M
| Town name | Postal code |
| Mabopane | 0190 |
| Mabopane | 0191 |
| Mabopane | 0192 |
| Mabopane | 0193 |
| Mabopane | 0194 |
| Mabopane | 0197 |
| Mabopane | 0198 |
| Mabopane | 0199 |
| Mabopane | 0207 |
| Mabopane | 0211 |
| Mabopane | 0212 |
| Mabopane | 0213 |
| Mabopane | 0214 |
| Mabopane | 0215 |
| Mabopane | 0218 |
| Mabopane | 0219 |
| Macassar | 7130 |
| Maclear | 5480 |
| Maclear | 5481 |
| Maclear | 5483 |
| Madadeni | 2951 |
| Madadeni | 2957 |
| Madibogo | 2773 |
| Madibogo | 2774 |
| Madibogo | 8655 |
| Madikwe | 2836 |
| Madikwe | 2838 |
| Madikwe | 2839 |
| Madikwe | 2841 |
| Madikwe | 2842 |
| Madikwe | 2843 |
| Madikwe | 2844 |
| Madikwe | 2845 |
| Madikwe | 2846 |
| Madikwe | 2847 |
| Madikwe | 2848 |
| Madikwe | 2849 |
| Madikwe | 2852 |
| Madikwe | 2854 |
| Madikwe | 2736 |
| Mafatsana | 1980 |
| Mafatsana | 1981 |
| Mafatsana | 1984 |
| Mafatsana | 1907 |
| Mafikeng | 2738 |
| Mafikeng | 2744 |
| Mafikeng | 2745 |
| Mafikeng | 2746 |
| Mafikeng | 2749 |
| Mafikeng | 2750 |
| Mafikeng | 2751 |
| Mafikeng | 2752 |
| Mafikeng | 2753 |
| Mafikeng | 2763 |
| Mafikeng | 2766 |
| Mafikeng | 2767 |
| Mafikeng | 2768 |
| Mafikeng | 2769 |
| Mafikeng | 0357 |
| Mafikeng | 2855 |
| Mafikeng | 2857 |
| Mafikeng | 2858 |
| Mafikeng | 2866 |
| Mafikeng | 2782 |
| Mafikeng | 2783 |
| Mafikeng | 2784 |
| Magadla | 4751 |
| Magadla | 4752 |
| Magadla | 4753 |
| Magalies View | 2067 |
| Magalieskruin | 0150 |
| Magalieskruin | 0182 |
| Magaliessig | 2067 |
| Magogong | 8575 |
| Mahlabatini | 3856 |
| Mahlabatini | 3865 |
| Mahwelereng | 0626 |
| Maidstone | 4380 |
| Maidstone | 4399 |
| Maidstone | 4406 |
| Maitland | 7405 |
| Maitland | 7451 |
| Makwassie | 2650 |
| Malamulele | 0816 |
| Malamulele | 0831 |
| Malamulele | 0833 |
| Malamulele | 0927 |
| Malamulele | 0928 |
| Malamulele | 0953 |
| Malamulele | 0981 |
| Malamulele | 0997 |
| Malamulele | 0998 |
| Malamulele | 0999 |
| Malamulele | 1007 |
| Malamulele | 1008 |
| Malelane | 1331 |
| Malmesbury | 7300 |
| Malmesbury | 7302 |
| Malmesbury | 7303 |
| Malmesbury | 7305 |
| Malmesbury | 7306 |
| Malmesbury | 7307 |
| Malmesbury | 7308 |
| Maluti | 4740 |
| Maluti | 4742 |
| Malvern | 4146 |
| Malvern | 4147 |
| Mamelodi | 0177 |
| Mamelodi | 0112 |
| Mamelodi | 0122 |
| Manaba Beach | 4276 |
| Mancorp Mine | 8423 |
| Mandeni | 3802 |
| Mandeni | 4490 |
| Mandeni | 4491 |
| Mandeni | 4492 |
| Manenberg | 7764 |
| Mangaung | 9307 |
| Mankurwane | 8345 |
| Manyama | 0753 |
| Mapumulo | 4470 |
| Marble Hall | 0449 |
| Marble Hall | 0450 |
| Marble Hall | 0451 |
| Marble Hall | 0452 |
| Marble Hall | 0453 |
| Marble Hall | 0454 |
| Marble Hall | 0455 |
| Marble Hall | 0456 |
| Marble Hall | 0457 |
| Marble Hall | 0458 |
