The Eastern United States or the American East, is today defined by some as the states east of the Mississippi River, and is traditionally divided by the Ohio River and Appalachian Mountains into the South, the Old Northwest and the East. The first two tiers of states west of the Mississippi have traditionally been considered part of the West, but can be amalgamated with states of the Old Northwest into what the Census Bureau defines as the Midwestern United States. It has been considered part of the Eastern United States in regional models that exclude a Central region. As of 2011, the estimated population of the 26 states east of the Mississippi plus the District of Columbia totals 179,948,346 out of 308,745,358 in the whole nation, or 58.28% of the U.S. population. The Eastern United States is home to several airlines, including Delta Air Lines in Atlanta Georgia, US Airways in Pittsburgh Pennsylvania, AirTran Airways in Orlando Florida, United Airlines in Chicago Illinois, Spirit Airlines in Miami Florida, and JetBlue Airways in New York New York. Major airports in the Eastern U.S. include Chicago O'Hare International Airport, Hartsfield-Jackson Atlanta International Airport, John F. Kennedy International Airport in New York, Logan International Airport in Boston, Miami International Airport in Miami, Philadelphia International Airport in Philadelphia, Pittsburgh International Airport in Pittsburgh, Washington-Dulles International Airport in Washington, D.C., Charlotte Douglas International Airport and Detroit Metropolitan Wayne County Airport. The Eastern U.S. is also home to Amtrak, an intercity passenger train service provider. The East did not represent a unified culture, due to its initial settlement by disparate European cultures and the vast number of immigrants who flooded the region from the mid-19th century to the present day. Wikipedia [ - ]

The Eastern United States or the American East, is today defined by some as the states east of... [ + ]