In the United States. If used by an American, the term generally sounds affected, designed to imply that the speaker/writer is a world traveler or an expatriate.
"It feels so weird being stateside again", sighed the student returning from her junior year abroad.
by jaqua April 26, 2006
In the U.S. usually used when talking to someone who travels between the U.S. and other parts of the world
Person one; yeah I'm going state side this fall for college
by -inster text here- August 18, 2010
Refers to the United States side of the border.
I'm headed stateside this weekend so I can get my ass SHOT!
by GeeBee November 05, 2003