To be precise, it refers to the area between the Horikawa-dori Street in the east and the Shichihonmatsu-dori Street in the west and between the Kuramaguchi-dori Street in the north and the Nakadachiuri-dori Street in the south of Kamigyo Ward; however, the exact location of Nishijin is not officially specified because Nishijin is not a real address.
上京区内の東の堀川通から西の七本松通、北の鞍馬口通から南の中立売通あたりまでの範囲の中を指すが、住所としては存在せず、どこからどこまでかは正確に定められているわけではない。