| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Iapiu | city | Ostan-e Khorasan | Iran | 33.9705556 | 58.7086111 | 5774 | 2847 |
| Ibrahimabad | city | Ostan-e Khorasan | Iran | 33.4666667 | 56.9166667 | 2034 | 2861 |
| Ibrahimabad | city | Ostan-e Khorasan | Iran | 36.6113889 | 57.6552778 | 3622 | 2758 |
| Ibrahimabad | city | Ostan-e Khorasan | Iran | 36.295 | 58.5372222 | 3868 | 2766 |
| Ibrahimabad | city | Ostan-e Khorasan | Iran | 32.8416667 | 59.5897222 | 6292 | 2884 |
| Ibrahimabad | city | Ostan-e Khorasan | Iran | 32.6661111 | 60.0494444 | 5505 | 2889 |
| Ibrahimabad | city | Ostan-e Khorasan | Iran | 32.9244444 | 60.2552778 | 4192 | 2884 |
| Ibrahimi | city | Ostan-e Khorasan | Iran | 32.2872222 | 59.7411111 | 5344 | 2903 |
| Ibrahimi | city | Ostan-e Khorasan | Iran | 34.2841667 | 59.8733333 | 2618 | 2839 |
| Ibrāhīmi | city | Ostan-e Khorasan | Iran | 32.2872222 | 59.7411111 | 5344 | 2903 |
| Ibrāhīmi | city | Ostan-e Khorasan | Iran | 34.2841667 | 59.8733333 | 2618 | 2839 |
| Ibrāhīmābād | city | Ostan-e Khorasan | Iran | 33.4666667 | 56.9166667 | 2034 | 2861 |
| Ibrāhīmābād | city | Ostan-e Khorasan | Iran | 36.6113889 | 57.6552778 | 3622 | 2758 |
| Ibrāhīmābād | city | Ostan-e Khorasan | Iran | 36.295 | 58.5372222 | 3868 | 2766 |
| Ibrāhīmābād | city | Ostan-e Khorasan | Iran | 32.8416667 | 59.5897222 | 6292 | 2884 |
| Ibrāhīmābād | city | Ostan-e Khorasan | Iran | 32.6661111 | 60.0494444 | 5505 | 2889 |
| Ibrāhīmābād | city | Ostan-e Khorasan | Iran | 32.9244444 | 60.2552778 | 4192 | 2884 |
| Idah | city | Ostan-e Khorasan | Iran | 37.6833333 | 57.4833333 | 4419 | 2717 |
| Idalik | city | Ostan-e Khorasan | Iran | 37.0666667 | 59.5333333 | 3369 | 2732 |
| Ideh | city | Ostan-e Khorasan | Iran | 37.6833333 | 57.4833333 | 4419 | 2717 |
| Idu | city | Ostan-e Khorasan | Iran | 34.1605556 | 58.5963889 | 5593 | 2842 |
| Igdaliq | city | Ostan-e Khorasan | Iran | 37.0666667 | 59.5333333 | 3369 | 2732 |
| Igdālīq | city | Ostan-e Khorasan | Iran | 37.0666667 | 59.5333333 | 3369 | 2732 |
| Ijand-e Bala | city | Ostan-e Khorasan | Iran | 33.35 | 59.3830556 | 6240 | 2870 |
| Il Hesar | city | Ostan-e Khorasan | Iran | 36.6169444 | 59.1827778 | 3887 | 2758 |
| Ilabad | city | Ostan-e Khorasan | Iran | 36.8333333 | 58.8997222 | 3917 | 2749 |
| Ilah | city | Ostan-e Khorasan | Iran | 34.7666667 | 60.4166667 | 4196 | 2819 |
| Ilanjoq | city | Ostan-e Khorasan | Iran | 37.3666667 | 59.15 | 1811 | 2730 |
| Ildalik | city | Ostan-e Khorasan | Iran | 37.0666667 | 59.5333333 | 3369 | 2732 |
| Ilghar | city | Ostan-e Khorasan | Iran | 32.9330556 | 59.5561111 | 6496 | 2884 |
| Ilghār | city | Ostan-e Khorasan | Iran | 32.9330556 | 59.5561111 | 6496 | 2884 |
| Ilkhani | city | Ostan-e Khorasan | Iran | 34.3722222 | 56.9630556 | 2519 | 2833 |
| Illeh | city | Ostan-e Khorasan | Iran | 34.7666667 | 60.4166667 | 4196 | 2819 |
| Imam Quli | city | Ostan-e Khorasan | Iran | 37.4388889 | 58.4986111 | 6105 | 2727 |
| Imam Sharaqi | city | Ostan-e Khorasan | Iran | 37.8666667 | 56.4166667 | 1509 | 2710 |
