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- (Eden District Municipality) Kranshoek Griekwa Nedersetting
- (Overberg District Municipality) Kontiki
- (Eden District Municipality) Krigedam
- (Eden District Municipality) Kruiskloof
- (Eden District Municipality) Kruisrivier
- (Eden District Municipality) Kruisrivier
- (Eden District Municipality) Kruisvallei
- (Cape Winelands District Municipality) Klapmuts
- (City of Cape Town) Kenilworth
- (West Coast District Municipality) Kalbaskraal
- (City of Cape Town) Kalkbaai
- (West Coast District Municipality) Karoetjieskop
- (Overberg District Municipality) Karwyderskraal
- (City of Cape Town) Katzenberg
- (City of Cape Town) Kenridge
- (Cape Winelands District Municipality) Keurbos
- (City of Cape Town) Khayelitsha
- (Eden District Municipality) Kleinvlei
- (Eden District Municipality) Kleinrivier
- (Eden District Municipality) Kleinplaat
- (Eden District Municipality) Klein-Brakrivierstrand
- (Eden District Municipality) Klein-Brakrivier
- (Eden District Municipality) Kleinberg
- (Central Karoo District Municipality) Klaarstroom
- (Eden District Municipality) Kingfisher Creek
- (Eden District Municipality) Keysers
- (Eden District Municipality) Keurboomstrand
- (Eden District Municipality) Keurboomsrivier
- (Eden District Municipality) Kerkrand
- (Eden District Municipality) Karatara Settlement