From the Wikipedia page 
Tandahimba is one of the 6 districts of the Mtwara Region of Tanzania. It is bordered to the East by the Mtwara Rural District, to the South by Mozambique, to the West by the Newala District, and to the North by the Lindi Region.
The Tandahimba District is administratively divided into 22 wards:
- Mdimba Mnyoma