Quadrastate is a 12"extended play by 808 State, released in 1989 on the Creed Records label. It contains the original version of "Pacific State", one of the most popular tracks by 808 State, which later made the band famous after extended airplay on BBC Radio 1 led to the band being signed to major label ZTT. On 19 May 2008, the UK Rephlex label re-released the record in double vinyl and CD format.
The re-issued version featured seven additional bonus tracks not included in the original. In addition, there were some alterations to the originally released version, including editing to the track "106".