The Pacor sector was located in the New Territories region of the Mid Rim. At the time of 0 ABY, it shared a border with the Corthenia sector in the Coreward direction, the Barsa and Glythe sectors spinward, and the Dantus sector of the Outer Rim Territories' Rimward. The Irishi sector bordered the Pacor sector in the trailing direction. By 12 ABY, these borders remained unchanged, and the space occupied by the sector was under the control of the New Republic.
The Traval-Pacor system was situated within the Pacor sector, serving as a nexus for hyperlanes that connected Pacor to the Corthenia and Glythe sectors. By 1 BBY, the system was home to the Traval-Parcor System Institute of Technology. By 4 ABY, the Galactic Empire operated a shipyard within the Traval-Pacor system for the production of Imperial-class Star Destroyers. In 12 ABY, a battle took place in the system between the naval forces of the Imperial Remnant and the New Republic; the New Republic emerged victorious.
The Pacor sector's existence was first established in the Online Companion on StarWars.com for the 2009 book The Essential Atlas, written by Daniel Wallace and Jason Fry. The sector was first visually depicted in a map created by Modi in the 2012 reference book The Essential Guide to Warfare.