High Quality Content by WIKIPEDIA articles! Ukerewe is one of the 8 districts of the Mwanza Region of Tanzania. It is located on Ukerewe Island and the largest settlement is Nansio. According to the 2002 Tanzania National Census, the population of Ukerewe District was 261,944. There is a small hotel and a guest house on the island. Ukerewe District is administratively divided into 24 wards: Bukanda, Bukiko, Bukindo, Bukongo, Bukungu, Bwiro, Bwisya, Igalla, Ilangala, Irugwa, Kagera, Kagunguli, Kakerege, Mukituntu, Muriti, Murutunguru, Nakatunguru, Namagondo, Namilembe, Nansio, Nduruma, Ngoma, Nkilizya, and Nyamanga.