Sanandaj's 2025 population is now estimated at 482,664. In 1950, the population of Sanandaj was 33,698. Sanandaj has grown by 6,598 in the last year, which represents a 1.39% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Sanandaj, which typically includes Sanandaj's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Tehran | 9,729,740 | 1.18% |
| Mashhad | 3,460,660 | 1.32% |
| Esfahan | 2,327,990 | 1.46% |
| Shiraz | 1,763,900 | 1.21% |
| Tabriz | 1,695,670 | 1.05% |
| Karaj | 1,614,660 | 0.73% |
| Qom | 1,392,280 | 1.34% |
| Ahvaz | 1,324,800 | 1.18% |
| Kermanshah | 1,117,360 | 1.43% |
| Orumiyeh | 860,169 | 1.38% |
| Rasht | 757,765 | 1.16% |
| Bandar Abbas | 690,978 | 1.92% |
| Zahedan | 643,702 | 1.08% |
| Ardabil | 614,154 | 1.35% |
| Hamadan | 611,801 | 1.12% |
| Yazd | 609,302 | 1.31% |
| Arak | 589,740 | 1.24% |
| Kerman | 559,142 | 0.84% |
| Eslamshahr | 553,083 | 1.64% |
| Zanjan | 509,683 | 1.44% |
| Sanandaj | 482,664 | 1.39% |
| Qazvin | 444,984 | 1.12% |
| Khorramabad | 420,998 | 1.22% |
| Shahriyar | 420,092 | 2.08% |
| Gorgan | 391,519 | 1.17% |
| Qods | 357,183 | 1.32% |
| Kashan | 356,957 | 1.4% |
| Sari | 338,115 | 1.07% |
