Cumberland, officially the City of Cumberland, is a western gateway city and seat of Allegany County, Maryland, United States and the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2010 census, the city had a population of 20,859, and the metropolitan area had a population of 103,299. Cumberland is a regional business and commercial center for Western Maryland and the Potomac Highlands of West Virginia. Cumberland is commonly referred to as “Where The South Begins,” as official United States Census Bureau records place it below the Mason Dixon line.

https://en.wikipedia.org/wiki/Cumberland,_Maryland