Parris Island is located in the Atlantic coast of South Carolina, United States, specifically as a Sea Island in Port Royal Sound just south of the town of Port Royal in Beaufort County. It has long served as a Marine Corps recruit depot (MCRD Parris Island) since 1915 and is geographically adjacent to Port Royal and Beaufort, South Carolina. If you’re planning a visit or looking for practical details, here are quick pointers:

• Location: Beaufort County, South Carolina, on a barrier island near Port Royal, south of the town of Port Royal.
• Function: U.S. Marine Corps Recruit Depot Parris Island, a major basic training facility for Marines.
• Access and governance: The island is part of the Port Royal area and has been annexed into the nearby town structure in recent decades.
• Nearby landmarks: Port Royal Sound to the north and the broader Beaufort Lowcountry region.

If you need precise coordinates, current visitor access policies, or directions, I can look up up-to-date details and official sources.