| City | Boxcode | StrCode | Area |
| JABAVU | 1808 | 1809 | PIMVILLE |
| JABAVU EXT 1 | | 1809 | PIMVILLE |
| JABAVU UIT 1 | | 1809 | PIMVILLE |
| JABAVU EXT 2 | | 1809 | PIMVILLE |
| JABAVU UIT 2 | | 1809 | PIMVILLE |
| JABAVU EXT 3 | | 1809 | PIMVILLE |
| JABAVU UIT 3 | | 1809 | PIMVILLE |
| JABULANI | 1868 | 1868 | KWAXUMA |
| JABULANI EXT 1 | | 1868 | KWAXUMA |
| JABULANI UIT 1 | | 1868 | KWAXUMA |
| JABULANI EXT 2 | | 1868 | KWAXUMA |
| JABULANI UIT 2 | | 1868 | KWAXUMA |
| JABULANI FLATS | | 1868 | KWAXUMA |
| JABULANI HOSTEL | | 1868 | KWAXUMA |
| JABULANI NORTH | | 1868 | KWAXUMA |
| JABULANI-NOORD | | 1868 | KWAXUMA |
| JABULANI SOUTH | | 1868 | KWAXUMA |
| JABULANI-SUID | | 1868 | KWAXUMA |
| JACANLEE | | 2194 | JOHANNESBURG |
| JACHFONTEIN | 1780 | 1779 | WESTONARIA |
| JACK MOLELEKI | | 1434 | KWENZEKILE |
| JACKAL CREEK GOLF ESTATE | | 2188 | OLIVEDALE |
| JACKAL CREEK GHOLF LANDGOED | | 2188 | OLIVEDALE |
| JACKALPAN | 2950 | | NEWCASTLE |
| JACKAROO PARK | 1035 | 1035 | WITBANK |
| JACKAROOPARK | 1035 | 1035 | WITBANK |
| JACKSONVILLE | | 6059 | SALTVILLE |
| JACOBS | 4026 | 4052 | DURBAN |
| JACOBSDAL | 8710 | 8710 | KIMBERLEY |
| JAGERSFONTEIN | 9974 | 9974 | JAGERSFONTEIN |
| JAGERSRUST | 3354 | | BERGVILLE |
| JAGTERSHOF | | 7580 | KUILS RIVER |
| JAKARANDAS | | 7580 | KUILS RIVER |
| JAMESON PARK | 1492 | | NIGEL |
| JAMESON'S DRIFT | 3273 | | KRANSKOP |
| JAMESONS DRIFT | 3273 | | KRANSKOP |
| JAMESTOWN | | 7600 | STELLENBOSCH |
| JAMESTOWN | 9742 | 9742 | JAMESTOWN |
| JAN CILLIERSPARK | | 9459 | WELKOM |
| JAN HOFMEYER | | 2092 | JOHANNESBURG |
| JAN KEMPDORP | 8550 | 8550 | WARRENTON |
| JAN NIEMANDPARK | | 186 | PRETORIA |
| JAN ROZ | | 4399 | TONGAAT |
| JAN SMUTSVILLE | | 1459 | BOKSBURG |
| JANALET | | 699 | POLOKWANE |
| JANE FURSE | 1085 | 1085 | BURGERSFORT |
| JANE FURSE HOSPITAL | 1085 | | BURGERSFORT |
| JANHOFMEYER | | 9459 | WELKOM |
| JANSENDAL | | 6229 | UITENHAGE |
| JANSENPARK | | 1459 | BOKSBURG |
| JANSENVILLE | 6265 | 6265 | JANSENVILLE |
| JANSENVILLE EXT 2 | | 6265 | JANSENVILLE |
| JANSENVILLE UIT 2 | | 6265 | JANSENVILLE |
| JARMAN TSP | | 6020 | PORT ELIZABETH |
| JARMAN DGD | | 6020 | PORT ELIZABETH |
| JATNIEL | 1509 | | BENONI |
| JCC CAMP | 6506 | | KWANONQABA |
| JEBESE | 5080 | | MQANDULI |
