Maryland is situated on the eastern seaboard of the US in the South Atlantic region. It ranks 42nd in size among the 50 states. Maryland covers a total area of 10,460 sq mi (27,092 sq km) of which 9,837 sq mi (25,478 sq km) comprises of land and 623 sq mi (1,614 sq km) of inland water. Price George’s County is the state’s geographic center while Annapolis is the capital of Maryland.

Maryland is bounded by Pennsylvania to the north; by Delaware and the Atlantic Ocean to the east; by Virginia, the District of Columbia, and West Virginia to the South and South West; and on the extreme West by West Virginia. Important islands in Chesapeake Bay, off Maryland's Eastern Shore include Kent, Bloodsworth, South Marsh, and Smith. Maryland covers a total boundary length of 842 mi (1,355 km).