The events of September 11, 2001, had a profound impact on the nation and world, setting off widespread change. This impact was also felt in the Rio Grande Valley, where the effects of the tragedy were similar to those experienced elsewhere. The aftermath of the event saw significant disruptions to daily life, with businesses closing out of respect and travel plans being canceled.

Ports of entry operated with increased security measures in place. Further details on the effects of the event are available from archival reporting, which provides a more detailed portrait of the impact on the community.