| JEFFREYS BAY | 6330 | 6330 | JEFFREYS BAY |
| JEFFREYSBAAI | 6330 | 6330 | JEFFREYS BAY |
| JENCA | 5170 | | TSOLO |
| JENN-HAVEN | 8405 | | DANIELSKUIL |
| JEPPESTOWN | 2043 | 2094 | JOHANNESBURG |
| JERICHO | 189 | 189 | BRITS |
| JERSEY VALLEY | 4932 | 4932 | JERSEY VALLEY |
| JERUSALEM | | 1401 | GERMISTON |
| JERUSALEM PARK | | 9463 | MOTSETHABONG |
| JET PARK | 1469 | 1459 | BOKSBURG |
| JET PARK SPEED SERVICES | 1483 | 1459 | BOKSBURG |
| JET PARK SPOEDDIENSTE | 1483 | 1459 | BOKSBURG |
| JHB INTERNATIONAL AIRPORT | 1627 | | KEMPTON PARK |
| JHB INTERNASIONALE LUGHAWE | 1627 | | KEMPTON PARK |
| JIJANA GROUNDS | | 6201 | ZWIDE |
| JIJANA-GRONDE | | 6201 | ZWIDE |
| JIM FOUCHEPARK | | 9459 | WELKOM |
| JIM FOUCHEPARK EXT 11 | | 9459 | WELKOM |
| JIM FOUCHEPARK UIT 11 | | 9459 | WELKOM |
| JIMC POST OFFICE | 1639 | | KEMPTON PARK |
| JIYANE SECTION | 1632 | 1632 | TEMBISA |
| JIYANE SEKSIE | 1632 | 1632 | TEMBISA |
| JOCKS STORE | 3655 | | LINK HILLS |
| JOCKS WINKEL | 3655 | | LINK HILLS |
| JOE MODISE PEACE VILLAGE | | 6242 | KWANOBUHLE |
| JOE MODISE VREDESDORP | | 6242 | KWANOBUHLE |
| JOE SLOVO | 2500 | 2499 | CARLETONVILLE |
| JOE SLOVO | 9323 | | KAGISANONG |
| JOE SLOVO | | 7455 | LANGA |
| JOE SLOVO CAMP | | 7441 | MILNERTON |
| JOE SLOVOKAMP | | 7441 | MILNERTON |
| JOE SLOVO CAMP | 6203 | 6203 | ZWIDE |
| JOE SLOVOKAMP | 6203 | 6203 | ZWIDE |
| JOE SLOVO PARK | | 7441 | MILNERTON |
| JOE SLOVOPARK | | 7441 | MILNERTON |
| JOE SLOVO PARK | | 6665 | HEIDELBERG |
| JOE SLOVOPARK | | 6665 | HEIDELBERG |
| JOHAN DEO | 1908 | | MASOHENG |
| JOHANNESBURG | 2000 | 2001 | JOHANNESBURG |
| JOHANNESBURG COUNTRY CLUB | | 2001 | JOHANNESBURG |
| JOHANNESBURG INT AIRPORT | 1627 | | KEMPTON PARK |
| JOHANNESBURG INT LUGHAWE | 1627 | | KEMPTON PARK |
| JOHANNESBURG INTERNATIONAL AIRPORT | 1627 | | KEMPTON PARK |
| JOHANNESBURG INTERNASIONALE LUGHAWE | 1627 | | KEMPTON PARK |
| JOHANNESBURG NORTH | 2153 | 2188 | JOHANNESBURG |
| JOHANNESBURG-NOORD | 2153 | 2188 | JOHANNESBURG |
| JOHN DAKA | | 8345 | MANKURWANE |
| JOHN VORSTERPARK | | 2351 | ERMELO |
| JOHNSON PARK | | 6850 | WORCESTER |
| JOHNSONPARK | | 6850 | WORCESTER |
| JOHNSON PARK EXT 2 | | 6850 | WORCESTER |
| JOHNSONPARK UIT 2 | | 6850 | WORCESTER |
