 Diru/Driru/Biru is located on the Gyalmo Ngulchu River (upper part of Gyalmo Ngulchu).Diru is bordered by Sog county སོག་རྫོང་། to the northwest and the extreme east of Palbar (Banbar County) དཔལ་འབར་རྫོང་, is also surrounded by Lhari county ལྷ་རི་རྫོང་/ to the south, and extreme north to the Nagchu county.The Biru Skull Wall
At the 2009 PRC census, the county's population was 60,179, of whom