Kermanshah's 2026 population is now estimated at 1,131,900. In 1950, the population of Kermanshah was 97,027. Kermanshah has grown by 14,540 in the last year, which represents a 1.3% 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 Kermanshah, which typically includes Kermanshah's population in addition to adjacent suburban areas.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Tehran | 9,840,100 | 1.13% |
| Mashhad | 3,503,160 | 1.23% |
| Shiraz | 1,784,280 | 1.16% |
| Tabriz | 1,713,390 | 1.04% |
| Karaj | 1,627,960 | 0.82% |
| Qom | 1,409,610 | 1.24% |
| Ahvaz | 1,339,790 | 1.13% |
| Orumiyeh | 871,090 | 1.27% |
| Rasht | 766,257 | 1.12% |
| Bandar Abbas | 702,281 | 1.64% |
| Zahedan | 650,565 | 1.07% |
| Ardabil | 621,815 | 1.25% |
| Hamadan | 618,469 | 1.09% |
| Yazd | 616,739 | 1.22% |
| Arak | 596,642 | 1.17% |
| Kerman | 564,192 | 0.9% |
| Zanjan | 516,352 | 1.31% |
| Sanandaj | 488,805 | 1.27% |
| Qazvin | 449,852 | 1.09% |
| Khorramabad | 425,870 | 1.16% |
| Gorgan | 395,930 | 1.13% |
| Sari | 341,682 | 1.05% |
