Toledo is a city in Lewis County, Washington, United States. The population was 725 at the 2010 census. Toledo was officially incorporated on October 10, 1892. Toledo was named by Celeste Rochon after a pioneer side wheel paddle steamer operated by Captain Oren Kellogg of the Kellogg Transportation Company. The boat traveled the Cowlitz River. A picture of the riverboat is hanging downtown next to the drugstore.