| City | Population | |
|---|---|---|
| 1 | Tehran | 7153309 |
| 2 | Mashhad | 2307177 |
| 3 | Isfahan | 1547164 |
| 4 | Karaj | 1448075 |
| 5 | Tabriz | 1424641 |
| 6 | Shiraz | 1249942 |
| 7 | Qom | 900000 |
| 8 | Ahvaz | 841145 |
| 9 | Pasragad Branch | 787878 |
| 10 | Kahriz | 766706 |
| 11 | Kermanshah | 621100 |
| 12 | Rasht | 594590 |
| 13 | Kerman | 577514 |
| 14 | Orumiyeh | 577307 |
| 15 | Zahedan | 551980 |
| 16 | Hamadan | 528256 |
| 17 | Azadshahr | 514102 |
| 18 | Arak | 503647 |
| 19 | Yazd | 477905 |
| 20 | Eslamshahr | 450000 |
| 21 | Ardabil | 410753 |
| 22 | Abadan | 370180 |
| 23 | Zanjan | 357471 |
| 24 | Bandar Abbas | 352173 |
| 25 | Sanandaj | 349176 |
| 26 | Qazvin | 333635 |
| 27 | Khorramshahr | 330606 |
| 28 | Khorramabad | 329825 |