Cape Town's local government is the City of Cape Town, which is a metropolitan municipality. Cape Town is governed by a 210-member city council, which reports to a 28-member executive council. The executive council, in turn, is presided over by a city manager and an executive mayor. The city is divided into 105 electoral wards; each ward directly elects one member of the council, whilst the other 105 councillors are elected by a party-list proportional representation system. The mayor is chosen by the city council.

In the most recent local government elections, the Democratic Alliance was the largest single party with 90 of the 210 seats on the council, ahead of the African National Congress's 81 seats, but with no party holding a majority. A subsequent by-election has increased the DA's seats to 91. The DA has now increased its majority, by introducing the Independent Democrats (South Africa) to the coalition, and so the DA-led council now has a majority of 22 seats.

Mayor Helen Zille of the Democratic Alliance resigned on 29 April 2009 as a result of her election to the Western Cape Provincial Parliament and Provincial Leader; The new mayor of cape Town is Mr. Dan Plato.

Source: http://en.wikipedia.org/wiki/Cape_Town