| JOHNSON SQUARE | 6001 | | PORT ELIZABETH |
| JOHNSON'S POST | 6504 | | MOSSEL BAY |
| JOHNSONS POST | 6504 | | MOSSEL BAY |
| JOHNSTONE FARM | 2952 | 2952 | OSIZWENI |
| JOKAZI DRIFT | 4982 | | KENTANI |
| JOKAZIDRIF | 4982 | | KENTANI |
| JOLIVET | 3305 | | HIGHFLATS |
| JONKERSPARK | | 7600 | STELLENBOSCH |
| JOOD SE KAMP | | 6571 | KNYSNA |
| JOOD SE KAMP A | | 6571 | KNYSNA |
| JOOD SE KAMP B | | 6571 | KNYSNA |
| JOOSTENBERG VLAKTE | | 7570 | KRAAIFONTEIN |
| JORDAANPARK | | 1441 | HEIDELBERG |
| JORDANIA | | 9701 | BETHLEHEM |
| JORDANIA | | 9499 | KROONSTAD |
| JOUBERT PARK | 2044 | 2001 | JOHANNESBURG |
| JOUBERTPARK | 2044 | 2001 | JOHANNESBURG |
| JOUBERT PARK | | 7530 | BELLVILLE |
| JOUBERTPARK | | 7530 | BELLVILLE |
| JOUBERTINA | 6410 | 6410 | JOUBERTINA |
| JOUBERTON | 2574 | 2574 | KLERKSDORP |
| JOUBERTON EXT 1 | | 2574 | JOUBERTON |
| JOUBERTON UIT 1 | | 2574 | JOUBERTON |
| JOUBERTON EXT 10 | | 2574 | JOUBERTON |
| JOUBERTON UIT 10 | | 2574 | JOUBERTON |
| JOUBERTON EXT 11 | 2574 | 2574 | JOUBERTON |
| JOUBERTON UIT 11 | 2574 | 2574 | JOUBERTON |
| JOUBERTON EXT 12 | | 2574 | JOUBERTON |
| JOUBERTON UIT 12 | | 2574 | JOUBERTON |
| JOUBERTON EXT 13 | | 2574 | JOUBERTON |
| JOUBERTON UIT 13 | | 2574 | JOUBERTON |
| JOUBERTON EXT 14 | | 2574 | JOUBERTON |
| JOUBERTON UIT 14 | | 2574 | JOUBERTON |
| JOUBERTON EXT 15 | | 2574 | JOUBERTON |
| JOUBERTON UIT 15 | | 2574 | JOUBERTON |
| JOUBERTON EXT 16 | | 2574 | JOUBERTON |
| JOUBERTON UIT 16 | | 2574 | JOUBERTON |
| JOUBERTON EXT 17 | 2574 | 2574 | KLERKSDORP |
| JOUBERTON UIT 17 | 2574 | 2574 | KLERKSDORP |
| JOUBERTON EXT 18 | 2574 | 2574 | JOUBERTON |
| JOUBERTON UIT 18 | 2574 | 2574 | JOUBERTON |
| JOUBERTON EXT 19 | | 2574 | KLERKSDORP |
| JOUBERTON UIT 19 | | 2574 | KLERKSDORP |
| JOUBERTON EXT 2 | | 2574 | JOUBERTON |
| JOUBERTON UIT 2 | | 2574 | JOUBERTON |
| JOUBERTON EXT 20 | | 2574 | JOUBERTON |
| JOUBERTON UIT 20 | | 2574 | JOUBERTON |
| JOUBERTON EXT 21 | | 2574 | JOUBERTON |
| JOUBERTON UIT 21 | | 2574 | JOUBERTON |
| JOUBERTON EXT 22 | 2574 | 2574 | JOUBERTON |
| JOUBERTON UIT 22 | 2574 | 2574 | JOUBERTON |
| JOUBERTON EXT 23 | 2574 | 2574 | JOUBERTON |
| JOUBERTON UIT 23 | 2574 | 2574 | JOUBERTON |
| JOUBERTON EXT 24 | | 2574 | JOUBERTON |
