6 Jobs at IRINGA District Council July, 2021. Iringa is a town in central Tanzania. It sits on a cliff overlooking the Ruaha River Valley, in the Southern Highlands region. The town center has German colonial buildings and a popular market. The Commonwealth War Graves Cemetery memorializes soldiers who died in local battles during WWI and WWII. From Gangilonga Rock, which was once an important chieftain meeting spot, views stretch over the town.