East Coast of the United States

East Coast of the United States
The East Coast of the United States. States with a coastline on the Atlantic Ocean are highlighted in dark blue. States considered part of the East Coast but without a coastline are highlighted in light blue.
Country United States
Principal cities
Largest cityNew York City
Largest metropolitan areaNew York metropolitan area
Population
 • Total
122,601,503
 • Estimate 
127,509,444
Time zones
most of East CoastUTC−05:00 (Eastern)
 • Summer (DST)UTC−04:00 (EDT)
Florida Panhandle west of the Apalachicola RiverUTC-06:00 (Central)
 • Summer (DST)-05:00

The East Coast of the United States, also known as the Eastern Seaboard, the Atlantic Coast, and the Atlantic Seaboard, is the region encompassing the coastline where the Eastern United States meets the Atlantic Ocean; it has always played a major socioeconomic role in the development of the United States.

The region is generally understood to include the U.S. states that border the Atlantic Ocean: Connecticut, Delaware, Florida, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Rhode Island, South Carolina, and Virginia, as well as some landlocked states (Pennsylvania, Vermont, West Virginia, and the district of Washington, D.C.).