| JOUBERTON UIT 24 | | 2574 | JOUBERTON |
| JOUBERTON EXT 3 | 2573 | 2573 | JOUBERTON |
| JOUBERTON UIT 3 | 2573 | 2573 | JOUBERTON |
| JOUBERTON EXT 4 | 2574 | 2574 | JOUBERTON |
| JOUBERTON UIT 4 | 2574 | 2574 | JOUBERTON |
| JOUBERTON EXT 5 | 2739 | 2739 | KLERKSDORP |
| JOUBERTON UIT 5 | 2739 | 2739 | KLERKSDORP |
| JOUBERTON EXT 6 | | 2574 | KLERKSDORP |
| JOUBERTON UIT 6 | | 2574 | KLERKSDORP |
| JOUBERTON EXT 7 | | 2574 | JOUBERTON |
| JOUBERTON UIT 7 | | 2574 | JOUBERTON |
| JOUBERTON EXT 8 | | 2574 | JOUBERTON |
| JOUBERTON UIT 8 | | 2574 | JOUBERTON |
| JOUBERTON EXT 9 | 2574 | 2574 | KLERKSDORP |
| JOUBERTON UIT 9 | 2574 | 2574 | KLERKSDORP |
| JOUBERTON TSP | | 2574 | JOUBERTON |
| JOUBERTON DGD | | 2574 | JOUBERTON |
| JOUBERTON WEST EXT 10 | | 2574 | JOUBERTON |
| JOUBERTON-WES UIT 10 | | 2574 | JOUBERTON |
| JOUBERTON WEST EXT 7 | | 2574 | JOUBERTON |
| JOUBERTON-WES UIT 7 | | 2574 | JOUBERTON |
| JOY CLINIC | 1519 | | DAVEYTON |
| JOZA | | 6139 | GRAHAMSTOWN |
| JOZA EXT 4 | | 6139 | GRAHAMSTOWN |
| JOZA UIT 4 | | 6139 | GRAHAMSTOWN |
| JOZANNASHOEK | 9763 | 9763 | STERKSPRUIT |
| JOZINI | 3969 | | INGWAVUMA |
| JUBAPARK EXT 2 | 2470 | | VOLKSRUST |
| JUBAPARK UIT 2 | 2470 | | VOLKSRUST |
| JUBILEE PARK | | 6241 | GAMBLEVILLE |
| JUBILEE PARK | | 7100 | EERSTE RIVER |
| JUBILEEPARK | | 7100 | EERSTE RIVER |
| JUDITH'S PAARL | | 2094 | JOHANNESBURG |
| JUJURA | 5040 | | WILLOWVALE |
| JUKSKEI PARK | 2153 | 2188 | JOHANNESBURG |
| JUKSKEIPARK | 2153 | 2188 | JOHANNESBURG |
| JUKSKEI PARK EXT 9 | 2153 | 2188 | JUKSKEIPARK |
| JUKSKEIPARK UIT 9 | 2153 | 2188 | JUKSKEIPARK |
| JUKSKEI VIEW EXT 17 | 1621 | 1662 | MIDRAND |
| JUKSKEISIG UIT 17 | 1621 | 1662 | MIDRAND |
| JULESBURG | 875 | | TZANEEN |
| JULIES PARK | 1700 | 1709 | MARAISBURG |
| JUNCTION FERRY | 5170 | | TSOLO |
| JUNCTION HILL | | 1401 | GERMISTON |
| JUNO | 748 | 748 | POLOKWANE |
| JUPITER | | 2094 | JOHANNESBURG |
| JUPITER EXT 3 | | 2094 | JOHANNESBURG |
| JUPITER UIT 3 | | 2094 | JOHANNESBURG |
| JUPITER EXT 4 | | 2094 | JOHANNESBURG |
| JUPITER UIT 4 | | 2094 | JOHANNESBURG |
| JUPITER EXT 5 | | 2094 | JOHANNESBURG |
| JUPITER UIT 5 | | 2094 | JOHANNESBURG |
| JURA STREET | 4147 | | MALVERN |
| JUSTICIA | 1289 | 1289 | THULAMAHASHE |
| JYBINOYKWK | 5090 | | MOUNT FRERE |