| Marble Hall | 0459 |
| Marble Hall | 0460 |
| Marble Hall | 0464 |
| Marble Hall | 0465 |
| Marble Hall | 0466 |
| Marble Hall | 0467 |
| Marble Hall | 0468 |
| Marble Hall | 0472 |
| Marble Hall | 0478 |
| Marble Hall | 0479 |
| Marble Hall | 0484 |
| Marble Hall | 1062 |
| Marble Ray | 4035 |
| Marble Ray | 4037 |
| Marble Ray | 4039 |
| Margate | 4276 |
| Margate | 4277 |
| Margate | 4278 |
| Margate | 4275 |
| Margate | 4280 |
| Margate | 4281 |
| Marianhill | 4092 |
| Marianhill | 4142 |
| Marikana | 0284 |
| Marikana | 0285 |
| Marikana | 0286 |
| Marikana | 0317 |
| Marlboro | 2090 |
| Marlboro | 2063 |
| Marquard | 9610 |
| Marshalltown | 2111 |
| Mashashane | 0743 |
| Masoheng | 1908 |
| Matatiele | 4730 |
| Matatiele | 4731 |
| Matroosfontein | 7465 |
| Matroosfontein | 7480 |
| Matroosfontein | 7490 |
| Matroosfontein | 7491 |
| Matroosfontein | 7493 |
| Mayville | 4138 |
| Mayville | 4082 |
| Mayville | 4091 |
| Mbazwana | 3974 |
| Mbazwana | 3988 |
| Mbekweni | 7655 |
| Mbibane | 0449 |
| Mdantsane | 5221 |
| Meadowlands | 1801 |
| Meadowlands | 1803 |
| Meadowlands | 1852 |
| Meadowlands | 1853 |
| Medunsa | 0204 |
| Medunsa | 0190 |
| Mehlomnyama | 4246 |
| Melkbosstrand | 7440 |
| Melkbosstrand | 7441 |
| Melmoth | 3835 |
| Melmoth | 3837 |
| Melmoth | 3850 |
| Melmoth | 3857 |
| Menlo Park | 0081 |
| Menlo Park | 0040 |
| Menlo Park | 0042 |
| Menlo Park | 0060 |
| Merafong | 9483 |
| Merrivale | 3290 |
| Merrivale | 3291 |
| Merrivale | 3308 |
| Messina | 0900 |
| Meyerton | 1871 |
| Meyerton | 1872 |
| Meyerton | 1873 |
| Meyerton | 1876 |
| Meyerton | 1918 |
| Meyerton | 1938 |
| Meyerton | 1961 |
| Meyerton | 1962 |
| Meyerton | 1963 |
| Mid Illovo | 3750 |
| Middelburg | 5900 |
| Middelburg | 1050 |
| Middelburg | 1065 |
| Middelburg | 1066 |
| Middelburg | 1068 |
| Middelburg | 1069 |
| Middelburg | 1070 |
| Middelburg | 1071 |
| Middelburg | 1051 |
| Middelburg | 1052 |
| Middelburg | 1053 |
| Middelburg | 1054 |
| Middelburg | 1055 |
| Middelburg | 1056 |
| Middelburg | 1079 |
| Middelburg | 1111 |
| Middleburg | 1050 |
| Middledrift | 5686 |
| Milnerton | 7442 |
| Milnerton | 7443 |
| Milnerton | 7446 |
| Milnerton | 7447 |
| Milnerton | 7449 |
| Milnerton | 7435 |
| Milnerton | 7436 |
| Milnerton | 7441 |
| Minnebron | 1541 |
| Minnebron | 1549 |
| Mitchells Plain | 7784 |
| Mitchells Plain | 7785 |
| Mitchells Plain | 7786 |
| Mitchells Plain | 7787 |
| Mitchells Plain | 7788 |
| Mitchells Plain | 7798 |
| Mitchells Plain | 7802 |
| Mitchells Plein | 7785 |
| Mitchellsplain | 7785 |
| Mithchells Plain | 7785 |
| Mkhuhlu | 1246 |
| Mkuze | 3974 |
| Mkuze | 3975 |
| Mkuze | 3976 |
| Mkuze | 3979 |
| Mkuze | 3980 |
| Mkuze | 3965 |
