| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Īdah | city | Ostan-e Khorasan | Iran | 37.6833333 | 57.4833333 | 4419 | 2717 |
| Īdalīk | city | Ostan-e Khorasan | Iran | 37.0666667 | 59.5333333 | 3369 | 2732 |
| Īdeh | city | Ostan-e Khorasan | Iran | 37.6833333 | 57.4833333 | 4419 | 2717 |
| Īdū | city | Ostan-e Khorasan | Iran | 34.1605556 | 58.5963889 | 5593 | 2842 |
| Ījand-e Bālā | city | Ostan-e Khorasan | Iran | 33.35 | 59.3830556 | 6240 | 2870 |
| Īl Ḩeşār | city | Ostan-e Khorasan | Iran | 36.6169444 | 59.1827778 | 3887 | 2758 |
| Īlah | city | Ostan-e Khorasan | Iran | 34.7666667 | 60.4166667 | 4196 | 2819 |
| Īldalīk | city | Ostan-e Khorasan | Iran | 37.0666667 | 59.5333333 | 3369 | 2732 |
| Īlkhānī | city | Ostan-e Khorasan | Iran | 34.3722222 | 56.9630556 | 2519 | 2833 |
| Īlleh | city | Ostan-e Khorasan | Iran | 34.7666667 | 60.4166667 | 4196 | 2819 |
| Īlābād | city | Ostan-e Khorasan | Iran | 36.8333333 | 58.8997222 | 3917 | 2749 |
| Īlānjoq | city | Ostan-e Khorasan | Iran | 37.3666667 | 59.15 | 1811 | 2730 |
| Īnchegān | city | Ostan-e Khorasan | Iran | 36.7513889 | 58.3708333 | 5259 | 2749 |
| Īncheh | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Īncheh Keykānlū | city | Ostan-e Khorasan | Iran | 37.3444444 | 58.6155556 | 6174 | 2730 |
| Īncheh Shāhbāz | city | Ostan-e Khorasan | Iran | 37.3658333 | 58.5538889 | 6026 | 2730 |
| Īncheh Soflā | city | Ostan-e Khorasan | Iran | 37.8352778 | 56.4225 | 1420 | 2710 |
| Īncheh Sāblāgh | city | Ostan-e Khorasan | Iran | 37.3475 | 58.6027778 | 6102 | 2730 |
| Īncheh Sābolāgh | city | Ostan-e Khorasan | Iran | 37.3475 | 58.6027778 | 6102 | 2730 |
| Īncheh-ye Bālā | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Īncheh-ye Pā'īn | city | Ostan-e Khorasan | Iran | 37.8352778 | 56.4225 | 1420 | 2710 |
| Īncheh-ye Soflá | city | Ostan-e Khorasan | Iran | 37.8352778 | 56.4225 | 1420 | 2710 |
| Īncheh-ye ‘Olyā | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Īnchānt | city | Ostan-e Khorasan | Iran | 37.5166667 | 56.3833333 | 4179 | 2721 |
| Īnjeh Bolāgh | city | Ostan-e Khorasan | Iran | 36.1333333 | 60.65 | 2549 | 2772 |
| Īnjānlū | city | Ostan-e Khorasan | Iran | 37.6666667 | 57.05 | 2290 | 2717 |
| Īnjīkhān | city | Ostan-e Khorasan | Iran | 36.9858333 | 58.2627778 | 6161 | 2744 |
| Īnī Jok | city | Ostan-e Khorasan | Iran | 37.1333333 | 59.1333333 | 4468 | 2735 |
| Īraj | city | Ostan-e Khorasan | Iran | 37.1333333 | 57.4 | 4032 | 2735 |
| Īrajābād | city | Ostan-e Khorasan | Iran | 35.2727778 | 58.1813889 | 3382 | 2804 |
| Īsfī | city | Ostan-e Khorasan | Iran | 35.8208333 | 57.3619444 | 4655 | 2786 |
| Īshkīsh | city | Ostan-e Khorasan | Iran | 33.3166667 | 59.6666667 | 6761 | 2870 |
| Īsk | city | Ostan-e Khorasan | Iran | 31.7322222 | 60.0127778 | 5351 | 2920 |
| Īsnu | city | Ostan-e Khorasan | Iran | 33.2808333 | 59.5819444 | 7391 | 2870 |
| Īsowf | city | Ostan-e Khorasan | Iran | 32.6472222 | 60.0566667 | 5498 | 2889 |
| Īstgāh-e Haftşado Sīzdah-ye Kalāt-e Sefīd | city | Ostan-e Khorasan | Iran | 35.2672222 | 60.305 | 6000 | 2804 |
| Īstgāh-e Jājarm | city | Ostan-e Khorasan | Iran | 36.7072222 | 56.5244444 | 3011 | 2750 |
| Īstgāh-e Sankhvāst | city | Ostan-e Khorasan | Iran | 36.7666667 | 56.9666667 | 3369 | 2749 |
| Īstgāh-e Āzādvar | city | Ostan-e Khorasan | Iran | 36.75 | 56.75 | 3208 | 2749 |
| Īstī Sū | city | Ostan-e Khorasan | Iran | 36.9333333 | 59.75 | 4999 | 2744 |
| Īvar | city | Ostan-e Khorasan | Iran | 36.9733333 | 56.2180556 | 3631 | 2744 |
| Īvar | city | Ostan-e Khorasan | Iran | 35.4755556 | 58.5861111 | 6443 | 2797 |
| Īvāsk | city | Ostan-e Khorasan | Iran | 31.6480556 | 59.4177778 | 4875 | 2926 |
| Īzmān-e Bālā | city | Ostan-e Khorasan | Iran | 37.8166667 | 57.5 | 4947 | 2713 |
| Īzmān-e Pā'īn | city | Ostan-e Khorasan | Iran | 37.7666667 | 57.45 | 3851 | 2716 |
| Īzmān-e Soflá | city | Ostan-e Khorasan | Iran | 37.7666667 | 57.45 | 3851 | 2716 |
| Īzmān-e ‘Olyā | city | Ostan-e Khorasan | Iran | 37.8166667 | 57.5 | 4947 | 2713 |
| Īzī | city | Ostan-e Khorasan | Iran | 36.2288889 | 57.7494444 | 3372 | 2772 |
| Īzū | city | Ostan-e Khorasan | Iran | 34.1605556 | 58.5963889 | 5593 | 2842 |
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