Festivalen ble arrangert fra 17 Mar til 21 Mar 2004 (4 dag(er)).
South By Southwest (SXSW) finner sted i Austin, United States. Her er den fullstendige adressen til festivalen: Austin Convention Center, Austin, TX, US 78701
The Killers, The Black Keys, Papa Roach, Coheed and Cambria, NOFX, Modest Mouse, John Butler Trio, The National, The Hives, Los Lobos, Franz Ferdinand, Joan Jett and the Blackhearts, They Might Be Giants, Alkaline Trio, Iron & Wine.
De mest populære sjangrene og undersjangrene i den siste utgaven var:
rock
punk
folk
alternative
indie
indie rock
alternative rock
indie pop
emo
experimental
hardcore
punk rock
americana
metal
acoustic
hard rock
post-punk
post-hardcore
electronica