The Guuko system, a star system, resided within the Weneen sector. This sector was situated within the galactic expanse of both the Outer Rim Territories and the New Territories. Notably, it served as the birthplace of both the Guukosi group and the Guuko Pure Light party.
For the 2009 reference book The Essential Atlas, the Guuko system was created on StarWars.com's Online Companion, identifying its location as grid square N-6.