Worcester County /ˈwʊərstər/ is the easternmost county of the U.S. state of Maryland. As of the 2010 census, the population was 51,454. Its county seat is Snow Hill. It is the only county of Maryland that borders the Atlantic Ocean. The county was named for Mary Arundell, the wife of Sir John Somerset, a son of Henry Somerset, 1st Marquess of Worcester. She was sister to Anne Arundell (Anne Arundel County), wife of Cecil Calvert, 2nd Baron Baltimore, the first Proprietor and Proprietary Governor of the Province of Maryland. Worcester County is included in the Salisbury, MD-DE Metropolitan Statistical Area. The county includes the entire length of the state's ocean and tidewater coast along the Intracoastal Waterway bordering Assawoman Bay, Isle of Wight Bay, Sinepuxent Bay, and Chincoteague Bay between the sand barrier islands of Fenwick Island and Assateague Island bordering the Atlantic Ocean coast. It is home to the popular vacation resort area of Ocean City, founded 1875, as well as wild habitats on the primitive wilderness areas on Assateague Island and in the Pocomoke River and Swamp.