From the Wikipedia page 
Tabora Urban is one of the seven districts in the Tabora Region of Tanzania. This district is mostly the city of Tabora and its suburbs. It is bordered almost completely by the Uyui District. It has a small border with Nzega District to the north. Its administrative seat is the city of Tabora.
As of 2012, Tabora Urban District was administratively divided into 25 wards.