Festival dijadwalkan dari 17 Mar hingga 21 Mar 2004 (4 hari).
South By Southwest (SXSW) berlangsung di Austin, United States. Berikut adalah alamat lengkap festival: 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.
Genre dan sub-genre yang paling populer dari edisi sebelumnya adalah:
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