The Londor system existed within the Londori sector, which itself was situated in the New Territories region of the Mid Rim. This star system maintained hyperlane connections to the systems of Ariarch, Valrar, Darkon, and Glee Anselm. The Londori Mental Facility was located there. By the year 12 ABY, the New Republic held dominion over the Londor system.
The 2009 reference work, The Essential Atlas, by Daniel Wallace and Jason Fry, marked the introduction of the Londor system, positioning it within grid J-7. An initial update to the StarWars.com Online Companion for The Essential Atlas incorrectly stated the Londor system's location as grid J-6, within the "Gantus" sector of the Outer Rim Territories. This was a misspelling of the Dantus sector of the Outer Rim, partially situated at those coordinates. Subsequent Online Companion updates rectified this inaccuracy.