Tidewater region is a geographic area in the US.
The Piedmont is a plateau region located in the eastern United States . The Tidewater region is a geographic area of southeast Virginia and northeastern North Carolina , part of the Atlantic coastal plain in the United States of America . It includes Hampton Roads , the rest of the Virginia Peninsula , the Middle Peninsula , the Northern Neck , and the Eastern Shore . Virginia ( [ vɚˈdʒɪnjə ] , [ vɚˈdʒɪni.ə ] , officially the Commonwealth of Virginia ) is a state located on the Atlantic Coast of the United States .