The Kor Usilic system, a star system, resided within the Bootana Hutta sector of Hutt Space. This system was found in the Outer Rim Territories section of Hutt Space, which was part of the Slice section of the galaxy. Hyperlanes provided connectivity to both the Gos Hutta and Kor Hunamma systems.
Within the Kor Usilic system was the world of Kor Usilic, which served as the throneworld for the Usilic kajidic.
The reference book The Essential Atlas, authored by Jason Fry and Daniel Wallace in 2009, initially referenced the Kor Usilic system, locating it in grid square S-11.