| Imruni | city | Ostan-e Khorasan | Iran | 33.7697222 | 58.3405556 | 4297 | 2856 |
| Imrūni | city | Ostan-e Khorasan | Iran | 33.7697222 | 58.3405556 | 4297 | 2856 |
| Imām Quli | city | Ostan-e Khorasan | Iran | 37.4388889 | 58.4986111 | 6105 | 2727 |
| Imām Sharaqi | city | Ostan-e Khorasan | Iran | 37.8666667 | 56.4166667 | 1509 | 2710 |
| Incha | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Inchant | city | Ostan-e Khorasan | Iran | 37.5166667 | 56.3833333 | 4179 | 2721 |
| Inchegan | city | Ostan-e Khorasan | Iran | 36.7513889 | 58.3708333 | 5259 | 2749 |
| Incheh | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Incheh Keykanlu | city | Ostan-e Khorasan | Iran | 37.3444444 | 58.6155556 | 6174 | 2730 |
| Incheh Sablagh | city | Ostan-e Khorasan | Iran | 37.3475 | 58.6027778 | 6102 | 2730 |
| Incheh Sabolagh | city | Ostan-e Khorasan | Iran | 37.3475 | 58.6027778 | 6102 | 2730 |
| Incheh Shahbaz | city | Ostan-e Khorasan | Iran | 37.3658333 | 58.5538889 | 6026 | 2730 |
| Incheh Sofla | city | Ostan-e Khorasan | Iran | 37.8352778 | 56.4225 | 1420 | 2710 |
| Incheh-ye Bala | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Incheh-ye Pa'in | city | Ostan-e Khorasan | Iran | 37.8352778 | 56.4225 | 1420 | 2710 |
| Incheh-ye Sofla | city | Ostan-e Khorasan | Iran | 37.8352778 | 56.4225 | 1420 | 2710 |
| Incheh-ye `Olya | city | Ostan-e Khorasan | Iran | 37.6719444 | 56.4197222 | 2559 | 2717 |
| Inchen Su`i | city | Ostan-e Khorasan | Iran | 37.5166667 | 56.3833333 | 4179 | 2721 |
| Inchen Sū‘ī | city | Ostan-e Khorasan | Iran | 37.5166667 | 56.3833333 | 4179 | 2721 |
| Ini Jok | city | Ostan-e Khorasan | Iran | 37.1333333 | 59.1333333 | 4468 | 2735 |
| Inja Bulak | city | Ostan-e Khorasan | Iran | 36.1333333 | 60.65 | 2549 | 2772 |
| Inja Bulaq | city | Ostan-e Khorasan | Iran | 36.1333333 | 60.65 | 2549 | 2772 |
| Inja Bulāq | city | Ostan-e Khorasan | Iran | 36.1333333 | 60.65 | 2549 | 2772 |
| Injanlu | city | Ostan-e Khorasan | Iran | 37.6666667 | 57.05 | 2290 | 2717 |
| Injeh Bolagh | city | Ostan-e Khorasan | Iran | 36.1333333 | 60.65 | 2549 | 2772 |
| Injikhan | city | Ostan-e Khorasan | Iran | 36.9858333 | 58.2627778 | 6161 | 2744 |
| Injā Būlak | city | Ostan-e Khorasan | Iran | 36.1333333 | 60.65 | 2549 | 2772 |
| Iraj | city | Ostan-e Khorasan | Iran | 37.1333333 | 57.4 | 4032 | 2735 |
| Irajabad | city | Ostan-e Khorasan | Iran | 35.2727778 | 58.1813889 | 3382 | 2804 |
| Is-Haqabad | city | Ostan-e Khorasan | Iran | 35.1625 | 58.4425 | 3372 | 2805 |
| Is-Hāqabād | city | Ostan-e Khorasan | Iran | 35.1625 | 58.4425 | 3372 | 2805 |
| Isfandiyar | city | Ostan-e Khorasan | Iran | 33.05 | 57.55 | 5196 | 2875 |
| Isfandiyār | city | Ostan-e Khorasan | Iran | 33.05 | 57.55 | 5196 | 2875 |
| Isfarain | city | Ostan-e Khorasan | Iran | 37.0172222 | 57.4491667 | 3900 | 2744 |
| Isfarat | city | Ostan-e Khorasan | Iran | 32.4208333 | 59.0802778 | 6548 | 2898 |
| Isfarāīn | city | Ostan-e Khorasan | Iran | 37.0172222 | 57.4491667 | 3900 | 2744 |
