Events concerning the Grand Theft Auto series in 2004.
- Grand Theft Auto: San Andreas is first released on the PlayStation 2.
- Grand Theft Auto Advance is first released on the GameBoy Advance.
- Grand Theft Auto: Vice City is released in Japan on PS2, two years after the rest of the world.
- The events of Prologue takes place.
- The Lost MC members Johnny Klebitz, Brian Jeremy, and Terry Thorpe ride their motorcycles to Los Santos.
- Teddy Benavidez is arrested for assault, aged 24.
- Jon Gravelli, Jr. is arrested for armed robbery, aged 36.
- Hsin Jaoming is arrested for assault, aged 68.
- Lester Leroc is arrested for burglary: illegal entry with criminal intent, aged 42.
- Alonso Gomez is arrested for possession of crack cocaine, aged 18.
- Chastity Quinn is arrested two times for arson, aged 16.
- Jermaine Andrews is arrested for possession of stolen property, aged 29.
- Ivan Bytchkov is arrested for burglary: illegal entry with criminal intent, aged 38.
- Cherise McCormic is arrested for resisting arrest, aged 34.
- Tyler Dixon is arrested for assault, aged 21.
- Johnny Barbosa is arrested for assault and petit larceny, aged 21.
- Marlon Bridges is arrested for assault, aged 17.
- Steven Jabowitz is arrested for possession of gambling records, aged 39.
- Lazlow Jones is arrested for bribery, aged 42.
- Trey "Playboy X" Stewart stops visiting Dwayne Forge in prison.
- Vladimir Glebov is arrested for extortion, aged 37.
- Bernie Crane is arrested for possession of a controlled substance: Ecstasy, aged 26.
- Brucie Kibbutz is arrested for speeding violation, aged 27.
- Jeremy St. Ives is arrested for patronizing prostitution, aged 28.
- Tom Rivas is arrested for fraud, aged 23.
- Mario Venturella is arrested for prostitution, aged 16.
- Joseph DiLeo is arrested for armed robbery, aged 23.
- Frankie Gallo is arrested for possession stolen property, aged 27.
- Leila Sharpe is arrested for petit larceny, aged 27.
- Goldberg, Ligner & Shyster filed an law suit against Pirate Music, but ended up losing the case.
- The San Andreas Flight School was established in Los Santos International Airport.
- Production of the Premier begins, paralleling the production of its inspiration, the Chevrolet Cobalt.
- Merle Abrahams dies while in prison at age 57.
- Highmen Space Tours was founded on Highmenspacetours.com.
- Java Update Coffeeshop was established on Boulevard Del Perro in Rockford Hills, Los Santos.