| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ich | city | Ostan-e Tehran | Iran | 35.4727778 | 52.9755556 | 5354 | 44218 |
| Igel | city | Ostan-e Tehran | Iran | 35.9119444 | 51.4872222 | 7703 | 47772 |
| Igol | city | Ostan-e Tehran | Iran | 35.9119444 | 51.4872222 | 7703 | 47772 |
| Ij | city | Ostan-e Tehran | Iran | 35.4727778 | 52.9755556 | 5354 | 44218 |
| Ijdan | city | Ostan-e Tehran | Iran | 35.2841667 | 51.5763889 | 2821 | 48147 |
| Ijdanak | city | Ostan-e Tehran | Iran | 35.2841667 | 51.6 | 2900 | 48147 |
| Imamzadeh `Abdullah | city | Ostan-e Tehran | Iran | 35.5172222 | 52.9319444 | 6040 | 47997 |
| Imamzadeh-i-Daud | city | Ostan-e Tehran | Iran | 35.85 | 51.35 | 8077 | 47797 |
| Imāmzādeh ‘Abdullāh | city | Ostan-e Tehran | Iran | 35.5172222 | 52.9319444 | 6040 | 47997 |
| Imāmzādeh-i-Dāud | city | Ostan-e Tehran | Iran | 35.85 | 51.35 | 8077 | 47797 |
| Ira | city | Ostan-e Tehran | Iran | 35.8083333 | 51.8408333 | 6971 | 47824 |
| Irin | city | Ostan-e Tehran | Iran | 35.5777778 | 51.2125 | 3507 | 47972 |
| Irman | city | Ostan-e Tehran | Iran | 35.5777778 | 51.2125 | 3507 | 47972 |
| Ishtahabad | city | Ostan-e Tehran | Iran | 35.7208333 | 50.3722222 | 3858 | 44348 |
| Ishtahard | city | Ostan-e Tehran | Iran | 35.7208333 | 50.3722222 | 3858 | 44348 |
| Istgah-e Avval | city | Ostan-e Tehran | Iran | 35.8166667 | 51.4166667 | 5334 | 47824 |
| Istgah-e Gaduk | city | Ostan-e Tehran | Iran | 35.8236111 | 52.9088889 | 6699 | 47393 |
| Istgah-e Kaduy | city | Ostan-e Tehran | Iran | 35.8236111 | 52.9088889 | 6699 | 47393 |
| Istgah-e Rah Ahan-e Hashtgerd | city | Ostan-e Tehran | Iran | 35.9697222 | 50.6188889 | 3917 | 45016 |
| Izha | city | Ostan-e Tehran | Iran | 35.5913889 | 52.6341667 | 6679 | 47947 |
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