| Mkuze | 3966 |
| Mkuze | 3967 |
| Mkuze | 3972 |
| Mmabatho | 2777 |
| Mobeni | 4092 |
| Mobeni | 4088 |
| Mobeni | 4050 |
| Modderfontein | 1609 |
| Mogwase | 0195 |
| Mogwase | 0371 |
| Mogwase | 0372 |
| Mogwase | 0379 |
| Mogwase | 0388 |
| Mogwase | 0394 |
| Mogwase | 0396 |
| Mogwase | 0397 |
| Mogwase | 0398 |
| Mohlakeng | 1759 |
| Mohlakeng | 1766 |
| Mokamole | 0633 |
| Mokodumela | 9869 |
| Molototsi | 0827 |
| Molteno | 5500 |
| Montagu | 6720 |
| Montanapark | 0182 |
| Montanapark | 0159 |
| Monte Vista | 7460 |
| Mooi River | 3300 |
| Moorreesburg | 7310 |
| Moorreesburg | 7312 |
| Moot | 0084 |
| Moreletapark | 0181 |
| Moreletapark | 0072 |
| Moreletapark | 0044 |
| Moreletapark | 0081 |
| Mossel Bay | 6501 |
| Mossel Bay | 6503 |
| Mossel Bay | 6504 |
| Mossel Bay | 6505 |
| Mossel Bay | 6506 |
| Mossel Bay | 6507 |
| Mossel Bay | 6510 |
| Mossel Bay | 6511 |
| Mosselbaai | 6506 |
| Mosselbaai | 6510 |
| Mosselbaai | 6503 |
| Mosselbay | 6506 |
| Motherwell | 6211 |
| Mothibistad | 8477 |
| Mothibistad | 8481 |
| Mothibistad | 8482 |
| Motsethabang | 9487 |
| Motsethabong | 9463 |
| Motsethabong | 9475 |
| Motsethabong | 9478 |
| Mount Ayliff | 4735 |
| Mount Ayliff | 4736 |
| Mount Ayliff | 4737 |
| Mount Ayliff | 4738 |
| Mount Edgecombe | 4301 |
| Mount Edgecombe | 4068 |
| Mount Edgecombe | 4156 |
| Mount Fletcher | 4770 |
| Mount Fletcher | 4771 |
| Mount Fletcher | 4772 |
| Mount Fletcher | 4773 |
| Mount Fletcher | 4774 |
| Mount Fletcher | 4776 |
| Mount Fletcher | 4777 |
| Mount Fletcher | 4778 |
| Mount Fletcher | 4780 |
| Mount Fletcher | 4781 |
| Mount Fletcher | 4786 |
| Mount Fletcher | 4789 |
| Mount Fletcher | 4790 |
| Mount Frere | 5086 |
| Mount Frere | 5087 |
| Mount Frere | 5088 |
| Mount Frere | 5089 |
| Mount Frere | 5090 |
| Mount Frere | 5091 |
| Mount Frere | 5092 |
| Mount Frere | 5093 |
| Mount Frere | 5094 |
| Mount Frere | 5095 |
| Mount Frere | 5096 |
| Mount Frere | 5097 |
| Mowbray | 7700 |
| Mphahlele | 0761 |
| Mphahlele | 0762 |
| Mphahlele | 0785 |
| Mphahlele | 0736 |
| Mphe-Batho | 0412 |
| Mphogodiba | 0732 |
| Mpudulle | 1078 |
| Mpumalanga | 1055 |
| Mpumalanga | 1050 |
| Mpumalanga | 2375 |
| Mpumalanga | 2410 |
| Mqanduli | 5129 |
| Mqanduli | 5079 |
| Mqanduli | 5080 |
| Mqanduli | 5081 |
| Mqanduli | 5082 |
| Mqanduli | 5083 |
| Mqanduli | 5084 |
| Mqanduli | 5085 |
| Msobomvu | 4961 |
| Mtubatuba | 3925 |
| Mtubatuba | 3930 |
| Mtubatuba | 3935 |
| Mtubatuba | 3936 |
| Mtubatuba | 3940 |
| Mtunzini | 3867 |
| Muizenberg | 7945 |
| Muizenberg | 7946 |
| Muldersdrif | 1739 |
| Muldersdrif | 1747 |
| Mungomani | 0992 |
| Munster | 4278 |
| Munzhedzi | 0948 |
| Mutale | 0956 |
| Muthathi | 0976 |
| Mutlestad | 0413 |
