www.toledo.oh.gov Toledo is the fourth most populous city in the U.S. state of Ohio and is the county seat of Lucas County. Toledo is in northwest Ohio, on the western end of Lake Erie, and borders the State of Michigan. The city was founded in 1833 on the west bank of the Maumee River, originally incorporated as part of Monroe County, Michigan Territory, then re-founded in 1837, after conclusion of the Toledo War, when it was incorporated in Ohio. Toledo grew quickly as a result of the Miami and Erie Canal and its position on the railway line between New York and Chicago. It has since become a city well known for its industry, particularly in glass and auto assembly, as well as for its art community, education, and local sports teams. The population of Toledo as of the 2010 Census was 287,208, while the Toledo metropolitan area had a population of 651,409.