center for the Midwest; its port is the fifth-busiest on the Great Lakes.