Yellow District was the term used by the Falleen to describe the section of their capital city, Falleen Throne, that was the most polluted, during the years leading up to the Clone Wars. Their homeworld of Falleen had experienced a boom in the construction of manufacturing facilities, and many of these facilities operated with little or no environmental control. Thus, the air surrounding these facilities was laden with smog and chemicals, and appeared yellow in the light of Falleen's sun.