The City of Johannesburg Metropolitan Municipality is a metropolitan municipality that manages the local governance of Johannesburg, South Africa. It is divided into several branches and departments in order to expedite services for the city.

Johannesburg is a divided city: the poor mostly live in the southern suburbs or on the peripheries of the far north, and the middle class live largely in the suburbs of the central and north. As of 2012, unemployment is near 25% and most young people are out of work. Around 20% of the city lives in abject poverty in informal settlements that lack proper roads, electricity, or any other kind of direct municipal service. Another 40% live in inadequate housing with insufficient municipal housing.

Following the end of the apartheid era, in April 1991 the Central Witwatersrand Metropolitan Chamber was formed as a "people-based" negotiating forum prior to holding a democratic election and the formation of a new administration for the Johannesburg area. Following the 1993 "Local Government Transition Act", the Greater Johannesburg Negotiating Forum was created, and this forum in September 1994 reached an agreement which entailed regrouping the suburbs into new municipal structures, the metropolitan local councils (MLCs), and the overarching Greater Johannesburg Metropolitan Council, also known as the "Transitional Metropolitan Council" for the city.

The government of Johannesburg's metropolitan area evolved over a seven-year period from 1993, when no metropolitan government existed under apartheid, to the establishment in December 2000 of today's Metropolitan Municipality. An "interim phase" commenced with the 1993 Constitution. This saw the establishment at the metropolitan level of the Transitional Metropolitan Council (TMC) and several urban-level councils under and neighbouring the TMC. In February 1997 the final constitution replaced the interim constitution and its transitional councils with the final system of local government which defined the current category A, B and C municipalities. Today's City of Johannesburg Metropolitan Municipality was created accordingly as a category A municipality, giving it exclusive executive and legislative power over its area.

The new post-apartheid administration was the "Greater Johannesburg Metropolitan Council" (GJMC), also known as the "Transitional Metropolitan Council", created in 1995. The council adopted the slogan "One City, One Taxpayer" to highlight its primary goal of addressing unequal tax revenue distribution. To this end, revenue from wealthy, traditionally white areas would pay for services needed in poorer, black areas. The City Council was divided initially into seven municipal substructures (MSSs), rationalized within a year to four MSSs, each with a substantially autonomous authority or "Metropolitan Local Council" (MLC) that was to be overseen by the central metropolitan council. Furthermore, the municipal boundaries were expanded to include wealthy satellite towns like Sandton and Randburg, poorer neighbouring townships such as Soweto and Alexandra, and informal settlements like Orange Farm. The four MLCs were: the Southern MLC covering Ennerdale, most of Soweto, parts of Diepmeadow and the old Johannesburg City and Lenasia; the Northern MLC covering Randburg and Randburg CBD, and parts of Soweto, Diepmeadow and the old Johannesburg City; the Eastern MLC covering Sandton, Alexandra, and part of the old Johannesburg City; the Western MLC covering Roodepoort, Dobsonville and parts of Soweto, Diepmeadow.

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