The Sunyani West Municipal is one of the 261 Metropolitan, Municipal and District Assemblies (MMDAs) in Ghana, and forms part of the 12 of Municipalities and Districts in the Bono Region with Odomase as the administrative capital.

The Sunyani West Municipal Assembly (SWMA), which was carved out of Sunyani East District now Sunyani Municipal was established in November 2007 through the Legislative Instrument (LI) 1881 and inaugurated on 29th February 2008.

Geographically, the Municipality lies between latitudes 7º 19´N and 7º 35´N and longitudes 2º 08´ W and 2º 31´ W and covers a total land area of 1031 Km2

The Municipality shares boundaries with Wenchi Municipal to the north, Offinso North District to the east, Sunyani Municipal to the south, Berekum East Municipal to the west, Dormaa Central Municipal, Dormaa East District to the south-west and Tain District to the north-west.

The population of the Municipality according to the 2021 Population and Housing Census stands at 136,022 with 67,251 males and 68,771 females.