Lucas County is a county located in the northwestern part of the U.S. state of Ohio. It is bordered to the east by Lake Erie, and to the southeast by the Maumee River, which runs to the lake. As of the 2020 census, the population was 431,279. Its county seat and largest city is Toledo, located at the mouth of the Maumee River on the lake.
Toledo is a city in Lucas County, Ohio, United States, and its 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, with a population of 270,871 at the 2020 census.