Tidewater (region)

Painted relief map of the Tidewater region on the east coast of the United States in darkest green to one shade lighter green to the west.

"Tidewater" is a term for the north Atlantic Plain region of the United States, located east of the Piedmont. It includes Delaware, the remainder of the Delmarva Peninsula, Southern Maryland and the Eastern Shore of Maryland, Washington, D.C., Eastern Virginia, and Eastern North Carolina.