Toledo is a city in, and the county seat of, Tama County, Iowa, United States. The population was 2,369 at the time of the 2020 census. Tol…Toledo is a city in, and the county seat of, Tama County, Iowa, United States. The population was 2,369 at the time of the 2020 census. Toledo was founded in 1853 as the county seat of Tama County. It was named after Toledo, Ohio. Toledo was incorporated as a city in 1866.