Jamestown Island (except Jamestown National Historic Site administered and maintained by the Association for the Preservation of Virginia Antiquities) is part of Colonial National Historical Park. The park also includes Yorktown Battlefield, Colonial Parkway, and Cape Henry Memorial. It is administered by the National Park Service of the United States Department of the Interior.

Inquiries relating to the Association for the Preservation of Virginia Antiquities area should be addressed to that Association, Jamestown, Va.; those relating to the National Park Service area to the Superintendent, Colonial National Historical Park, Yorktown, Va.