High Quality Content by WIKIPEDIA articles! The Cleveland metropolitan area, or Greater Cleveland as it is more commonly known, is the metropolitan area of Northeast Ohio that contains Cleveland, Ohio, United States and its surrounding area. According to the 2010 Census, the five-county Cleveland-Elyria-Mentor Metropolitan Statistical Area (MSA) consists of Cuyahoga County, Geauga County, Lake County, Lorain County, and Medina County, and has a population of 2,077,240. Greater Cleveland is the 28th most populous metropolitan area in the United States and largest metro entirely in Ohio.