| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Igol | city | Tehran | Iran | 35.91 | 51.49 | 7703 | 2022 |
| Ijdan | city | Tehran | Iran | 35.28 | 51.58 | 2821 | 35089 |
| Ira | city | Tehran | Iran | 35.81 | 51.84 | 6971 | 2006 |
| Ira' | city | Tehran | Iran | 35.81 | 51.84 | 6971 | 2006 |
| Iran | city | Tehran | Iran | 35.69 | 51.44 | 4189 | 1484699 |
| Iranshahr | city | Tehran | Iran | 35.71 | 51.42 | 4189 | 1481474 |
| Istgah-e Abar Dezh | city | Tehran | Iran | 35.21 | 51.79 | 2650 | 15755 |
| Istgah-e Rah Ahan-e Abar Dezh | city | Tehran | Iran | 35.21 | 51.79 | 2650 | 15755 |
| Ivanak | city | Tehran | Iran | 35.76 | 51.35 | 5029 | 1463153 |
| Izha | city | Tehran | Iran | 35.59 | 52.63 | 6709 | 2086 |