Sumbawanga Urban District is one of the four districts in the Rukwa Region of Tanzania. It is bordered to the north by Lake Rukwa, to the east by the Mbeya Region, to the south by the Sumbawanga Rural District and to the west by the Nkasi District. The district (and regional) capital is Sumbawanga.
According to the 2002 Tanzania National Census, the population of the Sumbawanga Urban District was 147,483.
Sumbawanga District Wikipedia
The Sumbawanga Urban District is administratively divided into thirteen wards:Izia