The Bronx formed in 2002 in Los Angeles, California.

The fisrt lineup of the band consisted of singer Matt Caughthran, guitarist Joby J. Ford, bassist James Tweedy, and drummer Jorma Vik. After their first performance, Jonathan Daniel, manager of American Hi-Fi, became their manager. After as little as twelve live performances the band signed with the Island Def Jam Music Group. Shortly following this, the band opted to form their own label White Drugs to put out their first few releases.They recorded a demo entitled Sure Death in 2002, followed by their first single "Bats!" in 2003. Their debut album The Bronx was released in August 2003, followed by the EP La Muerte Viva that November. To support the album, singles and music videos were released for the songs "They Will Kill Us All (Without Mercy)" and "False Alarm".

The Bronx's major-label debut was The Bronx (2006), It was supported by singles and music videos for "History's Stranglers", "White Guilt" and "Shitty Future".

In April 2007 the band announced that they would record two new albums. The Bronx will be a punk rock album, and El Bronx will be a mariachi album. They entered a recording studio in March 2008 to begin work on both albums, with Brad Magers (formerly of Christiansen and Your Highness Electric). In the Summer of 2008 The Bronx played the entirety of the Warped Tour.

They also appeared in the film What We Do Is Secret as Black Flag, performing the Black Flag song "Police Story". In preparation for the release of El Bronx, the band has recently been performing as "Mariachi El Bronx" when playing their mariachi set and as "The Bronx" for rock sets. The Bronx was released on November 11, 2008 and El Bronx on August 17, 2009.

Go check them out live!