Zanzibar West District is one of the two districts of the Zanzibar Urban/West Region of Tanzania. It is bordered to the north by the Zanzibar North Region, to the east by the Zanzibar Central/South Region, to the south by Kiwani Bay, and to the west by the Zanzibar Urban District.

As of 2002 Census, the population of the Zanzibar West District was 184,204, but by the 2012 Census it had more than doubled to 370,645

For parliamentary elections, Tanzania is divided into constituencies. As of the 2010 elections the area for Zanzibar West District had nine of the nineteen constituencies in the region:

• Bububu Constituency
• Dimani Constituency
• Dole Constituency
• Fuoni Constituency
• Kiembesamaki Constituency
• Magogoni Constituency
• Mfenesini Constituency
• Mtoni Constituency
• Mwanakwerekwe Constituency

As of 2012, the Zanzibar West District was administratively divided into thirty-nine wards:

Nr.	Ward (Shehia)	Population 2012	Parliamentary Constituency	Remarks
1	Sharifu Msa	4,975	Bububu
2	Kibweni	7,115	Bububu
3	Mwanyanya	9,683	Bububu
4	Bububu	15,666	Bububu
5	Kihinani	14,139	Mfenesini
6	Chuini	6,158	Mfenesini
7	Kama	2,921	Mfenesini
8	Mfenesini	2,803	Mfenesini
9	Mwakaje	2,907	Mfenesini
10	Mbuzini	5,856	Mfenesini	"on the goat"
11	Bumbwisudi	2,269	Dole
12	Kizimbani	3,304	Dole
13	Dole	3,933	Dole
14	Kianga	9,908	Dole
15	Mwera	10,238	Dole
16	Mtufaani	9,123	Dole
17	Mtoni	6,571	Mtoni	"in the river"
18	Mtoni Kidatu	16,612	Mtoni
19	Mto Pepo	16,440	Mtoni
20	Welezo	13,119	Magogoni
21	Magogoni	14,928	Magogoni
22	Kinuni	11,333	Magogoni
23	Pangawe	26,275	Fuoni
24	Fuoni Kibondeni	15,40	Fuoni
25	Maungani	4,048	Fuoni
26	Fuoni Kijito Upele	19,374	Fuoni
27	Mwanakwerekwe	20,215	Mwanakwerekwe
28	Meli Nne	16,984	Mwanakwerekwe
29	Tomondo	23,354	Mwanakwerekwe
30	Mombasa	14,492	Dimani
31	Kisauni	9,331	Dimani
32	Shakani	2,760	Dimani
33	Nyamanzi	1,287	Dimani
35	Dimani	2,052	Dimani
34	Kombeni	3,162	Dimani
36	Bweleo	971	Dimani
37	Fumba	981	Dimani
38	Kiembesamaki	11,760	Kiembesamaki
39	Chukwani	8,298	Kiembesamaki
Total	Zanzibar West	370,645