There are three different categories of municipalities in South Africa and they have slightly different electoral systems.
Metropolitan municipalities (Category A):
Metropolitan municipalities exist in the six biggest cities in South Africa. They have more than 500 000 voters and the metropolitan municipality co-ordinates the delivery of services to the whole area. There are metropolitan municipalities in Johannesburg, Cape Town, Ethekweni (Durban), Tshwane (Pretoria), Nelson Mandela (Port Elizabeth) and the Ekhuruleni (East Rand). These municipalities are broken into wards. Half the councillors are elected through a proportional representation ballot, where voters vote for a party. The other half are elected as ward councillors by the residents in each ward.