Worcester County is the easternmost county of the U.S. state of Maryland. As of the 2020 census, the population was 52,460. Its county seat is Snow Hill. The county is part of the Lower Eastern Shore region of the state. It is the only county of Maryland that borders the Atlantic Ocean, and the only county bordering both Delaware and Virginia. The county was named for Mary Arundell, the wife of Sir John Somerset, a son of Henry Somerset, 1st Marquess of Worcester.