| Source | UN (World Urbanization Prospects 2025) |
| Date | 10 Apr 2026 |
| Code | City | Population | Share (%) | Rank | Change | |||
|---|---|---|---|---|---|---|---|---|
| 2025 | 2026 | South Africa | World | Population | (%) | |||
| Joha | Johannesburg | 7,077,175 | 7,173,199 | 11.1 | 1 | 49 | 96,024 | 1.36 |
| Cape | Cape Town | 4,508,921 | 4,585,729 | 7.08 | 2 | 93 | 76,808 | 1.70 |
| Durb | Durban | 3,177,927 | 3,179,346 | 4.91 | 3 | 156 | 1,419 | 0.04 |
| Pret | Pretoria | 1,836,166 | 1,862,152 | 2.88 | 4 | 272 | 25,986 | 1.42 |
| Klip | Klipgat | 1,300,816 | 1,317,564 | 2.03 | 5 | 391 | 16,748 | 1.29 |
| Temb | Tembisa | 1,298,512 | 1,317,315 | 2.03 | 6 | 393 | 18,803 | 1.45 |
| Evat | Evaton | 773,229 | 782,698 | 1.21 | 7 | 679 | 9,469 | 1.22 |
| Gqeb | Gqeberha | 661,220 | 661,405 | 1.02 | 8 | 826 | 185 | 0.03 |
| Mase | Masetjhaba View | 522,402 | 535,560 | 0.827 | 9 | 1041 | 13,158 | 2.52 |
| Bloe | Bloemfontein | 496,295 | 501,579 | 0.775 | 10 | 1111 | 5,284 | 1.06 |
| Chie | Chief Albert Luthuli Park | 441,204 | 458,367 | 0.708 | 11 | 1230 | 17,163 | 3.89 |
| Polo | Polokwane | 451,786 | 452,460 | 0.699 | 12 | 1246 | 674 | 0.15 |
| Eden | Edendale | 342,930 | 344,358 | 0.532 | 13 | 1680 | 1,428 | 0.42 |
| Kany | Kanyamazane | 292,211 | 296,149 | 0.457 | 14 | 1980 | 3,938 | 1.35 |
| Kimb | Kimberley | 271,078 | 280,742 | 0.434 | 15 | 2085 | 9,664 | 3.57 |
| Mada | Madadeni | 277,281 | 277,698 | 0.429 | 16 | 2113 | 417 | 0.15 |
| Paar | Paarl | 259,665 | 265,230 | 0.410 | 17 | 2228 | 5,565 | 2.14 |
| Vand | Vanderbijlpark | 257,093 | 260,166 | 0.402 | 18 | 2270 | 3,073 | 1.20 |
| Cent | Centurion | 255,900 | 260,046 | 0.402 | 19 | 2275 | 4,146 | 1.62 |
| Some | Somerset West | 239,943 | 244,643 | 0.378 | 20 | 2422 | 4,700 | 1.96 |
| Rees | Reeston | 244,390 | 244,460 | 0.378 | 21 | 2425 | 70 | 0.03 |
| Rust | Rustenburg | 220,723 | 223,705 | 0.346 | 22 | 2658 | 2,982 | 1.35 |
| eMal | eMalahleni | 220,586 | 223,187 | 0.345 | 23 | 2671 | 2,601 | 1.18 |
| Bots | Botshabelo-N | 218,046 | 223,082 | 0.345 | 24 | 2674 | 5,036 | 2.31 |
| Lena | Lenasia | 214,770 | 217,786 | 0.336 | 25 | 2754 | 3,016 | 1.40 |
| Enne | Ennerdale | 210,428 | 214,274 | 0.331 | 26 | 2794 | 3,846 | 1.83 |
| Midd | Middelburg | 209,906 | 212,354 | 0.328 | 27 | 2831 | 2,448 | 1.17 |
| Diep | Diepsloot | 196,763 | 198,440 | 0.306 | 28 | 3054 | 1,677 | 0.85 |
| Phut | Phuthaditjhaba | 182,141 | 182,254 | 0.281 | 29 | 3344 | 113 | 0.06 |
| Vosm | Vosman | 179,869 | 182,090 | 0.281 | 30 | 3349 | 2,221 | 1.23 |
| Geor | George | 179,907 | 180,250 | 0.278 | 31 | 3386 | 343 | 0.19 |
| KwaM | KwaMhlanga | 164,049 | 166,880 | 0.258 | 32 | 3664 | 2,831 | 1.73 |
| Moth | Motherwell | 165,100 | 165,115 | 0.255 | 33 | 3705 | 15 | 0.01 |
| Rieb | Riebeeckstad | 157,921 | 160,357 | 0.248 | 34 | 3816 | 2,436 | 1.54 |
| Sisu | Sisulu Village | 157,462 | 157,536 | 0.243 | 35 | 3893 | 74 | 0.05 |
| Sakh | Sakhrol | 149,742 | 150,723 | 0.233 | 36 | 4079 | 981 | 0.66 |
| eMba | eMbalenhle | 146,921 | 148,690 | 0.230 | 37 | 4131 | 1,769 | 1.20 |
| Sewe | Seweding | 145,930 | 147,448 | 0.228 | 38 | 4180 | 1,518 | 1.04 |
| Ga-R | Ga-Rankuwa | 144,161 | 147,093 | 0.227 | 39 | 4191 | 2,932 | 2.03 |
| Bomb | Bombay Heights | 143,723 | 143,768 | 0.222 | 40 | 4291 | 45 | 0.03 |
| Moha | Mohadin | 140,960 | 142,058 | 0.219 | 41 | 4333 | 1,098 | 0.78 |
| KwaN | KwaNobuhle | 125,644 | 125,713 | 0.194 | 42 | 4928 | 69 | 0.05 |
| Cosm | Cosmo City | 120,401 | 123,400 | 0.191 | 43 | 5035 | 2,999 | 2.49 |
| Paar | Paardekraal Ext 2 | 119,589 | 121,431 | 0.188 | 44 | 5126 | 1,842 | 1.54 |
| Worc | Worcester | 111,039 | 115,386 | 0.178 | 45 | 5406 | 4,347 | 3.91 |
| Coal | Coalbrook | 112,185 | 113,608 | 0.175 | 46 | 5496 | 1,423 | 1.27 |
| Kari | Kariega | 111,872 | 111,905 | 0.173 | 47 | 5582 | 33 | 0.03 |
| Akas | Akasia | 106,130 | 107,970 | 0.167 | 48 | 5790 | 1,840 | 1.73 |
| Sekg | Sekgakgapeng | 105,105 | 105,251 | 0.163 | 49 | 5944 | 146 | 0.14 |
| Stel | Stellenbosch | 101,507 | 104,726 | 0.162 | 50 | 5979 | 3,219 | 3.17 |
| Mpum | Mpumalanga | 104,558 | 104,675 | 0.162 | 51 | 5982 | 117 | 0.11 |
| KaMa | KaMaqhekeza | 101,465 | 104,464 | 0.161 | 52 | 5992 | 2,999 | 2.96 |
| Mbol | Mboloko | 102,374 | 103,811 | 0.160 | 53 | 6033 | 1,437 | 1.40 |
| Blou | Blouberg Rise | 98,805 | 100,730 | 0.156 | 54 | 6209 | 1,925 | 1.95 |
| Rua | Rua Vista | 99,222 | 100,726 | 0.156 | 55 | 6211 | 1,504 | 1.52 |