Ravenna is a city in Portage County, Ohio, Ohio, United States. It was formed from portions of Ravenna Township in the Connecticut Western Reserve. The population was 11,724 in the 2010 Census and estimated at 11,533 in 2016. It is the county seat of Portage County. Ravenna was founded in 1799, platted in 1808, and is named for the city of Ravenna, Italy. The city is part of the Akron Metropolitan Statistical Area and the larger Cleveland–Akron–Canton Combined Statistical Area.