| Isfehdeh | city | Ostan-e Khorasan | Iran | 33.6569444 | 59.7758333 | 3904 | 2857 |
| Isfehrud | city | Ostan-e Khorasan | Iran | 32.8055556 | 59.3038889 | 5921 | 2885 |
| Isfehrūd | city | Ostan-e Khorasan | Iran | 32.8055556 | 59.3038889 | 5921 | 2885 |
| Isfi | city | Ostan-e Khorasan | Iran | 35.8208333 | 57.3619444 | 4655 | 2786 |
| Isfidin | city | Ostan-e Khorasan | Iran | 33.6569444 | 59.7758333 | 3904 | 2857 |
| Isfizar | city | Ostan-e Khorasan | Iran | 32.8666667 | 59.6333333 | 6706 | 2884 |
| Isfizār | city | Ostan-e Khorasan | Iran | 32.8666667 | 59.6333333 | 6706 | 2884 |
| Isfārat | city | Ostan-e Khorasan | Iran | 32.4208333 | 59.0802778 | 6548 | 2898 |
| Isfīdīn | city | Ostan-e Khorasan | Iran | 33.6569444 | 59.7758333 | 3904 | 2857 |
| Ishaqi | city | Ostan-e Khorasan | Iran | 37.3833333 | 55.9166667 | 3087 | 3141 |
| Ishkish | city | Ostan-e Khorasan | Iran | 33.3166667 | 59.6666667 | 6761 | 2870 |
| Ishpishko | city | Ostan-e Khorasan | Iran | 32.7594444 | 58.8552778 | 4258 | 2888 |
| Ishqabad | city | Ostan-e Khorasan | Iran | 32.45 | 59.1 | 5734 | 2898 |
| Ishqabad | city | Ostan-e Khorasan | Iran | 33.2147222 | 59.19 | 5600 | 2871 |
| Ishqābād | city | Ostan-e Khorasan | Iran | 32.45 | 59.1 | 5734 | 2898 |
| Ishqābād | city | Ostan-e Khorasan | Iran | 33.2147222 | 59.19 | 5600 | 2871 |
| Ishtakhun | city | Ostan-e Khorasan | Iran | 32.9169444 | 59.5933333 | 6755 | 2884 |
| Ishtambarabad | city | Ostan-e Khorasan | Iran | 32.9663889 | 59.2847222 | 5291 | 2881 |
| Ishtambarābād | city | Ostan-e Khorasan | Iran | 32.9663889 | 59.2847222 | 5291 | 2881 |
| Ishtākhūn | city | Ostan-e Khorasan | Iran | 32.9169444 | 59.5933333 | 6755 | 2884 |
| Ishāqi | city | Ostan-e Khorasan | Iran | 37.3833333 | 55.9166667 | 3087 | 3141 |
| Isk | city | Ostan-e Khorasan | Iran | 31.7322222 | 60.0127778 | 5351 | 2920 |
| Iskachchu | city | Ostan-e Khorasan | Iran | 33.6833333 | 59 | 5944 | 2856 |
| Iskandar | city | Ostan-e Khorasan | Iran | 32.7777778 | 59.9658333 | 6062 | 2888 |
| Iskandari | city | Ostan-e Khorasan | Iran | 32.4633333 | 59.0516667 | 5370 | 2898 |
| Iskaug | city | Ostan-e Khorasan | Iran | 32.6280556 | 59.3733333 | 6925 | 2889 |
| Iskibang | city | Ostan-e Khorasan | Iran | 32.7063889 | 59.9766667 | 6889 | 2889 |
| Iskāndar | city | Ostan-e Khorasan | Iran | 32.7777778 | 59.9658333 | 6062 | 2888 |
| Iskībang | city | Ostan-e Khorasan | Iran | 32.7063889 | 59.9766667 | 6889 | 2889 |
| Isma`ilabad | city | Ostan-e Khorasan | Iran | 33.0761111 | 57.7077778 | 3270 | 2875 |
| Isma`ilabad | city | Ostan-e Khorasan | Iran | 33.0333333 | 59.3333333 | 5928 | 2878 |
| Isma`ilabad | city | Ostan-e Khorasan | Iran | 32.0636111 | 59.8522222 | 4393 | 2912 |
| Ismabad | city | Ostan-e Khorasan | Iran | 33.7333333 | 58.35 | 4297 | 2856 |
| Ismailabad | city | Ostan-e Khorasan | Iran | 33.4463889 | 58.975 | 4583 | 2864 |
| Ismailabad | city | Ostan-e Khorasan | Iran | 36.0333333 | 60.4166667 | 2687 | 2777 |
| Isma‘īlābād | city | Ostan-e Khorasan | Iran | 33.0761111 | 57.7077778 | 3270 | 2875 |
