As of 2021, there are 31 regions (Swahili: mkoa, plural mikoa) of Tanzania which are divided into 184 districts (Swahili: wilaya).
[1][2] In 2016, Songwe Region was created from the western part of Mbeya Region.
[3][4] The districts are each administered by a district council.
Cities are separately administered by their own councils, and while administratively within a region, are not considered to be located within a district.
The districts are listed below, by unofficial area then region:[5]