Regions of Tanzania by population, land area and capitals

Region	Population	Area (Km²)	Capital
Arusha	1,694,310	33,809	Arusha
Dar es Salaam	4,364,541	1,393	Dar es Salaam
Dodoma	2,083,588	41,311	Dodoma
Geita	1,739,530		Geita
Iringa	941,238	56,864	Iringa
Kagera	2,458,023	28,388	Bukoba
Katavi	564,604		Mpanda
Kigoma	2,127,930	37,037	Kigoma
Kilimanjaro	1,640,087	13,309	Moshi
Lindi	864,652	67,000	Lindi
Manyara	1,425,131	46,359	Babati
Mara	1,743,830	19,566	Musoma
Mbeya	2,707,410	60,350	Mbeya
Morogoro	2,218,492	70,799	Morogoro
Mtwara	1,270,854	16,707	Mtwara
Mwanza	2,772,509	19,592	Mwanza
Njombe	702,097		Njombe
Pemba North	211,732	574	Wete
Pemba South	195,116	332	Chake Chake
Pwani	1,098,668	32,407	Dar es Salaam
Rukwa	1,004,539	68,635	Sumbawanga
Ruvuma	1,376,891	63,498	Songea
Shinyanga	1,534,808	50,781	Shinyanga
Simiyu	1,584,157		Bariadi
Singida	1,370,637	49,341	Singida
Tabora	2,291,623	76,151	Tabora
Tanga	2,045,205	26,808	Tanga
Zanzibar North	187,455	470	Mkokotoni
Zanzibar South and Central	115,588	854	Koani
Zanzibar West	593,678	230	Zanzibar

Tanzania regions, districts

As of 2021 Tanzania comprises 31 regions divided into 184 districts.

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.

Reformation of Tanzania districts

Around 1972: Makete district created from Njombe.

1980: Meatu district created from Maswa.

1995: Bukombe district created from Kahama. Karatu district created from Mbulu. Mkuranga district created from Kisarawe.

Around 1995: Kilolo district created from Iringa Rural.

1996: Tandahimba district created from Newala.

1996-07: Misungwi district created from Kwimba.

Around 1998: Mbarali district created from Mbeya Rural.

2000: Kishapu district created from Shinyanga Rural.

2002: Kilindi district created from Handeni.

2002-07: Mvomero district created from Morogoro Rural.

2007-07-01: Mkinga district created from Muheza.

2012-03-02: Government created 19 new districts: Buhigwe (capital Buhigwe, created from Kasulu) Busega (capital Nyashimo, created from Magu)

Butiama (capital Butiama, created from Musoma)

Chemba (capital Chemba, created from Kondoa)

Gairo (capital Gairo, created from Kilosa)

Ikungi (capital Ikungi, created from Singida)

Itilima (capital Lagangabilili, created from Bariadi)

Kakonko (capital Kakonko, created from Kibondo)

Kalambo (capital Matai, created from Sumbwanga)

Kaliua (capital Kaliua, created from Urambo)

Kyerwa (capital Rubwera, created from Karagwe)

Mbogwe (capital Mbogwe, created from Bukombe)

Mkalama (capital Nduguti, created from Iramba)

Mlele (capital Inyonga, created from Mpanda)

Momba (capital Chitete, created from Mbozi)

Nyang’hwale (capital Kharumwa, created from Geita)

Nyasa (capital Mbamba Bay, created from Mbinga)

Uvinza (capital Lugufu, created from Kigoma)

and Wanging’ombe (capital Igwachanya, created from Njombe).