|Size:||9,353 square miles|
|Motto:||"Live free and prosper"|
New Langdon is a fictional northeastern state in the GTA Expanded Universe located on the eastern coast of the United States. It borders the state of Liberty to the west, the North Atlantic Ocean to the east and the international border with Canada to the north.
It is named for John Langdon, the second Governor of New Hampshire, and is based on the real-life state of New Hampshire. Agriculture and manufacturing form the mainstay of the state economy with the state hosting a large number of dairy and crop farms.