| City | 2026 Pop. ↓ |
|---|---|
| Bandar-e Abas | 769,280 |
| Babol | 325,246 |
| Bojnurd | 300,581 |
| Bushehr | 292,953 |
| Birjand | 266,456 |
| Bukan | 248,938 |
| Borujerd | 224,079 |
| Bandar-e Mahshahr | 182,453 |
| Baneh | 181,719 |
| Bam | 180,151 |
| Behbahan | 159,738 |
| Borazjan | 148,365 |
| Bumahen | 130,305 |
| Baharestan | 129,847 |
| Bandar-e Anzali | 122,457 |
| Baghestan | 114,505 |
| Behshahr | 106,623 |
| Bonab | 97,145 |
| Bandar-e Ganaveh | 96,497 |
| Bandar-e Emam Khomeyni | 91,877 |
| Babolsar | 84,630 |
| Baqershahr | 80,066 |
| Bafq | 74,939 |
| Borujen | 66,946 |
| Bandar-e Torkaman | 66,184 |
| Bijar | 54,467 |
| Baft | 37,520 |
| Bandar-e Kangan | 37,422 |
| Bandar-e Deylam | 33,970 |
| Bagh-e Malek | 33,523 |
| Bardaskan | 33,018 |
| Bahar | 30,884 |
| Bandar-e Lengeh | 30,349 |
| Bardsir | 15,666 |