Nsirimo is a large community of about 5,000 people situated in Ubakala, Umuahia South Local Government in Abia state, Nigeria. It comprises autonomous community .Umumba is a community consisting of the Ibeku tribe and some other smaller tribes. It is bordered with Umuako in the west and Ubakala in the south. Its major market is Oreama market which is in the north. Umumba is not to far from Apumiri the Headquarters of Umuahia South Local Government Area.
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