Portage County is a county in the U.S. state of Ohio. As of the 2020 census, the population was 161,791. Located in Northeast Ohio, Portage County is part of the Akron Metropolitan Statistical Area, which is also included in the Cleveland–Akron–Canton Combined Statistical Area. Its county seat is Ravenna and its largest city is Kent. The county, named for the portage between the Cuyahoga and Tuscarawas rivers, was created in 1807 and formally organized in 1808.