| City | 2026 Pop. ↓ |
|---|---|
| Izhevsk | 613,828 |
| Irkutsk | 605,048 |
| Ivanovo | 355,041 |
| Ivanteevka | 84,466 |
| Ishim | 67,361 |
| Ishimbay | 61,292 |
| Izberbash | 60,244 |
| Iskitim | 56,364 |
| Izobilnyy | 37,131 |
| Irbit | 35,854 |
| Istra | 34,138 |
| Ipatovo | 24,932 |
| Isilkul | 19,157 |
| Inta | 18,123 |
| Inza | 15,601 |
| Ilansky | 15,073 |
| Inkerman | 13,565 |
| Ivdel | 13,552 |
| Insar | 7,396 |
| Innopolis | 5,029 |
| Igarka | 3,593 |