| Ismābād | city | Ostan-e Khorasan | Iran | 33.7333333 | 58.35 | 4297 | 2856 |
| Ismāilābād | city | Ostan-e Khorasan | Iran | 33.4463889 | 58.975 | 4583 | 2864 |
| Ismāīlābād | city | Ostan-e Khorasan | Iran | 36.0333333 | 60.4166667 | 2687 | 2777 |
| Ismā‘īlābād | city | Ostan-e Khorasan | Iran | 33.0333333 | 59.3333333 | 5928 | 2878 |
| Ismā‘īlābād | city | Ostan-e Khorasan | Iran | 32.0636111 | 59.8522222 | 4393 | 2912 |
| Isnu | city | Ostan-e Khorasan | Iran | 33.2808333 | 59.5819444 | 7391 | 2870 |
| Isowf | city | Ostan-e Khorasan | Iran | 32.6472222 | 60.0566667 | 5498 | 2889 |
| Ispain | city | Ostan-e Khorasan | Iran | 37.6666667 | 57.0166667 | 2112 | 2717 |
| Ispain | city | Ostan-e Khorasan | Iran | 37.25 | 59.1666667 | 3211 | 2734 |
| Ispāīn | city | Ostan-e Khorasan | Iran | 37.6666667 | 57.0166667 | 2112 | 2717 |
| Ispāīn | city | Ostan-e Khorasan | Iran | 37.25 | 59.1666667 | 3211 | 2734 |
| Isqul | city | Ostan-e Khorasan | Iran | 32.6194444 | 59.335 | 5944 | 2892 |
| Isqūl | city | Ostan-e Khorasan | Iran | 32.6194444 | 59.335 | 5944 | 2892 |
| Istanist | city | Ostan-e Khorasan | Iran | 32.6691667 | 59.4544444 | 7178 | 2889 |
| Istgah-e Azadvar | city | Ostan-e Khorasan | Iran | 36.75 | 56.75 | 3208 | 2749 |
| Istgah-e Haftsado Sizdah-ye Kalat-e Sefid | city | Ostan-e Khorasan | Iran | 35.2672222 | 60.305 | 6000 | 2804 |
| Istgah-e Jajarm | city | Ostan-e Khorasan | Iran | 36.7072222 | 56.5244444 | 3011 | 2750 |
| Istgah-e Sankhvast | city | Ostan-e Khorasan | Iran | 36.7666667 | 56.9666667 | 3369 | 2749 |
| Isti Su | city | Ostan-e Khorasan | Iran | 36.9333333 | 59.75 | 4999 | 2744 |
| Istiksu | city | Ostan-e Khorasan | Iran | 36.9333333 | 59.75 | 4999 | 2744 |
| Istin | city | Ostan-e Khorasan | Iran | 36.7838889 | 57.0116667 | 3333 | 2749 |
| Istin | city | Ostan-e Khorasan | Iran | 31.3111111 | 60.0772222 | 5511 | 2931 |
| Istind | city | Ostan-e Khorasan | Iran | 33.8511111 | 59.8266667 | 3520 | 2853 |
| Istlak | city | Ostan-e Khorasan | Iran | 32.9169444 | 59.5627778 | 6466 | 2884 |
| Istlāk | city | Ostan-e Khorasan | Iran | 32.9169444 | 59.5627778 | 6466 | 2884 |
| Istānist | city | Ostan-e Khorasan | Iran | 32.6691667 | 59.4544444 | 7178 | 2889 |
| Ivar | city | Ostan-e Khorasan | Iran | 36.9733333 | 56.2180556 | 3631 | 2744 |
| Ivar | city | Ostan-e Khorasan | Iran | 35.4755556 | 58.5861111 | 6443 | 2797 |
| Ivask | city | Ostan-e Khorasan | Iran | 31.6480556 | 59.4177778 | 4875 | 2926 |
| Izi | city | Ostan-e Khorasan | Iran | 37 | 57.5833333 | 4251 | 2744 |
| Izi | city | Ostan-e Khorasan | Iran | 36.2288889 | 57.7494444 | 3372 | 2772 |
| Izman-e Bala | city | Ostan-e Khorasan | Iran | 37.8166667 | 57.5 | 4947 | 2713 |
| Izman-e Pa'in | city | Ostan-e Khorasan | Iran | 37.7666667 | 57.45 | 3851 | 2716 |
| Izman-e Sofla | city | Ostan-e Khorasan | Iran | 37.7666667 | 57.45 | 3851 | 2716 |
| Izman-e `Olya | city | Ostan-e Khorasan | Iran | 37.8166667 | 57.5 | 4947 | 2713 |
| Izu | city | Ostan-e Khorasan | Iran | 34.1605556 | 58.5963889 | 5593 | 2842 |
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